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  <H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>
  <DIV style="font-family: 'Times New Roman',Times,serif">
  
  
  
  <P align="center" style="font-size: 10pt">As filed with the Securities and Exchange Commission on June&nbsp;17, 2005
  
  
  
  <P align="right" style="font-size: 10pt">Registration No.&nbsp;333-_______
  
  
  
  <DIV style="width: 100%; border-bottom: 2pt solid black; font-size: 1pt">&nbsp;</DIV>
  <DIV style="width: 100%; border-bottom: 1pt solid black; font-size: 1pt">&nbsp;</DIV>
  
  
  
  
  <P align="center" style="font-size: 14pt"><B>UNITED STATES<BR>
  SECURITIES AND EXCHANGE COMMISSION</B>
  
  <DIV align="center" style="font-size: 12pt"><B>Washington, D.C. 20549</B>
  </DIV>
  
  
  <P align="center" style="font-size: 10pt"><B>__________________________</B>
  
  
  <P align="center" style="font-size: 18pt"><B>FORM S-8</B>
  
  
  <P align="center" style="font-size: 10pt">REGISTRATION STATEMENT<BR>
  UNDER<BR>
  THE SECURITIES ACT OF 1933
  
  
  
  <P align="center" style="font-size: 10pt"><B>__________________________</B>
  
  
  <P align="center" style="font-size: 24pt"><B>BTU International, Inc.</B>
  
  
  <DIV align="center" style="font-size: 10pt">(Exact name of registrant as specified in its charter)</DIV>
  
  
  <DIV align="center">
  <TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
  <!-- Begin Table Head -->
  <TR valign="bottom">
      <TD width="47%">&nbsp;</TD>
      <TD width="5%">&nbsp;</TD>
      <TD width="47%">&nbsp;</TD>
  </TR>
  <!-- End Table Head -->
  <!-- Begin Table Body -->
  <TR valign="bottom">
      <TD align="center" valign="top"><B>Delaware</B>
  </TD>
      <TD>&nbsp;</TD>
      <TD align="center" valign="top"><B>04-2781248</B></TD>
  </TR>
  <TR valign="bottom">
      <TD align="center" valign="top">(State or other jurisdiction<BR>
  of incorporation or organization)
  </TD>
      <TD>&nbsp;</TD>
      <TD align="center" valign="top">(I.R.S. Employer<BR>
  Identification No.)</TD>
  </TR>
  <!-- End Table Body -->
  </TABLE>
  </DIV>
  
  
  <P align="center" style="font-size: 10pt"><B>23 Esquire Road<BR>
  North Billerica, MA 01862-2596<BR>
  (978)&nbsp;667-4111</B><BR>
  (Address of principal executive offices, including zip code)
  
  
  
  <DIV align="center">
  <DIV style="font-size: 3pt; margin-top: 16pt; width: 26%; border-top: 1px solid #000000">&nbsp;</DIV>
  </DIV>
  
  
  
  
  <P align="center" style="font-size: 10pt"><B>BTU International, Inc. 2003 Equity Incentive Plan</B><BR>
  (Full title of the plan)
  
  
  
  <DIV align="center">
  <DIV style="font-size: 3pt; margin-top: 16pt; width: 26%; border-top: 1px solid #000000">&nbsp;</DIV>
  </DIV>
  
  
  
  
  <P align="center" style="font-size: 10pt"><B>Paul J. van der Wansem<BR>
  Chairman and Chief Executive Officer<BR>
  BTU International, Inc.<BR>
  23 Esquire Road<BR>
  North Billerica, MA 01862-2596<BR>
  (978)&nbsp;667-4111</B><BR>
  (Name, address and telephone number, including area code, of agent for service)
  
  
  
  <DIV align="center">
  <DIV style="font-size: 3pt; margin-top: 16pt; width: 26%; border-top: 1px solid #000000">&nbsp;</DIV>
  </DIV>
  
  
  
  
  <P align="center" style="font-size: 10pt">Please send copies of all communications to:<BR>
  <B><I>Keith F. Higgins, Esq.</I></B><BR>
  <B>Ropes &#038; Gray LLP<BR>
  One International Place<BR>
  Boston, MA 02110<BR>
  617-951-7000<BR>
  617-951-7050 (facsimile)</B>
  
  
  
  <P align="center" style="font-size: 10pt"><B>CALCULATION OF REGISTRATION FEE</B>
  
  
  <P>
  <DIV style="width: 100%; border: 2px solid black; padding: 3px;">
  
  
  <DIV align="center">
  <TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
  <!-- Begin Table Head -->
  <TR valign="bottom">
      <TD width="51%">&nbsp;</TD>
      <TD width="3%">&nbsp;</TD>
      <TD width="10%">&nbsp;</TD>
      <TD width="5%">&nbsp;</TD>
      <TD width="1%">&nbsp;</TD>
      <TD width="3%">&nbsp;</TD>
      <TD width="1%">&nbsp;</TD>
      <TD width="5%">&nbsp;</TD>
      <TD width="1%">&nbsp;</TD>
      <TD width="3%">&nbsp;</TD>
      <TD width="1%">&nbsp;</TD>
      <TD width="5%">&nbsp;</TD>
      <TD width="1%">&nbsp;</TD>
      <TD width="3%">&nbsp;</TD>
      <TD width="1%">&nbsp;</TD>
      <TD width="5%">&nbsp;</TD>
      <TD width="1%">&nbsp;</TD>
  </TR>
  <TR style="font-size: 8pt" valign="bottom">
      <TD>&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD nowrap align="center" colspan="2"><I>Proposed Maximum</I></TD>
      <TD>&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD nowrap align="center" colspan="2"><I>Proposed Maximum</I></TD>
      <TD>&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD nowrap align="center" colspan="2">&nbsp;</TD>
      <TD>&nbsp;</TD>
  </TR>
  <TR style="font-size: 8pt" valign="bottom">
      <TD nowrap align="left"><I>Title of Each Class of</I></TD>
      <TD>&nbsp;</TD>
      <TD nowrap align="center" colspan="2"><I>Amount to be</I></TD>
      <TD>&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD nowrap align="center" colspan="2"><I>Offering Price Per</I></TD>
      <TD>&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD nowrap align="center" colspan="2"><I>Aggregate Offering</I></TD>
      <TD>&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD nowrap align="center" colspan="2"><I>Amount of</I></TD>
      <TD>&nbsp;</TD>
  </TR>
  <TR style="font-size: 8pt" valign="bottom">
      <TD nowrap align="left"><I>Securities to be Registered</I></TD>
      <TD>&nbsp;</TD>
      <TD nowrap align="center" colspan="2"><I>Registered (1)</I></TD>
      <TD>&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD nowrap align="center" colspan="2"><I>Share(1)</I></TD>
      <TD>&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD nowrap align="center" colspan="2"><I>Price(1)</I></TD>
      <TD>&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD nowrap align="center" colspan="2"><I>Registration Fee</I></TD>
      <TD>&nbsp;</TD>
  </TR>
  
