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. 30, 2007
Filed:
Oct. 04, 2005
Applicants:
Dong-jun Kim, Gyeonggi-do, KR;
Hee-joo Choi, Gyeonggi-do, KR;
Kae-won Ha, Gyeonggi-do, KR;
Inventors:
Assignee:
Samsung Electronics Co., Ltd., Gyeonggi-do, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 29/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A voltage level shifter for a semiconductor memory device includes a VPP level control circuit that is configured to detect a VPP voltage and to change the VPP voltage in response to a package burn-in mode signal and a test mode signal independent of at least one direct current voltage generated in response to the package burn-in mode signal.