STI process steps for sub-quarter micron CMOS

被引:20
作者
Sallagoity, P
Gaillard, F
Rivoire, M
Paoli, M
Haond, M
McClathie, S
机构
[1] France Telecom, Ctr Natl Etud Telecommun, F-38243 Meylan, France
[2] Electrotech, Thornbury Labs, Bristol BS12 1NP, Avon, England
关键词
D O I
10.1016/S0026-2714(97)00166-2
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
This paper presents Shallow Trench Isolation (STI) process steps for sub-1/4 mu m CMOS technologies. Dummy active areas, vertical trench sidewalls, excellent gap filling, counter mask etch step and CMP end point detection, have been used for a 0.18 mu m CMOS technology. Electrical results obtained with a 5.5 nm gate oxide thickness show good isolation down to 0.3 mu m spacing. Good transistor performances have been demonstrated. (C) 1998 Published by Elsevier Science Ltd.
引用
收藏
页码:271 / 276
页数:6
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