Presentation 2013/1/10
Analysis of Lag Phenomena,Current Collapse and Breakdown Characteristics in Source-Field-Plate AIGaN/GaN HEMTs
Hideyuki HANAWA, Hiraku ONODERA, Kazushige HORIO,
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Abstract(in English) Two-dimensional analysis of lag phenomena, current collapse and breakdown voltages in source-field-plate AlGaN/GaN HEMTs is performed, and the results are compared with those for the case of gate-field-plate structure It is shown that the reduction rate of drain-lag is similar between the two structures, but the reduction rates of gate lag and current collapse are smaller for the source-field-plate structure This is because the electnc field at the drain edge of the gate becomes higher in the off state and the trapping effects become more significant For this reason, the off-state breakdown voltage is a little lower in the source-field-plate structure It is suggested that there is an optimum thickness of SiN passivation layer to minimize the buffer-related current collapse in both structures
Keyword(in Japanese) (See Japanese page)
Keyword(in English) GaN / HEMT / field plate / lag phenomena / current collapse / breakdown voltage / two-dimensional analysis
Paper # ED2012-123
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Committee ED
Conference Date 2013/1/10(1days)
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Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Analysis of Lag Phenomena,Current Collapse and Breakdown Characteristics in Source-Field-Plate AIGaN/GaN HEMTs
Sub Title (in English)
Keyword(1) GaN
Keyword(2) HEMT
Keyword(3) field plate
Keyword(4) lag phenomena
Keyword(5) current collapse
Keyword(6) breakdown voltage
Keyword(7) two-dimensional analysis
1st Author's Name Hideyuki HANAWA
1st Author's Affiliation Faculty of Systems Engineering, Shibaura Institute of Technology()
2nd Author's Name Hiraku ONODERA
2nd Author's Affiliation Faculty of Systems Engineering, Shibaura Institute of Technology
3rd Author's Name Kazushige HORIO
3rd Author's Affiliation Faculty of Systems Engineering, Shibaura Institute of Technology
Date 2013/1/10
Paper # ED2012-123
Volume (vol) vol.112
Number (no) 380
Page pp.pp.-
#Pages 6
Date of Issue