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Reliability study of a RF power amplifier with GaN-on-SiC HEMTs
SP Technical Research Institute of Sweden, Borås, Sweden.
Acreo Swedish ICT, Kista, Sweden.
Saab AB, Gothenburg, Sweden.
Saab AB, Gothenburg, Sweden.
Show others and affiliations
2016 (English)In: ECS Transactions, Pennington, N.J.: Electrochemical Society, 2016, Vol. 75, no 12, 49-59 p.Conference 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
Pennington, N.J.: Electrochemical Society, 2016. Vol. 75, no 12, 49-59 p.
Series
ECS Transactions, ISSN 1938-5862 ; 75:12
Keyword [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
Electrical Engineering, Electronic Engineering, Information Engineering Materials Engineering
Identifiers
URN: urn:nbn:se:hj:diva-32237DOI: 10.1149/07512.0049ecstISI: 000406653000007Scopus ID: 2-s2.0-84991511070OAI: oai:DiVA.org:hj-32237DiVA: diva2:1044515
Conference
Symposium on Gallium Nitride and Silicon Carbide Power Technologies 6 - PRiME 2016/230th ECS Meeting, 2 October 2016 through 7 October 2016
Funder
VINNOVASwedish Energy Agency, 2014-05667
Available from: 2016-11-03 Created: 2016-11-03 Last updated: 2017-08-24Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
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