The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 6881622 B1

PDF
Full Text
Expired
Date of Patent:
Apr. 19, 2005

Filed:

May. 30, 2002
Applicants:

Chi-hsing Yu, Hsin-Chu, TW;

Chih-yang Pai, Hsin-Chu, TW;

Chia-shiung Tsai, Hsin-Chu, TW;

Inventors:

Chi-Hsing Yu, Hsin-Chu, TW;

Chih-Yang Pai, Hsin-Chu, TW;

Chia-Shiung Tsai, Hsin-Chu, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L021/8242 ;
U.S. Cl.
CPC ...
Abstract

Within a method for fabricating a capacitor structure within a microelectronic fabrication there is formed a capacitor structure comprising a pair of capacitor plate layers separated by a capacitor dielectric layer. Within the method, at least one of the pair of capacitor plates is formed of a doped amorphous silicon material formed incident to isotropic etching within an etchant solution comprising aqueous ammonium hydroxide, without hydrogen peroxide.


Find Patent Forward Citations

Yu, Chi-Hsing. (2005). Aqueous ammonium hydroxide amorphous silicon etch method for forming microelectronic capacitor structure (U.S. Patent No. 6881622). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6881622

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…