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:
Jul. 12, 2011

Filed:

Dec. 29, 2008
Applicant:

Ju-young Seo, Gyeonggi-do, KR;

Inventor:

Ju-Young Seo, Gyeonggi-do, KR;

Assignee:

Hynix Semiconductor Inc., Gyeonggi-do, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 16/04 (2006.01);
U.S. Cl.
CPC ...
Abstract

A semiconductor memory device includes a source signal generator configured to generate a source signal having a predetermined pulse width in response to a command signal, and a column selection signal generator configured to generate a column selection signal by controlling a pulse width of the source signal according to a voltage level of an external supply voltage.


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