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Year 2019, Volume 39 , Issue 2, Pages 111 - 119 2019-10-31

THERMAL SPREADING PERFORMANCE OF GaN-ON-DIAMOND SUBSTRATE HEMTS WITH LOCALIZED JOULE HEATING
YOĞUNLAŞMIŞ ISINMALI VE ELMAS ALTTAŞLI GAN HEMT’LERİN ISI DAĞITMA PERFORMANSI

Mohammad AZARIFAR [1] , Doğacan KARA [2] , Nazlı DÖNMEZER [3]

Abstract

Diamond is the new substrate of choice for high power/frequency AlGaN/GaN high electron mobility transistors (HEMTs). Due to its high thermal conductivity, diamond presents improvements in removing concentrated heat from the electron channel, a necessity for reliable performance of these devices. Previous thermal performance comparison studies of GaN-on-SiC and GaN-on-diamond devices are limited to devices with often large and identical heat source regions due to modeling and experimental limitations. Analytical procedure presented in this study overcome these limitations and provide a more comprehensive thermal spreading performance analysis of GaN-on-SiC and GaN-on-diamond HEMTs with localized Joule heating. Important thermal spreading factors such as thermal boundary resistance, GaN buffer layer thickness, and multifinger arrangements are also investigated in this study.
Elmas yüksek güç ve frekans AlGaN/GaN yüksek elektron mobiliteli transistörler (HEMTs) için son zamanlarda tercih edilen alttaş malzemesidir. Yüksek ısıl iletkenliği ile elmas aygıt güvenirliği için gerekli olan elektron kanalındaki yoğunlaşmış ısının dışarı taşınmasında iyileştirmeler sunar. Önceki SiC ve elmas alttaşlara sahip GaN aygıtların ısıl karşılaştırma çalışmaları deneysel ve modelleme konusundaki sınırlamalar nedeniyle büyük ve tep tip ısı kaynağına sahip aygıtlarla sınırlandırılmıştır. Bu çalışmada sunulan analitik çalışma ile bu sınırlamaların üstesinden gelerek SiC ve elmas alttaşlı ve yoğunlaşmış ısınmalı GaN aygıtların ısıl karşılaştırmalarını daha detaylı bir şekilde gerçekleştrimeye olanak sağlar. Isı dağılımına etki eden katmanlar arası ısıl dirençlerin, GaN katman kalınlıklarının ve çok sayıda parmağa sahip aygıtlardaki parmak sayılarının etkileri bu çalışmada incelenmiştir.

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Details

Primary Language en
Subjects Engineering, Mechanical
Journal Section Research Article
Authors

Author: Mohammad AZARIFAR
Institution: ORTA DOĞU TEKNİK ÜNİVERSİTESİ
Country: Turkey

Author: Doğacan KARA
Institution: ORTA DOĞU TEKNİK ÜNİVERSİTESİ
Country: Turkey

Author: Nazlı DÖNMEZER (Primary Author)
Institution: BOĞAZİÇİ ÜNİVERSİTESİ
Country: Turkey
Dates

Publication Date : October 31, 2019

Cite

Bibtex @research article { isibted781479, journal = {Isı Bilimi ve Tekniği Dergisi}, issn = {1300-3615}, address = {}, publisher = {Türk Isı Bilimi ve Tekniği Derneği}, year = {2019}, volume = {39}, pages = {111 - 119}, doi = {}, title = {THERMAL SPREADING PERFORMANCE OF GaN-ON-DIAMOND SUBSTRATE HEMTS WITH LOCALIZED JOULE HEATING}, key = {cite}, author = {Azarıfar, Mohammad and Kara, Doğacan and Dönmezer, Nazlı} }
APA Azarıfar, M , Kara, D , Dönmezer, N . (2019). THERMAL SPREADING PERFORMANCE OF GaN-ON-DIAMOND SUBSTRATE HEMTS WITH LOCALIZED JOULE HEATING . Isı Bilimi ve Tekniği Dergisi , 39 (2) , 111-119 . Retrieved from https://dergipark.org.tr/en/pub/isibted/issue/56372/781479
MLA Azarıfar, M , Kara, D , Dönmezer, N . "THERMAL SPREADING PERFORMANCE OF GaN-ON-DIAMOND SUBSTRATE HEMTS WITH LOCALIZED JOULE HEATING" . Isı Bilimi ve Tekniği Dergisi 39 (2019 ): 111-119 <https://dergipark.org.tr/en/pub/isibted/issue/56372/781479>
Chicago Azarıfar, M , Kara, D , Dönmezer, N . "THERMAL SPREADING PERFORMANCE OF GaN-ON-DIAMOND SUBSTRATE HEMTS WITH LOCALIZED JOULE HEATING". Isı Bilimi ve Tekniği Dergisi 39 (2019 ): 111-119
RIS TY - JOUR T1 - THERMAL SPREADING PERFORMANCE OF GaN-ON-DIAMOND SUBSTRATE HEMTS WITH LOCALIZED JOULE HEATING AU - Mohammad Azarıfar , Doğacan Kara , Nazlı Dönmezer Y1 - 2019 PY - 2019 N1 - DO - T2 - Isı Bilimi ve Tekniği Dergisi JF - Journal JO - JOR SP - 111 EP - 119 VL - 39 IS - 2 SN - 1300-3615- M3 - UR - Y2 - 2019 ER -
EndNote %0 Isı Bilimi ve Tekniği Dergisi THERMAL SPREADING PERFORMANCE OF GaN-ON-DIAMOND SUBSTRATE HEMTS WITH LOCALIZED JOULE HEATING %A Mohammad Azarıfar , Doğacan Kara , Nazlı Dönmezer %T THERMAL SPREADING PERFORMANCE OF GaN-ON-DIAMOND SUBSTRATE HEMTS WITH LOCALIZED JOULE HEATING %D 2019 %J Isı Bilimi ve Tekniği Dergisi %P 1300-3615- %V 39 %N 2 %R %U
ISNAD Azarıfar, Mohammad , Kara, Doğacan , Dönmezer, Nazlı . "THERMAL SPREADING PERFORMANCE OF GaN-ON-DIAMOND SUBSTRATE HEMTS WITH LOCALIZED JOULE HEATING". Isı Bilimi ve Tekniği Dergisi 39 / 2 (October 2019): 111-119 .
AMA Azarıfar M , Kara D , Dönmezer N . THERMAL SPREADING PERFORMANCE OF GaN-ON-DIAMOND SUBSTRATE HEMTS WITH LOCALIZED JOULE HEATING. Isı Bilimi ve Tekniği Dergisi. 2019; 39(2): 111-119.
Vancouver Azarıfar M , Kara D , Dönmezer N . THERMAL SPREADING PERFORMANCE OF GaN-ON-DIAMOND SUBSTRATE HEMTS WITH LOCALIZED JOULE HEATING. Isı Bilimi ve Tekniği Dergisi. 2019; 39(2): 111-119.
IEEE M. Azarıfar , D. Kara and N. Dönmezer , "THERMAL SPREADING PERFORMANCE OF GaN-ON-DIAMOND SUBSTRATE HEMTS WITH LOCALIZED JOULE HEATING", Isı Bilimi ve Tekniği Dergisi, vol. 39, no. 2, pp. 111-119, Oct. 2019
Authors of the Article
Mohammad AZARIFAR [1]
Doğacan KARA [2]
Nazlı DÖNMEZER [3]
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