<div dir="ltr"><div class="gmail_default" style="font-family:verdana,sans-serif;color:#000000">Thanks Richard for the suggestion. Initially we have been targeting a film thickness of 100nm, approximately the same as the chrome stack (90nm Cr, 10nm Cr203), but may try thinner.</div><div class="gmail_default" style="font-family:verdana,sans-serif;color:#000000"><br></div><div><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div><font size="2" face="verdana, sans-serif"><font color="#000000">Thanks,</font></font></div><div><font size="2" face="verdana, sans-serif"><font color="#000000">Jim Carroll<br></font><b style="color:rgb(0,0,0)">PhotomaskPORTAL</b><font color="#000000"><br></font></font></div><div><font color="#000000"><font size="2" face="verdana, sans-serif"><i>We help you make masks</i><br><span title="Call with Google Voice"><span title="Call with Google Voice"><span title="Call with Google Voice"><span title="Call with Google Voice"><span title="Call with Google Voice"><span title="Call with Google Voice"><span title="Call with Google Voice"><span title="Call with Google Voice"><span title="Call with Google Voice"><span title="Call with Google Voice"><span title="Call with Google Voice"><span title="Call with Google Voice">(415) 448-6275</span></span></span></span></span></span></span></span></span></span></span></span></font></font></div><div></div></div><div><ul style="margin:0px;padding:0px 0px 8px;border:0px;outline:0px;font-size:11.818181991577148px;font-family:Helvetica,Arial,sans-serif;vertical-align:baseline;list-style:none;line-height:16.988636016845703px;display:table-cell;width:502.7272644042969px"><li style="margin:0px;padding:8px 12px 2px 0px;border:0px;outline:0px;font-style:inherit;font-size:11px;font-family:inherit;vertical-align:baseline;font-variant:inherit;line-height:1.2em"><dl style="margin:0px;padding:0px;border:0px;outline:0px;font-style:inherit;font-size:10.909090995788574px;font-family:inherit;vertical-align:baseline;font-variant:inherit;line-height:inherit;word-wrap:break-word"><a href="http://www.photomaskportal.com" target="_blank"><dl style="margin:0px;padding:0px;border:0px;outline:0px;font-style:inherit;font-size:10.909090995788574px;font-family:inherit;vertical-align:baseline;font-variant:inherit;line-height:inherit;word-wrap:break-word"><img src="http://www.photomaskportal.com/uploads/1/1/6/1/11617247/9425470.png" width="200" height="56"><br></dl></a></dl></li></ul></div></div></div></div></div></div></div></div></div></div><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, May 31, 2019 at 5:40 AM Morrison, Richard H., Jr <<a href="mailto:rmorrison@draper.com">rmorrison@draper.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
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<p class="MsoNormal"><span style="font-size:11pt;font-family:Calibri,sans-serif;color:rgb(31,73,125)">Here’s a crazy idea try vapor HMDS, it will react with the glass but not the Chrome and it might help. Gold does not really like to stick to glass how thick is
the film?<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt;font-family:Calibri,sans-serif;color:rgb(31,73,125)"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt;font-family:Calibri,sans-serif;color:rgb(31,73,125)">Rick<u></u><u></u></span></p>
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<p class="MsoNormal"><span style="font-size:11pt;font-family:Calibri,sans-serif;color:rgb(31,73,125)"><u></u> <u></u></span></p>
<p class="MsoNormal"><b><span style="font-size:11pt;font-family:Calibri,sans-serif">From:</span></b><span style="font-size:11pt;font-family:Calibri,sans-serif"> <a href="mailto:labnetwork-bounces@mtl.mit.edu" target="_blank">labnetwork-bounces@mtl.mit.edu</a> [mailto:<a href="mailto:labnetwork-bounces@mtl.mit.edu" target="_blank">labnetwork-bounces@mtl.mit.edu</a>]
<b>On Behalf Of </b>Jim Carroll<br>
<b>Sent:</b> Thursday, May 30, 2019 4:24 PM<br>
<b>To:</b> <a href="mailto:labnetwork@mtl.mit.edu" target="_blank">labnetwork@mtl.mit.edu</a><br>
<b>Subject:</b> [labnetwork] Gold Deposition over Chrome<u></u><u></u></span></p>
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<p class="MsoNormal"><span style="font-family:Verdana,sans-serif;color:black">Dear LabNetwork colleagues,<u></u><u></u></span></p>
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<p class="MsoNormal"><span style="font-family:Verdana,sans-serif;color:black">We are trying to add a thin film of gold over patterned chrome on a standard photomask using e-beam evaporation. We want the gold to preferentially adhere to the chrome while lifting
off the glass.<u></u><u></u></span></p>
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After a few tests, it appears that the gold sticks equally well to both the glass and chrome. Ultrasonic agitation and swabbing do not selectively remove the gold from the glass while leaving it on the chrome. Eventually, after enough pressure is applied
with a swab, the gold releases from both the glass and chrome. <u></u><u></u></span></p>
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<p class="MsoNormal"><span style="font-family:Verdana,sans-serif;color:black"><u></u> <u></u></span></p>
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<p class="MsoNormal"><span style="font-family:Verdana,sans-serif;color:black">Does anyone have a suggested approach?<br>
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<p class="MsoNormal"><span style="font-size:10pt;font-family:Verdana,sans-serif;color:black">Thanks,</span><u></u><u></u></p>
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<p class="MsoNormal"><span style="font-size:10pt;font-family:Verdana,sans-serif;color:black">Jim Carroll<br>
<b>PhotomaskPORTAL</b></span><u></u><u></u></p>
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<p class="MsoNormal"><i><span style="font-size:10pt;font-family:Verdana,sans-serif;color:black">We help you make masks</span></i><span style="font-size:10pt;font-family:Verdana,sans-serif;color:black"><br>
(415) 448-6275</span><u></u><u></u></p>
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<u></u><span style="font-size:10pt;font-family:Symbol"><span>·<span style="font:7pt "Times New Roman"">
</span></span></span><u></u><span style="font-size:8pt"><a href="http://www.photomaskportal.com" target="_blank"><span style="border:1pt solid windowtext;padding:0in;text-decoration:none"><img border="0" width="200" height="56" id="gmail-m_2176055988449474282_x0000_i1025" src="cid:16b0ea753414ce8e91" alt="Image removed by sender."></span><br>
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