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:
Jun. 17, 1997

Filed:

Apr. 22, 1996
Applicant:
Inventors:

Seong Jin Jang, Seoul, KR;

Young-Hyun Jun, Seoul, KR;

Jae Sik Lee, Seoul, KR;

Assignee:

LG Semicon Co., Ltd., Cheongju, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
365201 ; 36518901 ;
Abstract

An improved DRAM having a self-test function capable of performing a self-test function in a fast page mode in accordance with a transition of a column address in accordance with an interior clock signal without a toggle of a column address strobe signal, which includes an entry/exit control unit for generating a self-test entry signal in accordance with a combination a predetermined address signal and an external synchronous signal; a signal transition detection unit for detecting a transition of a self-test entry signal and a word line enable signal and for outputting a transition detection signal; a counter for counting an interior clock signal outputted in accordance with a transition detection signal; a data generating and comparison unit for writing and reading a test data without a toggle of the external synchronous signal comparing the read test data with the generated test data; and an error and end detection unit for generating an error flag and end flag.


Find Patent Forward Citations

Jang, Seong. (1997). Dynamic random access memory having self-test function (U.S. Patent No. 5640354). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5640354

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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