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Epitaxial Junction Termination Extension (Epi-JTE) for SiC Power Devices

Doohyung CHO, Kunsik PARK, Jongil WON, Sanggi KIM, Kwansgsoo KIM

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Summary :

In this paper, Epitaxial (Epi) Junction Termination Extension (JTE) technique for silicon carbide (SiC) power device is presented. Unlike conventional JTE, the Epi-JTE doesn't require high temperature (about 500°C) implantation process. Thus, it doesn't require high temperature (about 1700°C) process for implanted dose activation and surface defect curing. Therefore, the manufacturing cost will be decreased. Also, the fabrication process is very simple because the dose of the JTE is controlled by epitaxy growth. The blocking characteristic is analyzed through 2D-simulation for the proposed Epi-JTE. In addition, the effect was validated by experiment of fabricated SiC device with the Single-Zone-Epi-JTE. As a result, it has blocking capability of 79.4% compared to ideal parallel-plane junction breakdown.

Publication
IEICE TRANSACTIONS on Electronics Vol.E100-C No.5 pp.439-445
Publication Date
2017/05/01
Publicized
Online ISSN
1745-1353
DOI
10.1587/transele.E100.C.439
Type of Manuscript
Special Section PAPER (Special Section on Fundamentals and Applications of Advanced Semiconductor Devices)
Category

Authors

Doohyung CHO
  Electronics and Telecommunications Research Institute
Kunsik PARK
  Electronics and Telecommunications Research Institute
Jongil WON
  Electronics and Telecommunications Research Institute
Sanggi KIM
  Electronics and Telecommunications Research Institute
Kwansgsoo KIM
  Sogang University

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