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.:
Date of Patent:
Nov. 19, 2013
Filed:
Apr. 11, 2008
Yu-wei Ting, Taipei, TW;
Shing-hwa Renn, Taipei County, TW;
Yu-teh Chiang, Taipei, TW;
Chung-ren LI, Hsinchu County, TW;
Tieh-chiang Wu, I-Lan Hsien, TW;
Yu-Wei Ting, Taipei, TW;
Shing-Hwa Renn, Taipei County, TW;
Yu-Teh Chiang, Taipei, TW;
Chung-Ren Li, Hsinchu County, TW;
Tieh-Chiang Wu, I-Lan Hsien, TW;
Nanya Technology Corp., Kueishan, Tao-Yuan Hsien, TW;
Abstract
A capacitor structure for a pumping circuit includes a substrate, a U-shaped bottom electrode in the substrate, a T-shaped top electrode in the substrate and a dielectric layer disposed between the U-shaped bottom and T-shaped top electrode. The contact area of the capacitor structure between the U-shaped bottom and T-shaped top electrode is extended by means of the cubic engagement of the U-shaped bottom electrode and the T-shaped top electrode.