1836 V, 4.7 mΩ-cm2 high power 4H-SiC bipolar junction transistor

Jianhui Zhang, Jian Wu, Petre Alexandrov, Terry Burke, Kuang Sheng, Jian H. Zhao

Research output: Chapter in Book/Report/Conference proceedingConference contribution

14 Scopus citations

Abstract

This paper reports recent progress in the development of high power 4H-SiC BJTs based on an improved device design and fabrication scheme. Near theoretical limit high blocking voltage of VCEO=1,836 V has been achieved for 4H-SiC BJTs based on a drift layer of only 12 μm, doped to 6.7×10 15 cm-3. The collector current measured for a single cell BJT with an active area of 0.61 mm2 is up to IC=9.87 A (JC=1618 A/cm2). The collector current is 7.64 A (J c=1252 A/cm2) at VCE=5.9 V in the saturation region, corresponding to an absolute specific on-resistance (RSP_ON) of 4.7 mΩ·cm2. From VCE=2.4 V to V CE= 5.8 V, the BJT has a differential RSP_ON of only 3.9 mΩ·cm2. The current gain is about 8.8 at Ic=5.3 A (869 A/cm2). This 4H-SiC BJT shows a V2/RSP_ON of 717 MW/cm2, which is the highest value reported to date for high-voltage and high-current 4H-SiC BJTs. A very-large area 4H-SiC BJT with an active area of 11.3 mm2 is also demonstrated.

Original languageEnglish (US)
Title of host publicationSilicon Carbide and Related Materials - 2005, - Proceedings of the International Conference on Silicon Carbide and Related Materials -2005
PublisherTrans Tech Publications Ltd
Pages1417-1420
Number of pages4
EditionPART 2
ISBN (Print)9780878494255
DOIs
StatePublished - 2006
EventInternational Conference on Silicon Carbide and Related Materials 2005, (ICSCRM 2005) - Pittsburgh, PA, United States
Duration: Sep 18 2005Sep 23 2005

Publication series

NameMaterials Science Forum
NumberPART 2
Volume527-529
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Other

OtherInternational Conference on Silicon Carbide and Related Materials 2005, (ICSCRM 2005)
Country/TerritoryUnited States
CityPittsburgh, PA
Period9/18/059/23/05

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Keywords

  • Bipolar junction transistor (BJT)
  • High temperature
  • High voltage
  • Low on-resistance

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