UIS test of high-voltage GaN-HEMTs with p-type gate structure

W. Saito, T. Naka

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)


This paper reports the withstanding capability of unclamped inductive switching (UIS) of high voltage GaN-HEMTs as a function of the gate voltage in the off-state. One of the critical disadvantages of GaN-HEMTs is its lack of the UIS withstanding capability because of the non-removable structure of holes, which are generated by the avalanche breakdown. Therefore, a p-type GaN gate structure is attractive not only for normally-off operation but also for the UIS withstanding capability design from the viewpoint of hole-removal. This paper shows the results of the UIS test for GaN-HEMTs with the p-type gate structure. The UIS withstanding capability of GaN-HEMTs can be designed via the hole removal structure and the package thermal resistance.

Original languageEnglish
Pages (from-to)552-555
Number of pages4
JournalMicroelectronics Reliability
Publication statusPublished - Sept 1 2016
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Safety, Risk, Reliability and Quality
  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Electrical and Electronic Engineering


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