Semiconductor device manufacturing: process – Making passive device – Resistor
Reexamination Certificate
2010-01-15
2011-12-20
Ahmadi, Mohsen (Department: 2812)
Semiconductor device manufacturing: process
Making passive device
Resistor
C438S381000, C438S382000, C438S385000, C438S620000, C257SE21004, C257SE21006, C257SE21003, C257SE21495
Reexamination Certificate
active
08080461
ABSTRACT:
A method of making a thin film resistor includes: forming a doped region in a semiconductor substrate; forming a dielectric layer over the substrate; forming a thin film resistor over the dielectric layer; forming a contact hole in the dielectric layer before annealing the thin film resistor, wherein the contact hole exposes a portion of the doped region; and performing rapid thermal annealing on the thin film resistor after forming the contact hole.
REFERENCES:
patent: 7345573 (2008-03-01), Beach
patent: 2001/0046771 (2001-11-01), Steinmann et al.
patent: 2007/0008062 (2007-01-01), Fivas et al.
patent: 2007/0048960 (2007-03-01), Jaiswal et al.
patent: 2008/0132056 (2008-06-01), Beach
Chao Chih-Ping
Kalnitsky Alexander
Kuang Hsun-Chung
Liu Ming Chyi
Yeh Der-Chyang
Ahmadi Mohsen
Duane Morris LLP
Koffs Steven E.
Taiwan Semiconductor Manufacturing Co. Ltd.
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