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Dear Jayer,</div>
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Our lab has been purchasing masks from Advance Reproductions Corp, and we are pleased with them. Their website is:</div>
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<a href="http://www.advancerepro.com/" target="_blank" id="OWA0313060f-35fc-22b6-dfe5-6ab28706ed6c" class="OWAAutoLink">http://www.advancerepro.com/</a>. </div>
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The emails to their customer service representatives are: </div>
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d.robinson@advancerepro.com and m.nadeem@advancerepro.com.</div>
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The phone number is:</div>
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(978) 685-2991</div>
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They are located in Andover, Massachusetts. </div>
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A 4 X 4 X 0.090 soda lime coated with chrome cost us $450. This is pricey compared to writing one yourself on the DWL with a blank mask plate, yet it is worth it for us because the improved results are evident in our devices. </div>
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<div class="elementToProof">The specs they can achieve are 0.75 um for the smallest dimension</div>
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<div class="elementToProof">The critical dimension tolerance is +/-0.15 um. </div>
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Glass sizes range from 3″ to 32″</li><li style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; font-weight: 500; color: rgb(0, 0, 0); margin: 0px;">
<div class="elementToProof">Substrate materials: quartz, fused silica, soda lime, borosilicate.</div>
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Glass coatings: chrome, iron oxide, aluminum, titanium, gold, and emulsion</li><li style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; font-weight: 500; color: rgb(0, 0, 0); margin: 0px;">
Plate thickness: .020″ to .400″ (10mm)</li></ul>
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I hope this helps you and the rest of the labnetwork community. </div>
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Very Respectfully,</div>
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Oles</div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> labnetwork <labnetwork-bounces@mtl.mit.edu> on behalf of Thomas Daunais <tdaunais@hawksemiconductor.com><br>
<b>Sent:</b> Tuesday, March 4, 2025 7:49 PM<br>
<b>To:</b> Prashant Srinivasan <prashant@ucsb.edu><br>
<b>Cc:</b> labnetwork@mtl.mit.edu <labnetwork@mtl.mit.edu><br>
<b>Subject:</b> Re: [labnetwork] Photomask Manufacturing Companies</font>
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<div dir="ltr">Jim at Photomask Portal has done exceptional work for us for many years. I couldn't recommend him enough after many other vendors have let us down.
<div><a href="https://www.photomaskportal.com/" originalsrc="https://www.photomaskportal.com/">PHOTOMASK PORTAL - We Help You Make Masks</a><br>
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<div dir="ltr" class="x_gmail_attr">On Tue, Mar 4, 2025 at 7:46 PM Prashant Srinivasan <<a href="mailto:prashant@ucsb.edu">prashant@ucsb.edu</a>> wrote:<br>
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<u></u>
<div><font face="Times New Roman, Times, serif">I can answer part of your question. We buy mask plates from Nanofilm for $20 - $25 /ea for 3"-5" sq Soda Lime plates. The masks are written in-house on a Heidelberg DWL 200.<br>
<a href="https://www.nanofilm.com/" originalsrc="https://www.nanofilm.com/" target="_blank">https://www.nanofilm.com/</a><br>
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<div>On 3/4/2025 9:47 AM, JAYER A FERNANDES wrote:<br>
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Hi,</div>
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I'm curious to know what service/company folks are using to make standard photomasks?</div>
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Regards</div>
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<p><span style="font-family:"trebuchet ms",sans-serif; font-size:18px; color:rgb(34,34,34)"><b>Jayer Fernandes</b></span></p>
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<b>Micro/Nano Sensors and Actuators Laboratory (MNSA) </b></div>
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<b>Department of Electrical and Computer Engineering</b></div>
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<b>University of Wisconsin - Madison</b></div>
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<pre cols="72">--
Prashant Srinivasan
Teaching Cleanroom Engineer
Electrical & Computer Engineering
University of California, Santa Barbara
Santa Barbara, California 93106
<a href="https://www.ece.ucsb.edu/department-resources/electronics-shop/tcr" originalsrc="https://www.ece.ucsb.edu/department-resources/electronics-shop/tcr" target="_blank">https://www.ece.ucsb.edu/department-resources/electronics-shop/tcr</a></pre>
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<div dir="ltr"><b>Thomas Daunais, PhD</b></div>
<div dir="ltr">Lead process engineer<br>
<div>Hawk Semiconductor LLC</div>
<div>300 W. Michigan Ave.</div>
<div>VC-2</div>
<div>Ypsilanti, MI 48197</div>
<div><a href="http://hawksemiconductor.com/" originalsrc="http://hawksemiconductor.com/" target="_blank">hawksemiconductor.com</a></div>
<div>Ph: (231) 740-2720</div>
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