A multi-contact six-Terminal cross-bridge Kelvin resistor (CBKR) structure for evaluation of interface uniformity of the Ti-Al alloy/p-Type 4H-SiC contact

Yen Ling Chen*, Shih Hao Lai, Jian Hao Lin, Bing Yue Tsui

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

A multi-contact six-Terminal cross-bridge Kelvin resistor (CBKR) structure is proposed to characterize the Ti-Al alloy/p-Type 4H-SiC contact. It is confirmed that the test structure can judge the uniformity of the contact interface without destructive analysis such as cross-sectional transmission electron microscopy. Comparing with the results of singlecontact CBKR structure, it is observed that the contact interface is non-uniform and the formation of low resistivity interface depends on the contact area. This area-dependence issue should be solved in order to improve the SiC power devices and CMOS ICs.

Original languageEnglish
Title of host publication2023 35th International Conference on Microelectronic Test Structure, ICMTS 2023
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9798350346534
DOIs
StatePublished - 2023
Event35th International Conference on Microelectronic Test Structure, ICMTS 2023 - Tokyo, Japan
Duration: 27 Mar 202330 Mar 2023

Publication series

NameIEEE International Conference on Microelectronic Test Structures
Volume2023-March

Conference

Conference35th International Conference on Microelectronic Test Structure, ICMTS 2023
Country/TerritoryJapan
CityTokyo
Period27/03/2330/03/23

Keywords

  • cross-bridge Kelvin resistor
  • ohmic contact
  • silicon carbide
  • specific contact resistance

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