  <!-- End Table Head -->
  <!-- Begin Table Body -->
  <TR style="font-size: 1px">
      <TD colspan="17" align="left" style="border-top: 1px solid #000000">&nbsp;</TD>
  </TR>
  <TR valign="bottom">
      <TD><DIV style="margin-left:30px; text-indent:-15px">Common Stock, $.01
  par value per share</DIV></TD>
      <TD>&nbsp;</TD>
      <TD colspan="3" align="center">700,000 shares</TD>
      <TD>&nbsp;</TD>
      <TD align="left">$</TD>
      <TD align="right">3.68</TD>
      <TD>&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD align="left">$</TD>
      <TD align="right">2,445,129</TD>
      <TD>&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD align="left">$</TD>
      <TD align="right">287.79</TD>
      <TD>&nbsp;</TD>
  </TR>
  <!-- End Table Body -->
  </TABLE>
  </DIV>
  </DIV>
  
  
  <P>
  <TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">
  
  <TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
      <TD width="3%" nowrap align="left">(1)</TD>
      <TD width="1%">&nbsp;</TD>
      <TD>Of the 700,000 shares to be registered hereunder, 348,450 shares are subject to outstanding
  options and the registration fee for these shares have been calculated based on the actual
  exercise price. The offering price of the remaining 351,550 shares not subject to options on
  the date hereof of $3.68 per share has been estimated solely for the purpose of determining
  the registration fee pursuant to Rule 457(c) and 457(h)(1) on the basis of the average high
  and low prices of the common stock, par value $.01 per share, as reported on the Nasdaq
  National Market on June&nbsp;15, 2005.</TD>
  </TR>
  
  <TR>
      <TD colspan="5">&nbsp;</TD>
  </TR>
  <TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
      <TD width="3%" nowrap align="left">(2)</TD>
      <TD width="1%">&nbsp;</TD>
      <TD>Pursuant to Rule 416(a) under the Securities Act of 1933, this registration statement also
  covers such additional shares of Common Stock as may issued to prevent dilution from stock
  splits, stock dividends and similar transactions.</TD>
  </TR>
  
  </TABLE>
  
  
  <DIV style="width: 100%; border-bottom: 1pt solid black; margin-top: 10pt; font-size: 1pt">&nbsp;</DIV>
  <DIV style="width: 100%; border-bottom: 2pt solid black; font-size: 1pt">&nbsp;</DIV>
  
  
  
  
  
  
  <P align="center" style="font-size: 10pt">&nbsp;
  </DIV>
  
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  <DIV style="font-family: 'Times New Roman',Times,serif">
  
  
  
  
  <!-- TOC -->
  <A name="toc"><DIV align="CENTER" style="page-break-before:always"><U><B>TABLE OF CONTENTS</B></U></DIV></A>
  
  <P><CENTER>
  <TABLE border="0" width="90%" cellpadding="0" cellspacing="0">
  <TR>
  	<TD width="3%"></TD>
  	<TD width="3%"></TD>
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  </TR>
  <TR><TD colspan="9"><A HREF="#000"> PART I&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;INFORMATION REQUIRED IN THE SECTION 10(a) PROSPECTUS</A></TD></TR>
  <TR><TD colspan="9"><A HREF="#001"> PART II&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;INFORMATION REQUIRED IN THE REGISTRATION STATEMENT</A></TD></TR>
  <TR><TD></TD><TD colspan="8"><A HREF="#002">Item&nbsp;3. Incorporation of Documents by Reference.</A></TD></TR>
  <TR><TD></TD><TD colspan="8"><A HREF="#003">Item&nbsp;4. Description of Securities.</A></TD></TR>
  <TR><TD></TD><TD colspan="8"><A HREF="#004">Item&nbsp;5. Interests of Named Experts and Counsel.</A></TD></TR>
  <TR><TD></TD><TD colspan="8"><A HREF="#005">Item&nbsp;6. Indemnification of Directors and Officers.</A></TD></TR>
  <TR><TD></TD><TD colspan="8"><A HREF="#006">Item&nbsp;7. Exemption From Registration Claimed.</A></TD></TR>
  <TR><TD></TD><TD colspan="8"><A HREF="#007">Item&nbsp;8. Exhibits.</A></TD></TR>
  <TR><TD></TD><TD colspan="8"><A HREF="#008">Item&nbsp;9. Undertakings.</A></TD></TR>
  <TR><TD colspan="9"><A HREF="#009"> SIGNATURES</A></TD></TR>
  <TR><TD colspan="9"><A HREF="b55514epexv5w1.htm">EX-5.1 Consent of Ropes & Gray LLP</A></TD></TR>
  <TR><TD colspan="9"><A HREF="b55514epexv23w1.htm">EX-23.1 Consent of Independent Public Accountants</A></TD></TR>
  </TABLE>
  </CENTER>
  <!-- /TOC -->
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  <H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>
  
  
  
  
  <!-- link1 " PART I&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;INFORMATION REQUIRED IN THE SECTION 10(a) PROSPECTUS" -->
  <DIV align="left"><A NAME="000"></A></DIV>
  
  <P align="center" style="font-size: 10pt"><B>PART I</B>
  
  
  
  <P align="center" style="font-size: 10pt"><B>INFORMATION REQUIRED IN THE SECTION 10(a) PROSPECTUS</B>
  
  
  <P align="left" style="font-size: 10pt">Note: The document(s) containing the information required by Item&nbsp;1 of this Form S-8 and the
  statement of availability of information of BTU International, Inc. (the &#147;Registrant&#148;), and other
  information required by Item&nbsp;2 of this Form will be sent or given to employees as specified by Rule
  428 under the Securities Act of 1933, as amended (the &#147;Securities Act&#148;). In accordance with Rule
  428 and the requirements of Part&nbsp;I of Form S-8, such documents are not being filed with the
  Securities and Exchange Commission (the &#147;Commission&#148;) either as part of this Registration Statement
  or as prospectuses or prospectus supplements pursuant to Rule&nbsp;424. The Registrant shall maintain a
  file of such documents in accordance with the provisions of Rule&nbsp;428. Upon request, the Registrant
  shall furnish to the Commission or its staff a copy or copies of any or all of the documents
  included in such file.
  
  
  <!-- link1 " PART II&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;INFORMATION REQUIRED IN THE REGISTRATION STATEMENT" -->
  <DIV align="left"><A NAME="001"></A></DIV>
  
  <P align="center" style="font-size: 10pt"><B>PART II</B>
  
  
  
  <P align="center" style="font-size: 10pt"><B>INFORMATION REQUIRED IN THE REGISTRATION STATEMENT</B>
  
  
  <!-- link2 "Item&nbsp;3. Incorporation of Documents by Reference." -->
  <DIV align="left"><A NAME="002"></A></DIV>
  
  <P align="left" style="font-size: 10pt"><B>Item&nbsp;3. Incorporation of Documents by Reference.</B>
  
  
  
  <P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Registrant hereby incorporates the following documents herein by reference:
  
  
  <P>
  <TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">
  
  <TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
      <TD width="2%" style="background: transparent">&nbsp;</TD>
      <TD width="3%" nowrap align="left">(a)</TD>
      <TD width="1%">&nbsp;</TD>
      <TD>The Registrant&#146;s latest annual report on Form 10-K for the fiscal year ended
  December&nbsp;31, 2004, filed with the Commission pursuant to the Securities Exchange Act of
  1934, as amended (the &#147;Exchange Act&#148;), on March&nbsp;31, 2005.</TD>
  </TR>
  
