Semiconductor device manufacturing: process – Making passive device – Trench capacitor
Reexamination Certificate
2007-05-29
2007-05-29
Deo, Duy-Vu N (Department: 1765)
Semiconductor device manufacturing: process
Making passive device
Trench capacitor
C438S389000, C438S391000, C438S393000, C438S394000, C438S395000
Reexamination Certificate
active
10710061
ABSTRACT:
A structure and method are provided for forming a collar surrounding a portion of a trench in a semiconductor substrate, the collar having a lower edge self-aligned to a top edge of a buried plate disposed adjacent to a lower portion of the trench.
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Cheng Kangguo
Divakaruni Ramachandra
Radens Carl J.
Cai Yuanmin
Deo Duy-Vu N
International Business Machines - Corporation
Neff Daryl K.
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