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.

Date of Patent:
Sep. 14, 2010

Filed:

Dec. 05, 2007
Applicants:

Ju IN Kim, Incheon-si, KR;

Ju Yeab Lee, Icheon-si, KR;

Inventors:

Ju In Kim, Incheon-si, KR;

Ju Yeab Lee, Icheon-si, KR;

Assignee:

Hynix Semiconductor Inc., Icheon-si, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 16/06 (2006.01);
U.S. Cl.
CPC ...
Abstract

A flash memory device may include a memory cell array, a page buffer unit, and a switching element. The page buffer unit may include first and second latches and is configured to program data into the memory cell array and read data from the memory cell array. The switching element enables the first latch during a verify operation of a first program based on a first verify voltage, and enables or disables the first latch in order to execute a verify operation of a second program based on a second verify voltage lower than the first verify voltage depending on whether data to be programmed has been stored in the second latch.


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