  <TR>
      <TD colspan="5">&nbsp;</TD>
  </TR>
  <TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
      <TD width="2%" style="background: transparent">&nbsp;</TD>
      <TD width="3%" nowrap align="left">(b)</TD>
      <TD width="1%">&nbsp;</TD>
      <TD>The Registrant&#146;s quarterly report on Form 10-Q for the period ended April&nbsp;4,
  2005, filed with the Commission pursuant to the Exchange Act, on May&nbsp;18, 2005.</TD>
  </TR>
  
  <TR>
      <TD colspan="5">&nbsp;</TD>
  </TR>
  <TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
      <TD width="2%" style="background: transparent">&nbsp;</TD>
      <TD width="3%" nowrap align="left">(c)</TD>
      <TD width="1%">&nbsp;</TD>
      <TD>The description of the Common Stock, $.01 par value per share, contained in
  the Registrant&#146;s Registration Statement on Form 8-A (File No.&nbsp;000-17297), filed with
  the Commission pursuant to Section&nbsp;12 of the Exchange Act on November&nbsp;15, 1988, as most
  recently revised by the Registrant&#146;s Form 8-A/A on February&nbsp;7, 1989.</TD>
  </TR>
  
  </TABLE>
  
  
  <P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;All documents subsequently filed by the Registrant pursuant to Sections&nbsp;13(a), 13(c), 14 and
  15(d) of the Exchange Act, prior to the filing of a post-effective amendment to this Registration
  Statement that indicates that all securities offered have been sold or which deregisters all
  securities then remaining unsold, shall be deemed to be incorporated herein by reference from the
  date of filing of such documents.
  
  <!-- link2 "Item&nbsp;4. Description of Securities." -->
  <DIV align="left"><A NAME="003"></A></DIV>
  
  <P align="left" style="font-size: 10pt"><B>Item&nbsp;4. Description of Securities.</B>
  
  
  
  <P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Not applicable.
  
  <!-- link2 "Item&nbsp;5. Interests of Named Experts and Counsel." -->
  <DIV align="left"><A NAME="004"></A></DIV>
  
  <P align="left" style="font-size: 10pt"><B>Item&nbsp;5. Interests of Named Experts and Counsel.</B>
  
  
  
  <P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Not applicable.
  
  <!-- link2 "Item&nbsp;6. Indemnification of Directors and Officers." -->
  <DIV align="left"><A NAME="005"></A></DIV>
  
  <P align="left" style="font-size: 10pt"><B>Item&nbsp;6. Indemnification of Directors and Officers.</B>
  
  
  
  <P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Registrant is incorporated under the laws of the State of Delaware. Section&nbsp;145 (&#147;Section
  145&#148;) of the General Corporation Law of the State of Delaware, as the same exists or may hereafter
  be amended (the &#147;General
  
  
  <P align="center" style="font-size: 10pt">&nbsp;
  </DIV>
  
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  <H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>
  
  <DIV style="font-family: 'Times New Roman',Times,serif">
  <P align="left" style="font-size: 10pt">Corporation Law&#148;), inter alia, provides that a Delaware corporation may indemnify any persons
  who were, are or are threatened to be made, parties to any threatened, pending or completed action,
  suit or proceeding, whether civil, criminal, administrative or investigative (other than an action
  by or in the right of such corporation), by reason of the fact that such person is or was an
  officer, director, employee or agent of such corporation, or is or was serving at the request of
  such corporation as a director, officer, employee or agent of another corporation or enterprise.
  The indemnity may include expenses (including attorneys&#146; fees), judgments, fines and amounts paid
  in settlement actually and reasonably incurred by such person in connection with such action, suit
  or proceeding, provided such person acted in good faith and in a manner he reasonably believed to
  be in or not opposed to the corporation&#146;s best interests and, with respect to any criminal action
  or proceeding, had no reasonable cause to believe that his conduct was illegal. In addition, the
  statutes of Delaware contain provisions to the general effect that any director shall in the
  performance of his duties be fully protected in relying in good faith upon the books of account or
  records of the corporation or statements prepared by any official of the corporation.
  
  
  
  <P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Section&nbsp;145 further authorizes a corporation to purchase and maintain insurance on behalf of
  any person who is or was a director, officer, employee or agent of the corporation, or is or was
  serving at the request of the corporation as a director, officer, employee or agent of another
  corporation or enterprise, against any liability asserted against him and incurred by him in any
  such capacity, arising out of his status as such, whether or not the corporation would otherwise
  have the power to indemnify him under Section&nbsp;145.
  
  
  <P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Registrant&#146;s amended and restated certificate of incorporation provides that the
  registrant shall indemnify its directors and officers to the full extent permitted by the laws of
  the State of Delaware. The Registrant&#146;s restated certificate of incorporation provides that the
  registrant&#146;s directors and officers shall not be liable to the registrant or its stockholders for
  monetary damages for breach of fiduciary duty as a director, except to the extent that the
  exculpation from liabilities is not permitted under the General Corporation Law as in effect at the
  time such liability is determined. The Registrant&#146;s By-laws provide that the Registrant shall
  indemnify its directors and officers to the extent permitted by the General Corporation Law of the
  State of Delaware.
  
  
  <P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;All of the Registrant&#146;s directors and officers are covered by insurance policies maintained by
  the Registrant against specified liabilities for actions taken in their capacities as such,
  including liabilities under the Securities Act of 1933, as amended.
  
  <!-- link2 "Item&nbsp;7. Exemption From Registration Claimed." -->
  <DIV align="left"><A NAME="006"></A></DIV>
  
  <P align="left" style="font-size: 10pt"><B>Item&nbsp;7. Exemption From Registration Claimed.</B>
  
  
  
  <P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Not applicable.
  
  <!-- link2 "Item&nbsp;8. Exhibits." -->
  <DIV align="left"><A NAME="007"></A></DIV>
  
  <P align="left" style="font-size: 10pt"><B>Item&nbsp;8. Exhibits.</B>
  
  
  <DIV align="center">
  <TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="95%">
  <!-- Begin Table Head -->
  <TR valign="bottom">
      <TD width="5%">&nbsp;</TD>
      <TD width="2%">&nbsp;</TD>
      <TD width="93%">&nbsp;</TD>
  </TR>
  <TR style="font-size: 8pt" valign="bottom">
      <TD nowrap align="left">Exhibit</TD>
      <TD>&nbsp;</TD>
      <TD>&nbsp;</TD>
  </TR>
  
  <!-- End Table Head -->
  <!-- Begin Table Body -->
  <TR valign="bottom">
      <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">4.1
  </DIV></TD>
      <TD>&nbsp;</TD>
      <TD align="left" valign="top">2003 Equity Incentive Plan (previously filed as Appendix&nbsp;A to the Schedule&nbsp;14A,
  filed on April&nbsp;14, 2003, File No.&nbsp;000-17297).</TD>
  </TR>
  <TR valign="bottom">
      <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
      <TD>&nbsp;</TD>
      <TD align="left" valign="top">&nbsp;</TD>
  </TR>
  <TR valign="bottom">
      <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">4.2
  </DIV></TD>
      <TD>&nbsp;</TD>
      <TD align="left" valign="top">Restated Certificate of Incorporation of BTU International, Inc. (previously
  filed as Exhibit&nbsp;3.0 to the Quarterly Report on Form&nbsp;10-Q for the period ended July&nbsp;1,
  2001, filed on August&nbsp;15, 2001, File No.&nbsp;0-17297).</TD>
  </TR>
  <!-- End Table Body -->
  </TABLE>
  </DIV>
  
