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<H1>PR Hoffman Machine Products Inc.</H1><font size=4><b>Graphical Site Map - </b><font size=2>[Click Photo or Link]</font></font><br><font size=1><a href="prhoffman-sm.htm"><font color="#ffffff">PR Hoffman's Site Map - Text Format</font></a></font><br><b><a href="news/index.htm"><i>~ NEWS ~</i></a><br><a href="4.html">Contact PR Hoffman<br><br><img src="prh_employees-square.gif" border=0 align=left ALT="Contact PR Hoffman Machine Products for your D/S machine, lapping & polishing consumables, and custom laser cutting"></a></b>
<a href="http://www.prhoffman.com/video"><img src="news/2007_SW-Prod_Animation.gif" border=0  align=right width=546 Alt="Click to View Movie"><br><font size=2><br>
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Watch a 3-minute video about<br>PR Hoffman Machine Products</font></a> </center>


<p class=MsoNormal style='text-align:justify'>PR Hoffman planetary double sided lapping and polishing machines offer precise control.  The unique <a onClick="window.open('','PRHoff','resizable=no,width=350,height=480,left=100,top=100')" target="PRHoff" href="threeway.htm">three-way</a> series of machines are especially suited for the processing of thin and fragile substrates.   The P.R. Hoffman  <a
href="http://www.prhoffman.com/Servo_RS/"><img width=85 height=15
src="ServoRSs.gif" border=0 alt="Servo_RS is a Trademark for PR Hoffman's line of Precision Double-Sided planetary velocity servomotor Lapping and Polishing Machines."></a> models <a href="Servo_RS/index.htm">1500, 1900, 3100 and 5400</a> are capable of asymmetrical and symmetrical material removal.   This family of machines uses velocity servomotors to precisely control the three-way planetary motions as well as a servomotor for precise control of down force.<br><br>

<B><FONT COLOR="#002288" SIZE=+3>Double-Side<font size=-5> <br></font>Lapping & Polishing Machines</FONT></b><hr color="#990080" width="375" align=left> </p>

Don't wait for the next generation of machines, the next generation is already here with PR Hoffman's field proven line of double sided lapping and polishing machines.</P>
<P><a href="machine.htm"><font color=black><b>Double Sided Lapping / Polishing Machines:</b></font></a></P>
<P align="center"><A HREF="5400/index.htm"><img src="5400dcol.gif" width=92 height=123 align="right" ALT="PR Hoffman Machine Products, double sided lapping, double sided lapping and polishing machines" BORDER=0></A><A HREF="pr151931.html"><img src="1900col.gif" width=68 height=107 align=left alt="1500 lapping machine" BORDER=0><img src="1900col.gif" width=74 height=107 BORDER=0><img src="white.gif" width=90 height=20 BORDER=0><img src="3100col.gif" width=87 height=107 BORDER=0></A>
</P><A HREF="lapping-machines_PR-1.htm"><img src="pr1-new.jpg" width=140 height=107 align="Right" BORDER=0></a><IMG SRC="white.gif" width=20 height=107 align=left>
<UL><FONT SIZE=-1>
<LI><a href="machine.htm">Double Sided Lapping Machines:</a></LI>
<ul><LI><A HREF="pr12.html">PR-1 & PR-2</A> , <a href="pr1-85t.htm">PR1-85T</a></li>
<LI><A HREF="pr151931.html">Models: &nbsp; 1500, &nbsp; 1900, &nbsp; & &nbsp;3100</a></LI>
<LI><A HREF="5400/index.htm">Model: &nbsp; 5400 <font color=white>- speedfam_20B-5L1.htm</font></a>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<a href="5400/index.htm"><img src="white.gif" width=1 height=1 border=0></a><a href="double-sided-lapping-machine-3100.htm"><img src="white.gif" width=1 height=1 border=0></a><a href="double-sided-lapping-machine-1900.htm"><img src="white.gif" width=1 height=1 border=0></a><a href="double-sided-lapping-machine-1500.htm"><img src="white.gif" width=1 height=1 border=0></a><a href="lapping_machine.htm"><img src="white.gif" width=1 height=1 border=0></a><a href="lapping_machines.htm"><img src="white.gif" width=1 height=1 border=0></a></LI>
</ul>
<LI><A HREF="capa.html">Lapping Machine Capacities</a></li>
<LI><A HREF="http://www.doublesidedlapping.info">Double-sided LAPPING info</A></LI>
<LI><A HREF="http://www.doublesidedpolishing.info">Double-sided POLISHING info</A></LI>
<LI><a href="news/machine_shop_guide_0999_p2.htm">PR Hoffman Lapping Machines featured in <b>Machine Shop Guide</b></a></LI>


