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. 03, 2009
Filed:
Feb. 12, 2007
Shao-yu Chou, Chung-Li, TW;
Yen-huei Chen, Hsin-Chu, TW;
Jui-jen Wu, Hsin-Chu, TW;
Gary Chan, Taipei, TW;
Shao-Yu Chou, Chung-Li, TW;
Yen-Huei Chen, Hsin-Chu, TW;
Jui-Jen Wu, Hsin-Chu, TW;
Gary Chan, Taipei, TW;
Taiwan Semiconductor Manufacturing Company, Ltd., Hsin-Chu, TW;
Abstract
A bootstrap voltage generating circuit includes a bias circuit having a first end coupled to a first power source node having an operation voltage, and a second end coupled to a low voltage reference potential, wherein a voltage at the first end is related to the operation voltage in a non-linear way; a charging capacitor having a first end coupled to the load circuit; a charging path between a second end of the charging capacitor and the first end of the bias circuit, wherein the charging path is responsive to a clock signal; a discharging path between the second end of the charging capacitor and the low voltage reference potential, wherein the discharging path is responsive to the clock signal; and a switch circuit connected to the first end of the charging capacitor for setting a voltage thereon, wherein the switch circuit is responsive to the clock signal.