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:
Oct. 04, 2011
Filed:
Jun. 30, 2008
Kenichi Anzou, Kawasaki, JP;
Chikako Tokunaga, Kawasaki, JP;
Kenichi Anzou, Kawasaki, JP;
Chikako Tokunaga, Kawasaki, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A semiconductor integrated circuit has a memory collar including a memory cell configured to store a written data pattern and read and output the data pattern, and a register configured to store a failed data pattern, and a built-in self test circuit configured to write the data pattern in the memory cell, output expected value data, and decide whether to continue a test or suspend the test to output failure information to outside, based on a comparison result of the data pattern outputted from the memory cell and the expected value data and a comparison result of the data pattern and the failed data pattern.