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:
Jun. 11, 2019
Filed:
May. 31, 2017
Shanghai Huahong Grace Semiconductor Manufacturing Corporation, Shanghai, CN;
Guangjun Yang, Shanghai, CN;
Abstract
A reference-current generation method for flash includes first and second memory arrays separated by a word-line switching circuit. A reference-current generation circuit includes rows of reference cells, the first row parallel with the other rows of the first memory array and having the same number of columns as the other rows thereof, and the second row parallel with the other rows of the second memory array and having the same number of columns as the other rows thereof. The first reference word line of the first row is disconnected with the second reference word line of the second row. After programming, the first row enables the first memory array to create the first reference current used while performing read operation for the second memory array, and the second row enables the second memory array to create the second reference current used while performing read operation for the first memory array.