The performance and reliability of AlGaN/AlN/GaN HEMT on 4 inch semi-insulating SiC substrate fabricated with baseline GaN HEMT process of Wavice Inc. have been reported. The baseline process of Wavice Inc. includes AlxGa1-xN/AlN/u-GaN/Fe-GaN epi structure with x=22%, Si+ ion implanted and recess etched ohmic, 0.4 um gate length, Ni based gamma Gate, electro plated void free source connected field plate (SCFP), 5 um thick electro plated interconnect metal, 85 um SiC substrate thickness after grinding, through SiC via directly to the source ohmic metal with sloped side wall, 7 um thick electro plated back side metal. To qualify the process technology, 3 non-consecutive lots were produced. DC/RF characterization and a list of reliability tests have been done on randomly selected devices.
Qualification of Wavice Baseline GaN HEMT process with 0.4 um gate on 4” SiC wafersHosang Kwon, Agency for Defense DevelopmentSangmin Lee, Wavice Inc.Byoungchul Jun, Wavice Inc.Chulsoon choi, Wavice Inc.Hyeyoung Jung, Wavice Inc.Seokgyu Choi, Wavice Inc.Min Han, Wavice Inc.Ho Geun Lee, Wavice Inc.Myoungkeun Song, Wavice Inc.Sung Won Lee, Wavice Inc.Young Jae Kim, Wavice Inc.Jihun Kwon, Wavice Inc.Myoungsoo Park, Wavice Inc.Sewon Hwang, Wavice Inc.Hangyol Ji, Wavice Inc.Download Paper
GaN-on-SiC MMIC Production for S-Band and EW-Band ApplicationsRyan FuryScott Sheppard, Wolfspeed | A Cree CompanyJeffrey B. BarnerBill PribbleJeremy Fisher, Wolfspeed | A Cree CompanyDonald A. GajewskiFabian Radulescu, Wolfspeed | A Cree CompanyHelmut HagleitnerDan Namishia, Wolfspeed | A Cree CompanyZoltan RingJennifer Gao, Wolfspeed | A Cree CompanySangmin Lee, Wavice Inc.
Performance and Reliability of AlGaN/GaN HEMT o_blankn 100-mm SiC Substrate with Improved Epitaxial Growth UniformitySangmin Lee, Wavice Inc.Tim KennedyChrister HallinHelder AntunesBrian FetzerScott T. SheppardAl Burk, Wolfspeed, A Cree CompanyDon A. Gajewski