Reliability study of a RF power amplifier with GaN-on-SiC HEMTsShow others and affiliations
2016 (English)In: ECS Transactions, 2016, Vol. 75, no 12, p. 49-59Conference paper, Published paper (Refereed)
Abstract [en]
RF power amplifier demonstrators containing each one GaN-on- SiC, HEMT, CHZ015A-QEG, from UMS in SMD quad-flat noleads package (QFN) were subjected to thermal cycles (TC) and power cycles (PC) and evaluated electrically, thermally and structurally. Two types of lead-free solders (Sn63Pb36Ag2 and SnAgCu (SAC305)) and two types of TIM materials (NanoTIM and TgonTM 805) for PCB attachment to liquid cold plate were tested for thermo-mechanical reliability. Changes in electrical performance of the devices namely reduction of the current saturation value, threshold voltage shift, increase of the leakage current and degradation of the HF performance were observed as a result of an accumulated current stress during PC. No significant changes in the investigated solder or TIM materials were observed.
Place, publisher, year, edition, pages
2016. Vol. 75, no 12, p. 49-59
Series
ECS Transactions, ISSN 1938-5862, E-ISSN 1938-6737 ; 75
Keywords [en]
Gallium nitride, Lead, Lead-free solders, Nitrides, Polychlorinated biphenyls, Power amplifiers, Silicon carbide, Soldering alloys, Thermal conductivity, Threshold voltage, Tin, Cold plates, Current saturation, Current stress, Electrical performance, Quad flat no-leads, RF power amplifiers, Thermomechanical reliability, Threshold voltage shifts, Radio frequency amplifiers
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-27663DOI: 10.1149/07512.0049ecstScopus ID: 2-s2.0-84991511070ISBN: 9781607685395 (print)OAI: oai:DiVA.org:ri-27663DiVA, id: diva2:1059320
Conference
Symposium on Gallium Nitride and Silicon Carbide Power Technologies 6 - PRiME 2016/230th ECS Meeting, October 2-7, 2016, Honolulu, US
Note
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2016-12-222016-12-212024-04-05Bibliographically approved