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<div><span style="color: rgb(31, 73, 125); font-family: Arial, sans-serif; font-size: 10.5pt;"> ***** Seminar *****</span><br>
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<b><span style="font-size:16.0pt; color:#1F497D">Department of Electrical and Computer Engineering</span></b><span style="font-size:16.0pt; color:#1F497D"></span></p>
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<b><span style="font-size:16.0pt; color:#1F497D">Materials Engineering Program</span></b></p>
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<b><span style="font-size:14.0pt; color:#1F497D">Center for Integrated Bio and Nano Systems</span></b></p>
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<b><span style="font-size:14.0pt; color:#1F497D"> 10:00 a.m., October 9</span></b><b><span style="font-size:14.0pt; color:#1F497D">, 2020</span></b><span style="font-size:14.0pt; color:#1F497D"></span></p>
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<b><span style="font-size:14.0pt; color:#1F497D">Join Zoom Meeting</span></b><span style="font-size:10.0pt; font-family:"Tahoma","sans-serif"; color:#1F497D"></span></p>
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<b><span style="font-size:14.0pt; color:#1F497D"><a href="https://urldefense.com/v3/__https://zoom.us/j/845619943?pwd=QlZvYUV6M2dxNDkvNWxBd3F2YzdJZz09__;!!LkSTlj0I!RY36v8rc0HmWFLiTTBHvwLA0IazEOlQxdQZC1QwuRSdYLO0ZgFA27Y6PryVryUiq6I-G0w$">https://zoom.us/j/845619943?pwd=QlZvYUV6M2dxNDkvNWxBd3F2YzdJZz09</a></span></b></p>
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<b><span style="font-size:14.0pt; color:#1F497D">Meeting ID: 845 619 943</span></b></p>
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<b><span style="font-size:14.0pt; color:#1F497D">Password: 016104 </span></b></p>
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<b><span style="font-size:11.0pt; font-family:"Calibri","sans-serif"; color:#1F497D"> </span></b></p>
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<b><span style="font-size:20.0pt; color:#1F497D"></span></b><b><span style="font-size:20.0pt; color:#1F497D">Engineering Interfaces To Improve The Thermal Performance of Wide Bandgap Semiconductors<br>
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<b><span style="font-size:18.0pt; color:#1F497D">Samuel Graham </span></b></p>
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<span style="font-size:16.0pt; color:#1F497D"><span style="font-size:16.0pt; color:#1F497D">Woodruff School of Mechanical Engineering
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<span style="font-size:16.0pt; color:#1F497D">Georgia Institute of Technology </span>
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<b><span style="color:#1F497D">Abstract</span></b><span style="font-size:11.0pt; font-family:"Calibri","sans-serif"; color:#1F497D">:</span><span style="color:#1F497D"> Wide bandgap electronics are currently under development due to their potential to create
some of the most advanced RF and power electronics in the world. A key concern in their development is the control of the junction temperature during operation which is impacted by the internal device thermal resistance. To address this concern, we will discuss
advancements in thermal characterization techniques that have allowed new insights into the role of material interfaces on the thermal response of GaN and Ga2O3 electronic devices. Recent advancements in growth have shown near theoretically high values of
thermal conductivity for interfacial materials such as AlN, in excellent agreement with DFT calculations. While such high thermal conductivity substrates like AlN, SiC or diamond have promise for heat dissipation from wide bandgap materials, their integration
must be performed in a manner that limits the interfacial thermal resistance. We will discuss methods of integration that include direct growth onto high thermal conductivity substrates as well as plasma activated bonding. Finally, for power electronics,
packaging solutions for the thermal management of ultrawide bandgap devices will be presented, allowing for the future implementation of this technology. </span><span style="color:#1F497D"></span></p>
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<b><span style="color:#1F497D"><img size="32320" tabindex="-1" data-outlook-trace="F:2|T:2" src="cid:cbb6a648-15d8-4470-b12e-a3428c212247" style="max-width:100%; height:auto"><br>
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<b><span style="color:#1F497D">Short Bio</span></b><span style="color:#1F497D">: </span>
<span style="color:#1F497D">Samuel Graham is the Eugene C. Gwaltney, Jr. Professor and Chair of the Woodruff School of Mechanical Engineering at the Georgia Institute of Technology. He leads the Electronics Manufacturing and Reliability Laboratory which is
focused on the electrical and thermal characterization, packaging, and reliability of wide bandgap semiconductors, solar cells, and flexible electronics. He also holds a courtesy appointment in the School of Materials Science and Engineering at Georgia Tech,
a joint appointment with Oak Ridge National Laboratory, and is a Visiting Professor at Nagoya University in Nagoya, Japan. He is a Fellow of ASME, a member of the Engineering Sciences Research Foundation Advisory Board of Sandia National Laboratories, Air
Force Scientific Advisory Board, and the JASONs Advisory Group. <br>
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<span style="color:#1F497D"></span><span style="color:rgb(23,78,134); font-family:"Times New Roman",Times,serif"></span><span style="color:rgb(23,78,134); font-size:11pt; font-family:"Times New Roman",Times,serif">Please contact Dr.
</span><span style="color:rgb(23,78,134); font-size:11pt; font-family:"Times New Roman",Times,serif">Cunjiang Yu <cyu13@Central.UH.EDU></span><span style="color:rgb(23,78,134); font-size:11pt; font-family:"Times New Roman",Times,serif"> or Jiming Bao (jbao@uh.edu)
if you want to meet with the speaker.</span></p>
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