  
  <P align="center" style="font-size: 10pt">-2-
  </DIV>
  
  <!-- PAGEBREAK -->
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  <H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>
  
  <DIV style="font-family: 'Times New Roman',Times,serif">
  
  <P>
  <TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">
  
  <TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
      <TD width="2%" style="background: transparent">&nbsp;</TD>
      <TD width="3%" nowrap align="left">4.3</TD>
      <TD width="1%">&nbsp;</TD>
      <TD>By-laws of BTU International, Inc. (previously filed as Exhibit&nbsp;3.3 to the
  Registration Statement on Form S-1 filed on October&nbsp;7, 1988, File No.&nbsp;033-24882).</TD>
  </TR>
  
  <TR>
      <TD colspan="5">&nbsp;</TD>
  </TR>
  <TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
      <TD width="2%" style="background: transparent">&nbsp;</TD>
      <TD width="3%" nowrap align="left">5.1</TD>
      <TD width="1%">&nbsp;</TD>
      <TD>Opinion of Ropes &#038; Gray LLP, filed herewith.</TD>
  </TR>
  
  <TR>
      <TD colspan="5">&nbsp;</TD>
  </TR>
  <TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
      <TD width="2%" style="background: transparent">&nbsp;</TD>
      <TD width="3%" nowrap align="left">23.1</TD>
      <TD width="1%">&nbsp;</TD>
      <TD>Consent of Vitale, Caturano &#038; Company, P.C., filed herewith.</TD>
  </TR>
  
  <TR>
      <TD colspan="5">&nbsp;</TD>
  </TR>
  <TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
      <TD width="2%" style="background: transparent">&nbsp;</TD>
      <TD width="3%" nowrap align="left">23.2</TD>
      <TD width="1%">&nbsp;</TD>
      <TD>Consent of Ropes &#038; Gray LLP, filed herewith (included in the opinion filed as Exhibit&nbsp;5.1).</TD>
  </TR>
  
  <TR>
      <TD colspan="5">&nbsp;</TD>
  </TR>
  <TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
      <TD width="2%" style="background: transparent">&nbsp;</TD>
      <TD width="3%" nowrap align="left">24.1</TD>
      <TD width="1%">&nbsp;</TD>
      <TD>Powers of Attorney, filed herewith (included on the signature page of this
  Registration Statement under the caption &#147;Power of Attorney&#148;).</TD>
  </TR>
  
  </TABLE>
  
  <!-- link2 "Item&nbsp;9. Undertakings." -->
  <DIV align="left"><A NAME="008"></A></DIV>
  
  <P align="left" style="font-size: 10pt"><B>Item&nbsp;9. Undertakings.</B>
  
  
  
  <P>
  <TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">
  
  <TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
      <TD width="2%" style="background: transparent">&nbsp;</TD>
      <TD width="3%" nowrap align="left">(a)</TD>
      <TD width="1%">&nbsp;</TD>
      <TD>The undersigned Registrant hereby undertakes:</TD>
  </TR>
  
  </TABLE>
  
  
  <P>
  <TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">
  
  <TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
      <TD width="6%" style="background: transparent">&nbsp;</TD>
      <TD width="3%" nowrap align="left">(1)</TD>
      <TD width="1%">&nbsp;</TD>
      <TD>To file, during any period in which offers or sales are being made, a
  post-effective amendment to this Registration Statement:</TD>
  </TR>
  
  </TABLE>
  
  
  <P>
  <TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">
  
  <TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
      <TD width="9%" style="background: transparent">&nbsp;</TD>
      <TD width="3%" nowrap align="left">(i)</TD>
      <TD width="1%">&nbsp;</TD>
      <TD>To include any prospectus required by Section&nbsp;10(a)(3) of the
  Securities Act of 1933, as amended (the &#147;Securities Act&#148;);</TD>
  </TR>
  
  <TR>
      <TD colspan="5">&nbsp;</TD>
  </TR>
  <TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
      <TD width="9%" style="background: transparent">&nbsp;</TD>
      <TD width="3%" nowrap align="left">(ii)</TD>
      <TD width="1%">&nbsp;</TD>
      <TD>To reflect in the prospectus any facts or events arising
  after the effective date of the Registration Statement (or the most
  recent post-effective amendment thereof) which, individually or in the
  aggregate, represent a fundamental change in the information set forth
  in the Registration Statement. Notwithstanding the foregoing, any
  increase or decrease in volume of securities offered (if the total
  dollar value of securities offered would not exceed that which was
  registered) and any deviation from the low or high end of the estimated
  maximum offering range may be reflected in the form of a prospectus
  filed with the Commission pursuant to Rule 424(b) if, in the aggregate,
  the changes in volume and price represent no more than 20&nbsp;percent
  change in the maximum aggregate offering price set forth in the
  &#147;Calculation of Registration Fee&#148; table in the effective registration
  statement;</TD>
  </TR>
  
  <TR>
      <TD colspan="5">&nbsp;</TD>
  </TR>
  <TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
      <TD width="9%" style="background: transparent">&nbsp;</TD>
      <TD width="3%" nowrap align="left">(iii)</TD>
      <TD width="1%">&nbsp;</TD>
      <TD>To include any material information with respect to the plan
  of distribution not previously disclosed in the Registration Statement
  or any material change to such information in the Registration
  Statement;</TD>
  </TR>
  
  </TABLE>
  
  
  
  <P align="left" style="margin-left:9%; font-size: 10pt"><I>provided, however</I>, that paragraphs (a)(1)(i) and (a)(1)(ii) above shall not apply if
  the information required to be included in a post-effective amendment by those
  paragraphs is contained in periodic reports filed with or furnished to the
  Commission by the Registrant pursuant to Section&nbsp;13 or 15(d) of the Exchange Act
  that are incorporated by reference in the Registration Statement.
  
  
  <P>
  <TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">
  
  <TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
      <TD width="6%" style="background: transparent">&nbsp;</TD>
      <TD width="3%" nowrap align="left">(2)</TD>
      <TD width="1%">&nbsp;</TD>
      <TD>That, for the purpose of determining any liability under the
  Securities Act, each such post-effective amendment shall be deemed to be a new
  registration statement relating to</TD>
  </TR>
  
  </TABLE>
  
  
  <P align="center" style="font-size: 10pt">-3-
  </DIV>
  
  <!-- PAGEBREAK -->
  <P><HR noshade><P>
  <H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>
  
  <DIV style="font-family: 'Times New Roman',Times,serif">
  
  
  <P align="left" style="margin-left:10%; font-size: 10pt">the securities offered therein, and the offering of such securities at that
  time shall be deemed to be the initial <I>bona fide </I>offering thereof.
  
