Effect of post-metal annealing on the quality of thermally grown silicon dioxide on 6H- and 4H-SiC

J. Campi, Y. Shi, Y. Luo, F. Yan, Y. K. Lee, J. H. Zhao

Research output: Contribution to journalConference articlepeer-review

2 Scopus citations

Abstract

Effect of post-metallization annealing (PMA) on the quality of the thermally grown SiO2 on 6H- and 4H-SiC has been systematically studied. It is found that under a carefully controlled and optimized PMA condition, it is possible to reduce the effective fixed charge density for both n type and p type 6H- and 4H-SiC. The study covers an annealing temperature range of 400 °C to 600 °C in forming gas (5% hydrogen in nitrogen) for various periods of time. Optimum annealing conditions for both 6H- and 4H-SiC will be reported. Also reported are excellent Dit values for both p type 6H- and p type 4H-SiC/SiO2 structures.

Original languageEnglish
Pages (from-to)849-852
Number of pages4
JournalMaterials Science Forum
Volume264-268
Issue numberpt 2
DOIs
StatePublished - 1998
EventProceedings of the 1997 7th International Conference on Silicon Carbide, III-Nitrides and Related Materials, ICSCIII. Part 1 (of 2) - Stockholm, Sweden
Duration: 30 Sep 1997 → …

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