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<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D">If your saw waste does not go to water treatment then you need to figure out how to trap the As in the water waste, most localities do not want that in the water. How waste goes to water treatment
plant.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D">Rick<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt">Richard H. Morrison<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Principal Member of the Technical Staff<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Draper<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">555 Technology Square<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:11.0pt">From:</span></b><span style="font-size:11.0pt"> labnetwork-bounces@mtl.mit.edu [mailto:labnetwork-bounces@mtl.mit.edu]
<b>On Behalf Of </b>Nibarger, John (Fed)<br>
<b>Sent:</b> Wednesday, July 03, 2019 5:22 PM<br>
<b>To:</b> labnetwork@mtl.mit.edu<br>
<b>Subject:</b> [labnetwork] Dicing GaAs wafers<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Dear Colleagues,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">We have some users who would like to use a dicing saw that is currently used to cut glass and sapphire to cut GaAs wafers as well. We’re worried about the safety aspects of both tool contamination and dealing
with the waste water effluent. The dicing saw that we are using is a DISCO DAD3220. Does anyone have any thoughts or experience on this?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Thanks,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">John<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:black">John P. Nibarger, Ph.D.</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:black">Manager, Boulder Micro-fabrication Facility</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:black">Microfabrication Group Leader (687.10)</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:black">National Institute of Standards and Technology</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:black">325 Broadway, MS 687.10</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:black">Boulder, CO 80305</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:black">303-497-4575 (phone)</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:black">303-497-3042 (fax)</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:black"><a href="mailto:john.nibarger@nist.gov">john.nibarger@nist.gov</a></span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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