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:
Aug. 22, 2006
Filed:
Dec. 09, 2004
Applicant:
Keun Woo Lee, Yongin-Shi, KR;
Inventor:
Keun Woo Lee, Yongin-Shi, KR;
Assignee:
Hynix Semiconductor Inc., Ichon-shi, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 11/34 (2006.01);
U.S. Cl.
CPC ...
Abstract
Provided is concerned with a method of erasing a NAND flash memory device, capable of restraining an erasing disturbance fail arising from a deselected cell block and improving a product yield of the device by applying a negative voltage to a well of a high voltage transistor forming an X-decoder during an erasing operation in the NAND flash memory device.