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:
Sep. 18, 2012
Filed:
Sep. 23, 2011
Applicant:
Khil-ohk Kang, Gyeonggi-do, KR;
Inventor:
Khil-Ohk Kang, Gyeonggi-do, KR;
Assignee:
Hynix Semiconductor Inc., Gyeonggi-do, KR;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G11C 5/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
A reference voltage selecting unit selectively outputs a first external reference voltage and a second external reference voltage as a selection reference voltage in accordance with whether to perform a wafer test. An address buffer generates an internal address by buffering an external address in accordance with the selection reference voltage. A command buffer generates an internal command by buffering an external command in accordance with the selection reference voltage. A data buffer generates internal data by buffering to an external data in accordance with the second external reference voltage.