  
  <P>
  <TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">
  
  <TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
      <TD width="6%" style="background: transparent">&nbsp;</TD>
      <TD width="3%" nowrap align="left">(3)</TD>
      <TD width="1%">&nbsp;</TD>
      <TD>To remove from registration by means of a post-effective amendment any
  of the securities being registered which remain unsold at the termination of
  the offering.</TD>
  </TR>
  
  </TABLE>
  
  
  <P>
  <TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">
  
  <TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
      <TD width="2%" style="background: transparent">&nbsp;</TD>
      <TD width="3%" nowrap align="left">(b)</TD>
      <TD width="1%">&nbsp;</TD>
      <TD>The undersigned Registrant hereby undertakes that, for purposes of determining
  any liability under the Securities Act, each filing of the Registrant&#146;s annual report
  pursuant to Section 13(a) or 15(d) of the Exchange Act (and, where applicable, each
  filing of an employee benefit plan&#146;s annual report pursuant to Section 15(d) of the
  Exchange Act) that is incorporated by reference in the Registration Statement shall be
  deemed to be a new Registration Statement relating to the securities offered therein,
  and the offering of such securities at that time shall be deemed to be the initial <I>bona
  fide </I>offering thereof.</TD>
  </TR>
  
  <TR>
      <TD colspan="5">&nbsp;</TD>
  </TR>
  <TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
      <TD width="2%" style="background: transparent">&nbsp;</TD>
      <TD width="3%" nowrap align="left">(c)</TD>
      <TD width="1%">&nbsp;</TD>
      <TD>Insofar as indemnification for liabilities arising under the Securities Act
  may be permitted to directors, officers and controlling persons of the Registrant
  pursuant to the foregoing provisions, or otherwise, the Registrant has been advised
  that in the opinion of the Commission such indemnification is against public policy as
  expressed in the Securities Act and is, therefore, unenforceable. In the event that a
  claim for indemnification against such liabilities (other than the payment by the
  Registrant of expenses incurred or paid by a director, officer or controlling person of
  the Registrant in the successful defense of any action, suit or proceeding) is asserted
  by such director, officer or controlling person in connection with the securities being
  registered, the Registrant will, unless in the opinion of its counsel the matter has
  been settled by controlling precedent, submit to a court of appropriate jurisdiction
  the question whether such indemnification by it is against public policy as expressed
  in the Securities Act and will be governed by the final adjudication of such issue.</TD>
  </TR>
  
  </TABLE>
  
  
  <P align="center" style="font-size: 10pt">-4-
  </DIV>
  
  <!-- PAGEBREAK -->
  <P><HR noshade><P>
  <H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>
  
  <DIV style="font-family: 'Times New Roman',Times,serif">
  <!-- link1 " SIGNATURES" -->
  <DIV align="left"><A NAME="009"></A></DIV>
  
  <P align="center" style="font-size: 10pt"><B>SIGNATURES</B>
  
  
  
  <P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pursuant to the requirements of the Securities Act of 1933, the Registrant certifies that it
  has reasonable grounds to believe that it meets all of the requirements for filing on Form S-8 and
  has duly caused this Registration Statement to be signed on its behalf by the undersigned,
  thereunto duly authorized, in the North Billerica of The Commonwealth
  of Massachusetts, on this 17th
  day of June, 2005.
  
  <DIV align="center">
  <TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
  <!-- Begin Table Head -->
  <TR valign="bottom">
      <TD width="48%">&nbsp;</TD>
      <TD width="2%">&nbsp;</TD>
      <TD width="2%">&nbsp;</TD>
      <TD width="2%">&nbsp;</TD>
      <TD width="46%">&nbsp;</TD>
  </TR>
  <!-- End Table Head -->
  <!-- Begin Table Body -->
  <TR valign="bottom">
      <TD valign="top">&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD colspan="3" valign="top" align="left"><FONT style="font-variant: SMALL-CAPS"><B>BTU International, Inc.</B></FONT></TD>
  </TR>
  <TR valign="bottom">
      <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
      <TD>&nbsp;</TD>
      <TD align="left" valign="top">&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD align="left" valign="top">&nbsp;</TD>
  </TR>
  <TR valign="bottom">
      <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
      <TD>&nbsp;</TD>
      <TD align="left" valign="top">&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD align="left" valign="top">&nbsp;</TD>
  </TR>
  <TR valign="bottom">
      <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;
  </DIV></TD>
      <TD>&nbsp;</TD>
      <TD align="left" valign="top">By:</TD>
      <TD>&nbsp;</TD>
      <TD align="left" valign="top">/s/ Paul J. van der Wansem</TD>
  </TR>
  <TR style="font-size: 1px">
      <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;
  </DIV></TD>
      <TD>&nbsp;</TD>
      <TD align="left" valign="top">&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD align="left" valign="top" style="border-top: 1px solid #000000">&nbsp;</TD>
  </TR>
  <TR valign="bottom">
      <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;
  </DIV></TD>
      <TD>&nbsp;</TD>
      <TD align="left" valign="top">&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD align="left" valign="top">Name: Paul J. van der Wansem<br>
  Title: Chairman, Chief Executive
  Officer and Director</TD>
  </TR>
  <!-- End Table Body -->
  </TABLE>
  </DIV>
  
  
  <P align="center" style="font-size: 10pt">&nbsp;
  </DIV>
  
  <!-- PAGEBREAK -->
  <P><HR noshade><P>
  <H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>
  
  <DIV style="font-family: 'Times New Roman',Times,serif">
  
  <P align="center" style="font-size: 10pt"><B>SIGNATURES AND POWER OF ATTORNEY</B>
  
  
  
  <P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Each person whose signature appears below constitutes and appoints Paul J. van der Wansem and
  Thomas P. Kealy, and each of them singly, his or her true and lawful attorney-in-fact and agent
  with full power of substitution and resubstitution, for him or her and in his or her name, place
  and stead, in any and all capacities, to sign any and all amendments (including post-effective
  amendments) to this Registration Statement on Form S-8 to be filed by BTU International, Inc., and
  to file the same, with all exhibits thereto, and other documents in connection therewith, with the
  Securities and Exchange Commission, granting unto said attorneys-in-fact and agents full power and
  authority to be done in and about the premises, as fully to all intents and purposes as he or she
  might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and
  agents, or their substitutes, may lawfully do or cause to be done by virtue hereof.
  
  
  <P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pursuant to the requirements of the Securities Act of 1933, as amended, this Registration
  Statement has been signed by the following persons in the capacities and on the dates indicated:
  
  <DIV align="center">
  <TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
  <!-- Begin Table Head -->
  <TR valign="bottom">
      <TD width="35%">&nbsp;</TD>
      <TD width="2%">&nbsp;</TD>
      <TD width="50%">&nbsp;</TD>
      <TD width="2%">&nbsp;</TD>
      <TD width="10%">&nbsp;</TD>
  </TR>
  <TR style="font-size: 8pt" valign="bottom">
      <TD nowrap align="left" style="border-bottom: 1px solid #000000">Signature</TD>
      <TD>&nbsp;</TD>
      <TD nowrap align="center" style="border-bottom: 1px solid #000000">Title</TD>
      <TD>&nbsp;</TD>
      <TD nowrap align="center" style="border-bottom: 1px solid #000000">Date</TD>
  </TR>
  
  <!-- End Table Head -->
  <!-- Begin Table Body -->
  <TR valign="bottom">
      <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
      <TD>&nbsp;</TD>
      <TD align="left" valign="top">&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD align="center" valign="top">&nbsp;</TD>
  </TR>
  <TR valign="bottom">
  
