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:
Feb. 27, 2007
Filed:
Oct. 21, 2005
Applicant:
Jong-hyoung Lim, Seoul, KR;
Inventor:
Jong-Hyoung Lim, Seoul, KR;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 29/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A circuit and method for test mode entry of a semiconductor memory device are provided. In a method of entering a semiconductor memory device into a test mode, an internal clock is generated in response to an external clock when a first condition is satisfied. An address combination signal is generated based on a first address combination and the internal clock. The semiconductor memory device is entered into the test mode using the internal clock and the address combination signal.