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:
Mar. 20, 2007
Filed:
Jul. 15, 2005
Applicant:
Ju Yeab Lee, Kyeongki-do, KR;
Inventor:
Ju Yeab Lee, Kyeongki-do, KR;
Assignee:
Hynix Semiconductor Inc., Kyoungki-do, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C 11/34 (2006.01); G11C 16/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
Disclosed herein is a NAND flash memory device capable of changing a block size. In NAND flash memory devices capable of changing a block size, each memory block is divided into two page groups. Each memory block includes two block switches to select each page group in response to an external address signal. During an erasing operation, the block size is easily variable by applying an erasure voltage to one or two page groups.