  <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/
  Paul J. van der Wansem</DIV></TD>
      <TD>&nbsp;</TD>
      <TD align="left" valign="top">&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD align="center" valign="top">&nbsp;</TD>
  </TR>
  <TR valign="bottom">
      <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px"><DIV style="border-bottom: 1px solid #000000; font-size: 1px">&nbsp;</DIV>
  <FONT style="font-variant: SMALL-CAPS">Paul J. van der Wansem</FONT>
  </DIV></TD>
      <TD>&nbsp;</TD>
      <TD align="left" valign="top">Chairman, Chief Executive Officer
  and Director
  </TD>
      <TD>&nbsp;</TD>
      <TD align="center" valign="top">June&nbsp;17, 2005</TD>
  </TR>
  <TR valign="bottom">
      <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
      <TD>&nbsp;</TD>
      <TD align="left" valign="top">&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD align="center" valign="top">&nbsp;</TD>
  </TR>
  <TR valign="bottom">
  
  <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/
  Thomas P. Kealy</DIV></TD>
      <TD>&nbsp;</TD>
      <TD align="left" valign="top">&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD align="center" valign="top">&nbsp;</TD>
  </TR>
  <TR valign="bottom">
      <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px"><DIV style="border-bottom: 1px solid #000000; font-size: 1px">&nbsp;</DIV>
  <FONT style="font-variant: SMALL-CAPS">Thomas P. Kealy</FONT>
  </DIV></TD>
      <TD>&nbsp;</TD>
      <TD align="left" valign="top">Principal Financial Officer, Chief
  Accounting Officer and Corporate Controller
  </TD>
      <TD>&nbsp;</TD>
      <TD align="center" valign="top">June&nbsp;17, 2005</TD>
  </TR>
  <TR valign="bottom">
      <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
      <TD>&nbsp;</TD>
      <TD align="left" valign="top">&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD align="center" valign="top">&nbsp;</TD>
  </TR>
  <TR valign="bottom">
  
  <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/
  J. Samuel Parkhill</DIV></TD>
      <TD>&nbsp;</TD>
      <TD align="left" valign="top">&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD align="center" valign="top">&nbsp;</TD>
  </TR>
  <TR valign="bottom">
      <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px"><DIV style="border-bottom: 1px solid #000000; font-size: 1px">&nbsp;</DIV>
  <FONT style="font-variant: SMALL-CAPS">J. Samuel Parkhill</FONT>
  </DIV></TD>
      <TD>&nbsp;</TD>
      <TD align="left" valign="top">Director
  </TD>
      <TD>&nbsp;</TD>
      <TD align="center" valign="top">June&nbsp;17, 2005</TD>
  </TR>
  <TR valign="bottom">
      <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
      <TD>&nbsp;</TD>
      <TD align="left" valign="top">&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD align="center" valign="top">&nbsp;</TD>
  </TR>
  <TR valign="bottom">
      <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
      <TD>&nbsp;</TD>
      <TD align="left" valign="top">&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD align="center" valign="top">&nbsp;</TD>
  </TR>
  <TR valign="bottom">
      <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px"><DIV style="border-bottom: 1px solid #000000; font-size: 1px">&nbsp;</DIV>
  <FONT style="font-variant: SMALL-CAPS">John E. Beard</FONT>
  </DIV></TD>
      <TD>&nbsp;</TD>
      <TD align="left" valign="top">Director
  </TD>
      <TD>&nbsp;</TD>
      <TD align="center" valign="top">&nbsp;</TD>
  </TR>
  <TR valign="bottom">
      <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
      <TD>&nbsp;</TD>
      <TD align="left" valign="top">&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD align="center" valign="top">&nbsp;</TD>
  </TR>
  <TR valign="bottom">
      <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
      <TD>&nbsp;</TD>
      <TD align="left" valign="top">&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD align="center" valign="top">&nbsp;</TD>
  </TR>
  <TR valign="bottom">
      <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px"><DIV style="border-bottom: 1px solid #000000; font-size: 1px">&nbsp;</DIV>
  <FONT style="font-variant: SMALL-CAPS">Dr.&nbsp;Jeffrey Ch. Chu</FONT>
  </DIV></TD>
      <TD>&nbsp;</TD>
      <TD align="left" valign="top">Director
  </TD>
      <TD>&nbsp;</TD>
      <TD align="center" valign="top">&nbsp;</TD>
  </TR>
  <TR valign="bottom">
      <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
      <TD>&nbsp;</TD>
      <TD align="left" valign="top">&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD align="center" valign="top">&nbsp;</TD>
  </TR>
  <TR valign="bottom">
  
  <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/
  Joseph F. Wrinn</DIV></TD>
      <TD>&nbsp;</TD>
      <TD align="left" valign="top">&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD align="center" valign="top">&nbsp;</TD>
  </TR>
  <TR valign="bottom">
      <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px"><DIV style="border-bottom: 1px solid #000000; font-size: 1px">&nbsp;</DIV>
  <FONT style="font-variant: SMALL-CAPS">Joseph F. Wrinn</FONT>
  </DIV></TD>
      <TD>&nbsp;</TD>
      <TD align="left" valign="top">Director
  </TD>
      <TD>&nbsp;</TD>
      <TD align="center" valign="top">June&nbsp;17, 2005</TD>
  </TR>
  <TR valign="bottom">
      <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
      <TD>&nbsp;</TD>
      <TD align="left" valign="top">&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD align="center" valign="top">&nbsp;</TD>
  </TR>
  <TR valign="bottom">
  
  <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/
  G. Mead Wyman</DIV></TD>
      <TD>&nbsp;</TD>
      <TD align="left" valign="top">&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD align="center" valign="top">&nbsp;</TD>
  </TR>
  <TR valign="bottom">
      <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px"><DIV style="border-bottom: 1px solid #000000; font-size: 1px">&nbsp;</DIV>
  <FONT style="font-variant: SMALL-CAPS">G. Mead Wyman</FONT>
  </DIV></TD>
      <TD>&nbsp;</TD>
      <TD align="left" valign="top">Director
  </TD>
      <TD>&nbsp;</TD>
      <TD align="center" valign="top">June&nbsp;17, 2005</TD>
  </TR>
  <!-- End Table Body -->
  </TABLE>
  </DIV>
  