</FONT></UL>
<br><CENTER><a href="http://prhoffman.com/news/NewsRelease20011114.htm">BREAKTHROUGH PROCESS ANNOUNCEMENT</A></CENTER>
</P><br><br>

<P>
PR Hoffman has versatile manufacturing capabilities which enable us to manufacture lapping & polishing carriers to fit any customer specifications. Stock materials include spring steel, steel with molded plastic inserts, Lamitex, PVC, Polycarbonate, vinyl, and phenolic.<br>
<a href="news/speedfam-9b.htm"><img src="carrier-r.gif" width=112 height=112 border=0 align=right alt="SpeedFam 9B Carriers"></a><a href="1.html"><img src="carhedi.gif" width=396 height=108 align=left border=0></a><img src="white.gif" width=20 height=112><br><a href="lapping-carriers.htm"><font color=black><b>Lapping Carriers (also called Workholders)</b></font></a></P>
<ul><font size=-1>
<LI><A HREF="http://www.prhoffman.com/lapping-carriers.htm">Double sided lapping and polishing carriers</A></LI><ul>
<LI><A HREF="http://www.prhoffman.com/lapping-carrier.htm">Carrier Info</A></LI>
<LI><A HREF="http://www.prhoffman.com/1.html">Steel, lamitex, G10, FR4, lexan, polycarbonate, polyethelyene, PVC, vinyl, & phenolic</A></LI>
<LI><A HREF="http://www.prhoffman.com/insert-carriers.htm">PR Hoffman 'Insert Carriers' for Wafer Processing</A><A HREF="http://www.prhoffman.com/news/insertcarriers.htm"><img src="white.gif" alt="INSERT CARRIERS FOR SEMICONDUCTOR SILICON WAFERS"width=1 height=1 border=0></a></LI>
<LI><a href="polishingcarriers.htm">POLISHING CARRIERS</A><img src="white.gif" alt="POLISHING CARRIERS - HARD DISK / GaAs - IIVI IIIV SILICON WAFERS"width=10 height=1 border=0><A HREF="lappingcarriers.htm"> </a></LI>
<LI><a href="lapping-carriers-quote.htm">Lapping Carrier Quote Request form</a></li>
<br><br>
<a href="http://www.prhoffman.com/literature/PTC.pdf"><img src="PTC-square.gif" alt="PTC Precision Insert Carrier Brochure - .pdf" border=0><li> NEW - Precision Thickness <b>PTC</b><sup><font size=-1>®</font></sup> Insert Carriers</a></li>
<li>|<u> <a href="../cn/PTC.pdf">中国</a> | <a href="../jp/PTC.pdf">日本</a> | <a href="../fr/PTC.pdf"> Français </a> | <a href="../kr/PTC.pdf">한국어</a> </u>|</li>
</ul>
</font></ul>
<br><a href="news/speedfam-9b.htm"><img src="white.gif", border=0 width=1 height=1 alt="PR Hoffman lowers pricing on Speedfam-9B / Lapmaster LSP9 Carriers"></a>

<P>PR Hoffman also manufactures waxless mount assemblies (to 600mm OD) for single-side polishing of silicon wafers of all diameters.  These templates use a buffed porous mounting material that, when wet, produces the necessary adhesion to hold the wafer in place (while allowing the wafer to rotate in the pocket). To ensure that the wafer stays in place, we add an Lamitex carrier which has been milled to your specification, backed with a non-compressible film and a pressure-sensitive adhesive. The final product is sealed in one-load packages to keep templates clean and uncontaminated until use.<br>
<a href="2.html"><img src="semhed.gif" width=378 height=132 border=0 align=left></a>
<a href="polishing-templates.htm"><img src="image17.gif" width=123 height=141 border=0 align=right ALT="Waxless Mount Polishing Templates for Single Side Wafer Polishing"></a><img src="white.gif" width=20 height=141><br>

<a href="http://www.prhoffman.com/technical/conditioning-brushes.htm"><img src="technical/brushcar.jpg" border=0 width=123 height=128 align=right></a>

