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<p class="MsoNormal"><span style="font-size:11.0pt">Sumitomo Electric and JX Nippon are two top tier InP substrate manufacturers for 20+ years, and they are both located in Japan. I have purchased from both of these suppliers, and Sumitomo has been very reliable
with reasonable prices. <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"><a href="https://www.jx-nmm.com/english/products/compound_semiconductors_and_crystal_materials/inp/">https://www.jx-nmm.com/english/products/compound_semiconductors_and_crystal_materials/inp/</a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><a href="https://global-sei.com/sc/products_e/inp/">https://global-sei.com/sc/products_e/inp/</a><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">Freiberger is a German supplier that mainly makes/offers GaAs in the past, but they moved into InP and offer 3-6” InP. They may offer 2” as well if you inquire.
<a href="https://freiberger.com/en/products/inp-wafer/">https://freiberger.com/en/products/inp-wafer/</a><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">Coherent mostly sells processed chips and higher level assemblies, and Sherman is a 6” fab. Many of the other suppliers mentioned in this email chain are smaller suppliers that may not make the wafers fully
themselves. <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">Eli<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Source Sans Pro",sans-serif">Eli Weiss<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Source Sans Pro",sans-serif">MOCVD Process Engineering Manager<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Source Sans Pro",sans-serif">Stanford Nanofabrication Facility<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Source Sans Pro",sans-serif">Tel: (650) 497-1570<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Source Sans Pro",sans-serif">Email: eliweiss@stanford.edu<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt"><img border="0" width="127" height="41" style="width:1.3229in;height:.427in" id="Picture_x0020_1" src="cid:image001.png@01DB842F.F0717BA0" alt="Image"></span><span style="font-size:11.0pt"><o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><b><span style="font-size:12.0pt;color:black">From:
</span></b><span style="font-size:12.0pt;color:black">labnetwork <labnetwork-bounces@mtl.mit.edu> on behalf of Robert Breisch <robert.breisch@edwardsvacuum.com><br>
<b>Date: </b>Friday, February 21, 2025 at 5:41</span><span style="font-size:12.0pt;font-family:"Arial",sans-serif;color:black"> </span><span style="font-size:12.0pt;color:black">AM<br>
<b>To: </b>Fylypiv Oles <Oles.Fylypiv@ucf.edu><br>
<b>Cc: </b>labnetwork@mtl.mit.edu <labnetwork@mtl.mit.edu><br>
<b>Subject: </b>Re: [labnetwork] InP Wafer Suppliers<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt">Hi Oles - <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt">Coherent is a supplier of InP wafers, they produce in a number of places, but I believe Sherman, TX is their main InP manufacturing location. Their website site suggests they do offer as small as 2” diameter
wafers. Not sure if you can purchase directly or if you purchase through a distributor. <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt">Rob<o:p></o:p></span></p>
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<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><span style="font-size:12.0pt">On Feb 20, 2025, at 8:27</span><span style="font-size:12.0pt;font-family:"Arial",sans-serif"> </span><span style="font-size:12.0pt">PM, Oles Fylypiv <Oles.Fylypiv@ucf.edu> wrote:<o:p></o:p></span></p>
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<span style="font-size:12.0pt;font-family:wf_segoe-ui_normal;color:black">You don't often get email from oles.fylypiv@ucf.edu.
</span><span style="color:black"><a href="https://aka.ms/LearnAboutSenderIdentification"><span style="font-size:12.0pt;font-family:wf_segoe-ui_normal">Learn why this is important</span></a></span><span style="font-size:12.0pt;font-family:wf_segoe-ui_normal;color:black">
</span><span style="font-size:12.0pt;font-family:wf_segoe-ui_normal"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Dear All,<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">I hope you are well. I'm reaching out to ask for indium phosphide suppliers. Due to restrictions from the Chinese government, InP wafers cannot be exported now. Does anyone know any suppliers or
distributors of InP blanks (say 2") that would not be affected by this problem?<br>
<br>
Very Respectfully,<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Oles<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">PS: I know about UniversityWafer.com. My university needs three competitive quotes to make large-volume purchases. <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt"><o:p> </o:p></span></p>
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