  
  <P align="center" style="font-size: 10pt">&nbsp;
  </DIV>
  
  </BODY>
  </HTML>
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metadata_filer: {"company-data": {"conformed-name": "BTU INTERNATIONAL INC", "cik": "0000840883", "assigned-sic": "3559", "irs-number": "042781248", "state-of-incorporation": "DE", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "S-8", "act": "33", "file-number": "333-125924", "film-number": "05903695"}, "business-address": {"street1": "23 ESQUIRE ROAD", "city": "NORTH BILLERICA", "state": "MA", "zip": "01862", "phone": "5086674111"}, "mail-address": {"street1": "23 ESQUIRE ROAD", "city": "NORTH BILLERICA", "state": "MA", "zip": "01862"}, "former-company": {"former-conformed-name": "BTU CORP", "date-changed": "19881109"}}
text: sv8
  Table of Contents
  As filed with the Securities and Exchange Commission on June 17, 2005
  Registration No. 333-_______
  UNITED STATES
  SECURITIES AND EXCHANGE COMMISSION
  Washington, D.C. 20549
  __________________________
  FORM S-8
  REGISTRATION STATEMENT
  UNDER
  THE SECURITIES ACT OF 1933
  __________________________
  BTU International, Inc.
  (Exact name of registrant as specified in its charter)
  Delaware
  04-2781248
  (State or other jurisdiction
  of incorporation or organization)
  (I.R.S. Employer
  Identification No.)
  23 Esquire Road
  North Billerica, MA 01862-2596
  (978) 667-4111
  (Address of principal executive offices, including zip code)
  BTU International, Inc. 2003 Equity Incentive Plan
  (Full title of the plan)
  Paul J. van der Wansem
  Chairman and Chief Executive Officer
  BTU International, Inc.
  23 Esquire Road
  North Billerica, MA 01862-2596
  (978) 667-4111
  (Name, address and telephone number, including area code, of agent for service)
  Please send copies of all communications to:
  Keith F. Higgins, Esq.
  Ropes & Gray LLP
  One International Place
  Boston, MA 02110
  617-951-7000
  617-951-7050 (facsimile)
  CALCULATION OF REGISTRATION FEE
  Proposed Maximum
  Proposed Maximum
  Title of Each Class of
  Amount to be
  Offering Price Per
  Aggregate Offering
  Amount of
  Securities to be Registered
  Registered (1)
  Share(1)
  Price(1)
  Registration Fee
  Common Stock, $.01
  par value per share
  700,000 shares
  $
  3.68
  $
  2,445,129
  $
  287.79
  (1)
  Of the 700,000 shares to be registered hereunder, 348,450 shares are subject to outstanding
  options and the registration fee for these shares have been calculated based on the actual
  exercise price. The offering price of the remaining 351,550 shares not subject to options on
  the date hereof of $3.68 per share has been estimated solely for the purpose of determining
  the registration fee pursuant to Rule 457(c) and 457(h)(1) on the basis of the average high
  and low prices of the common stock, par value $.01 per share, as reported on the Nasdaq
  National Market on June 15, 2005.
  (2)
  Pursuant to Rule 416(a) under the Securities Act of 1933, this registration statement also
  covers such additional shares of Common Stock as may issued to prevent dilution from stock
  splits, stock dividends and similar transactions.
  TABLE OF CONTENTS
  PART I            INFORMATION REQUIRED IN THE SECTION 10(a) PROSPECTUS
  PART II            INFORMATION REQUIRED IN THE REGISTRATION STATEMENT
  Item 3. Incorporation of Documents by Reference.
  Item 4. Description of Securities.
  Item 5. Interests of Named Experts and Counsel.
  Item 6. Indemnification of Directors and Officers.
  Item 7. Exemption From Registration Claimed.
  Item 8. Exhibits.
  Item 9. Undertakings.
  SIGNATURES
  EX-5.1 Consent of Ropes & Gray LLP
  EX-23.1 Consent of Independent Public Accountants
  Table of Contents
  PART I
  INFORMATION REQUIRED IN THE SECTION 10(a) PROSPECTUS
  Note: The document(s) containing the information required by Item 1 of this Form S-8 and the
  statement of availability of information of BTU International, Inc. (the "Registrant"), and other
  information required by Item 2 of this Form will be sent or given to employees as specified by Rule
  428 under the Securities Act of 1933, as amended (the "Securities Act"). In accordance with Rule
  428 and the requirements of Part I of Form S-8, such documents are not being filed with the
  Securities and Exchange Commission (the "Commission") either as part of this Registration Statement
  or as prospectuses or prospectus supplements pursuant to Rule 424. The Registrant shall maintain a
  file of such documents in accordance with the provisions of Rule 428. Upon request, the Registrant
  shall furnish to the Commission or its staff a copy or copies of any or all of the documents
  included in such file.
  PART II
  INFORMATION REQUIRED IN THE REGISTRATION STATEMENT
  Item 3. Incorporation of Documents by Reference.
  The Registrant hereby incorporates the following documents herein by reference:
  (a)
  The Registrant's latest annual report on Form 10-K for the fiscal year ended
  December 31, 2004, filed with the Commission pursuant to the Securities Exchange Act of
  1934, as amended (the "Exchange Act"), on March 31, 2005.
  (b)
  The Registrant's quarterly report on Form 10-Q for the period ended April 4,
  2005, filed with the Commission pursuant to the Exchange Act, on May 18, 2005.
  (c)
  The description of the Common Stock, $.01 par value per share, contained in
  the Registrant's Registration Statement on Form 8-A (File No. 000-17297), filed with
  the Commission pursuant to Section 12 of the Exchange Act on November 15, 1988, as most
  recently revised by the Registrant's Form 8-A/A on February 7, 1989.
  All documents subsequently filed by the Registrant pursuant to Sections 13(a), 13(c), 14 and
  15(d) of the Exchange Act, prior to the filing of a post-effective amendment to this Registration
  Statement that indicates that all securities offered have been sold or which deregisters all
  securities then remaining unsold, shall be deemed to be incorporated herein by reference from the
  date of filing of such documents.
  Item 4. Description of Securities.
  Not applicable.
  Item 5. Interests of Named Experts and Counsel.
  Not applicable.
  Item 6. Indemnification of Directors and Officers.
  The Registrant is incorporated under the laws of the State of Delaware. Section 145 ("Section
  145") of the General Corporation Law of the State of Delaware, as the same exists or may hereafter
  be amended (the "General
  Table of Contents
  Corporation Law"), inter alia, provides that a Delaware corporation may indemnify any persons
  who were, are or are threatened to be made, parties to any threatened, pending or completed action,
  suit or proceeding, whether civil, criminal, administrative or investigative (other than an action
  by or in the right of such corporation), by reason of the fact that such person is or was an
  officer, director, employee or agent of such corporation, or is or was serving at the request of
  such corporation as a director, officer, employee or agent of another corporation or enterprise.
  The indemnity may include expenses (including attorneys' fees), judgments, fines and amounts paid
  in settlement actually and reasonably incurred by such person in connection with such action, suit
  or proceeding, provided such person acted in good faith and in a manner he reasonably believed to
  be in or not opposed to the corporation's best interests and, with respect to any criminal action
  or proceeding, had no reasonable cause to believe that his conduct was illegal. In addition, the
  statutes of Delaware contain provisions to the general effect that any director shall in the
  performance of his duties be fully protected in relying in good faith upon the books of account or
  records of the corporation or statements prepared by any official of the corporation.
  Section 145 further authorizes a corporation to purchase and maintain insurance on behalf of
  any person who is or was a director, officer, employee or agent of the corporation, or is or was
  serving at the request of the corporation as a director, officer, employee or agent of another
  corporation or enterprise, against any liability asserted against him and incurred by him in any
  such capacity, arising out of his status as such, whether or not the corporation would otherwise
  have the power to indemnify him under Section 145.
  The Registrant's amended and restated certificate of incorporation provides that the
  registrant shall indemnify its directors and officers to the full extent permitted by the laws of
