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. 13, 2019
Filed:
Feb. 04, 2019
Lapis Semiconductor Co., Ltd., Yokohama, JP;
Takashi Yamada, Yokohama, JP;
LAPIS Semiconductor Co., Ltd., Yokohama, JP;
Abstract
A non-volatile semiconductor storage device including a first potential retention line configured to retain a potential corresponding to data read from the memory cell, a second potential retention line configured to retain a reference potential read from the memory cell in which the reference potential is written after the data is read out, a sense amplifier configured to amplify a difference between the potential retained by the first potential retention line and the reference potential for reading out the data from the memory cell, a first offset adjustment circuit connected to the first potential retention line, for adjusting an offset for the potential, a second offset adjustment circuit connected to the second potential retention line, and an offset command signal supply circuit configured to supply a first offset command signal to the first offset adjustment circuit so as to control the offset.