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:
Nov. 10, 2020
Filed:
Feb. 26, 2019
Renesas Electronics Corporation, Tokyo, JP;
Yoshisato Yokoyama, Tokyo, JP;
RENESAS ELECTRONICS CORPORATION, Tokyo, JP;
Abstract
A semiconductor device includes a memory cell array, a plurality of word lines, a plurality of bit line pairs, a column selection circuit coupling a bit line pair in a selected column in the plurality of bit line pairs to first and second output signal lines on the basis of a column selection signal, and a sense amplifier amplifying the voltage difference between the first and second output signal lines. The semiconductor device further includes: a scan flip flop to which the data can be input via a scan chain; and a voltage setting circuit setting the first and second output signal lines to voltage according to the data held in the scan flip flop in a scan test.