  the State of Delaware. The Registrant's restated certificate of incorporation provides that the
  registrant's directors and officers shall not be liable to the registrant or its stockholders for
  monetary damages for breach of fiduciary duty as a director, except to the extent that the
  exculpation from liabilities is not permitted under the General Corporation Law as in effect at the
  time such liability is determined. The Registrant's By-laws provide that the Registrant shall
  indemnify its directors and officers to the extent permitted by the General Corporation Law of the
  State of Delaware.
  All of the Registrant's directors and officers are covered by insurance policies maintained by
  the Registrant against specified liabilities for actions taken in their capacities as such,
  including liabilities under the Securities Act of 1933, as amended.
  Item 7. Exemption From Registration Claimed.
  Not applicable.
  Item 8. Exhibits.
  Exhibit
  4.1
  2003 Equity Incentive Plan (previously filed as Appendix A to the Schedule 14A,
  filed on April 14, 2003, File No. 000-17297).
  4.2
  Restated Certificate of Incorporation of BTU International, Inc. (previously
  filed as Exhibit 3.0 to the Quarterly Report on Form 10-Q for the period ended July 1,
  2001, filed on August 15, 2001, File No. 0-17297).
  -2-
  Table of Contents
  4.3
  By-laws of BTU International, Inc. (previously filed as Exhibit 3.3 to the
  Registration Statement on Form S-1 filed on October 7, 1988, File No. 033-24882).
  5.1
  Opinion of Ropes & Gray LLP, filed herewith.
  23.1
  Consent of Vitale, Caturano & Company, P.C., filed herewith.
  23.2
  Consent of Ropes & Gray LLP, filed herewith (included in the opinion filed as Exhibit 5.1).
  24.1
  Powers of Attorney, filed herewith (included on the signature page of this
  Registration Statement under the caption "Power of Attorney").
  Item 9. Undertakings.
  (a)
  The undersigned Registrant hereby undertakes:
  (1)
  To file, during any period in which offers or sales are being made, a
  post-effective amendment to this Registration Statement:
  (i)
  To include any prospectus required by Section 10(a)(3) of the
  Securities Act of 1933, as amended (the "Securities Act");
  (ii)
  To reflect in the prospectus any facts or events arising
  after the effective date of the Registration Statement (or the most
  recent post-effective amendment thereof) which, individually or in the
  aggregate, represent a fundamental change in the information set forth
  in the Registration Statement. Notwithstanding the foregoing, any
  increase or decrease in volume of securities offered (if the total
  dollar value of securities offered would not exceed that which was
  registered) and any deviation from the low or high end of the estimated
  maximum offering range may be reflected in the form of a prospectus
  filed with the Commission pursuant to Rule 424(b) if, in the aggregate,
  the changes in volume and price represent no more than 20 percent
  change in the maximum aggregate offering price set forth in the
  "Calculation of Registration Fee" table in the effective registration
  statement;
  (iii)
  To include any material information with respect to the plan
  of distribution not previously disclosed in the Registration Statement
  or any material change to such information in the Registration
  Statement;
  provided, however
  , that paragraphs (a)(1)(i) and (a)(1)(ii) above shall not apply if
  the information required to be included in a post-effective amendment by those
  paragraphs is contained in periodic reports filed with or furnished to the
  Commission by the Registrant pursuant to Section 13 or 15(d) of the Exchange Act
  that are incorporated by reference in the Registration Statement.
  (2)
  That, for the purpose of determining any liability under the
  Securities Act, each such post-effective amendment shall be deemed to be a new
  registration statement relating to
  -3-
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  the securities offered therein, and the offering of such securities at that
  time shall be deemed to be the initial
  bona fide
  offering thereof.
  (3)
  To remove from registration by means of a post-effective amendment any
  of the securities being registered which remain unsold at the termination of
  the offering.
  (b)
  The undersigned Registrant hereby undertakes that, for purposes of determining
  any liability under the Securities Act, each filing of the Registrant's annual report
  pursuant to Section 13(a) or 15(d) of the Exchange Act (and, where applicable, each
  filing of an employee benefit plan's annual report pursuant to Section 15(d) of the
  Exchange Act) that is incorporated by reference in the Registration Statement shall be
  deemed to be a new Registration Statement relating to the securities offered therein,
  and the offering of such securities at that time shall be deemed to be the initial
  bona
  fide
  offering thereof.
  (c)
  Insofar as indemnification for liabilities arising under the Securities Act
  may be permitted to directors, officers and controlling persons of the Registrant
  pursuant to the foregoing provisions, or otherwise, the Registrant has been advised
  that in the opinion of the Commission such indemnification is against public policy as
  expressed in the Securities Act and is, therefore, unenforceable. In the event that a
  claim for indemnification against such liabilities (other than the payment by the
  Registrant of expenses incurred or paid by a director, officer or controlling person of
  the Registrant in the successful defense of any action, suit or proceeding) is asserted
  by such director, officer or controlling person in connection with the securities being
  registered, the Registrant will, unless in the opinion of its counsel the matter has
  been settled by controlling precedent, submit to a court of appropriate jurisdiction
  the question whether such indemnification by it is against public policy as expressed
  in the Securities Act and will be governed by the final adjudication of such issue.
  -4-
  Table of Contents
  SIGNATURES
  Pursuant to the requirements of the Securities Act of 1933, the Registrant certifies that it
  has reasonable grounds to believe that it meets all of the requirements for filing on Form S-8 and
  has duly caused this Registration Statement to be signed on its behalf by the undersigned,
  thereunto duly authorized, in the North Billerica of The Commonwealth
  of Massachusetts, on this 17th
  day of June, 2005.
  BTU International, Inc.
  By:
  /s/ Paul J. van der Wansem
  Name: Paul J. van der Wansem
  Title: Chairman, Chief Executive
  Officer and Director
  Table of Contents
  SIGNATURES AND POWER OF ATTORNEY
  Each person whose signature appears below constitutes and appoints Paul J. van der Wansem and
  Thomas P. Kealy, and each of them singly, his or her true and lawful attorney-in-fact and agent
  with full power of substitution and resubstitution, for him or her and in his or her name, place
  and stead, in any and all capacities, to sign any and all amendments (including post-effective
  amendments) to this Registration Statement on Form S-8 to be filed by BTU International, Inc., and
  to file the same, with all exhibits thereto, and other documents in connection therewith, with the
  Securities and Exchange Commission, granting unto said attorneys-in-fact and agents full power and
  authority to be done in and about the premises, as fully to all intents and purposes as he or she
  might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and
  agents, or their substitutes, may lawfully do or cause to be done by virtue hereof.
  Pursuant to the requirements of the Securities Act of 1933, as amended, this Registration
  Statement has been signed by the following persons in the capacities and on the dates indicated:
  Signature
  Title
  Date
  /s/
  Paul J. van der Wansem
  Paul J. van der Wansem
  Chairman, Chief Executive Officer
  and Director
  June 17, 2005
  /s/
  Thomas P. Kealy
  Thomas P. Kealy
  Principal Financial Officer, Chief
  Accounting Officer and Corporate Controller
  June 17, 2005
  /s/
  J. Samuel Parkhill
  J. Samuel Parkhill
  Director
  June 17, 2005
  John E. Beard
  Director
  Dr. Jeffrey Ch. Chu
  Director
  /s/
  Joseph F. Wrinn
  Joseph F. Wrinn
  Director
  June 17, 2005
  /s/
  G. Mead Wyman
  G. Mead Wyman
  Director
  June 17, 2005