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:
Aug. 09, 2005
Filed:
Sep. 06, 2001
Applicants:
Tohru Kimura, Yokohama, JP;
Toshiki Hisada, Yokohama, JP;
Inventors:
Tohru Kimura, Yokohama, JP;
Toshiki Hisada, Yokohama, JP;
Assignee:
Kabushiki Kaisha Toshiba, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C029/00 ;
U.S. Cl.
CPC ...
Abstract
A test code is input to a test mode control circuit so that the test mode control circuit creates the test decode signal. The test decode signal is converted into serial data with a parallel·serial converting circuit in synchronization with a base clock. The serial data is input to a serial·parallel converting circuit located in the vicinity of the test code latch circuit dispersed on the semiconductor chip via one very long serial data line extending from end to end of the semiconductor chip.