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:
Oct. 23, 2007
Filed:
Aug. 16, 2005
Applicants:
Hui-kwon Seo, Gyeonggi-do, KR;
Woo-il Kim, Seoul, KR;
Inventors:
Hui-Kwon Seo, Gyeonggi-do, KR;
Woo-Il Kim, Seoul, KR;
Assignee:
Samsung Electronics Co., Ltd., Suwon-si, Gyeonggi-do, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 16/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
Disclosed is a pumping voltage generating circuit in a nonvolatile semiconductor memory device. The present pumping voltage generating circuit begins a pumping operation for a wordline voltage in response to an accelerating start signal activated from a supply of an external program voltage, rather than a pumping enable signal activated from a program command. According to the pumping voltage generating circuit, the wordline voltage reaches a target voltage earlier, remarkably enhancing an overall operation speed in a nonvolatile semiconductor memory device.