<a href="semiconductor-polishing-templates.htm"><font color=black><b>Semiconductor Polishing Templates</b></font></a></P>
<UL><FONT SIZE=-1>
<LI><a href="2.html">Semiconductor Polishing Templates</a></LI>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<a href="semiconductor-wafer.htm"><img src="white.gif" width=1 height=1 border=0></a><a href="saw-wafers.htm"><img src="white.gif" width=1 height=1 border=0></a><a href="semi-wafer.htm"><img src="white.gif" width=1 height=1 border=0></a><a href="optical-polishing-machine.htm"><img src="white.gif" width=1 height=1 border=0><a href="optical-lapping-machines.htm"><img src="white.gif" width=1 height=1 border=0></a></a><a href="85t-capacity.htm"><img src="white.gif" width=1 height=1 border=0></a><a href="threeway.htm"><img src="white.gif" width=1 height=1 border=0></a><a href="fourway.htm"><img src="white.gif" width=1 height=1 border=0></a><br><br>
<li><a href="technical/conditioning-brushes.htm">Conditioning Brushes for  Double & Single Side Polishers</a></li>
</font></UL>
<p> &nbsp; </p>


<P><P><A HREF="http://www.CustomLaserCutParts.com/index.htm"><font color=black>Laser Cut Parts</font></A> are custom manufactured by PR Hoffman for customers requiring high-precision thin steel components for prototype and production runs.  We have been custom designing Laser-cut parts for over 10 years and have several qualified designer/programmers who can quickly turn your part-files into finished parts.<br><a href="http://www.prhoffman.com/laser/index.htm"><img src="laser/custom-laser-cut-parts.jpg" width=200 align=right border=0 ALT="Custom Laser Cut Parts"></a><br>
<B><FONT COLOR="#002288" SIZE=+3>Custom<br>Laser-Cut Parts</FONT></b><hr color="#990080" width="375" align=left>
</p><a href="http://laser.prhoffman.com/index.htm"><font color=black><b>Laser-cut Parts</b></font></a> - High Precision, thin steel 0.005" - 0.125" thick - contract manufactured to your drawings.<br>

<UL><FONT SIZE=-1>
<LI><a href="laser/laser-cut.wmv">Laser-cutting VIDEO</a></LI>
<li><a href="laser/sample.htm">Sample &quot;Laser Cut&quot; Parts</a></li>
</font></UL>

<p> &nbsp; </p>


<P>PR Hoffman manufactures lapping and polishing plates for PR Hoffman model double-side machines. All replacement parts meet or exceed original equipment specifications, for trouble-free operation.  Plates are available in Gray Iron, Ductile Iron, and Stainless Steel with or without grooves.<br><br>
<a href="3.html"><img src="parthed.gif" width=378 height=72 border=0 align=left></a><a href="lapping-plate.htm"><img src="part22.gif" width=150 height=144 border=0 align=right></a><img src="white.gif" width=20 height=90><br><a href="3.html"><font color=black><b>Parts, Plates & Gears</b></font></a></P>

<UL><FONT SIZE=-1>
<LI><a href="3.html">Lapping Plates, Conditioning Gears, and Parts</a></LI>
<li><a href="prhoffman-parts.htm">PR-1 &nbsp & &nbsp; PR-2 - Replacment parts</a></li>
</font></UL>
<p align="center"><a href="news/index.htm">PR Hoffman News Index</a>
<br><a href="links.htm">Industry Links</a></p>
<p><a href="literature/index.htm">Download/Request NEW Catalog<br><img src="literature/Catalog.gif" border=1 align=left alt="Request NEW Catalog" width="174"></a>  <a href="news/shows.htm"><img src="tradeshows.jpg" align=right border=0 alt="TRADE SHOWS:  SEMICON WEST, EUROPA, CHINA, JAPAN, PHOTONICS WEST, OPTOFAB-2005, CLEO, etc."></a></p>


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<!-- PR Hoffman Machine Products Site Index (c) 1999-2009 - by evansd@prhoffman.com -->
<P><img src="white.gif" width=40 height=63 align="left"><a href="index.html"><IMG SRC="http://www.prhoffman.com/image14.gif" WIDTH=256 HEIGHT=63 ALIGN=Left ALT="P R Hoffman Site Index " border=0></a><b>&nbsp;&nbsp;<br><font face="arial,helvetica" size="-1"> &nbsp;&nbsp;1517 Commerce Ave., Carlisle, PA &nbsp;&nbsp;17015 <br>&nbsp;&nbsp;Phone: +1 (717) 243-9900 &nbsp;&nbsp;&nbsp;&nbsp; Fax: +1 (717) 243-4542<br> &nbsp;&nbsp;Email: &nbsp;<a href="mailto:prhoff@prhoffman.com">prhoff@prhoffman.com</a> </font></b></P>
An <a href="amtech-systems.htm">Amtech Systems, Inc.</a> Company.
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