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:
Feb. 18, 2020
Filed:
Mar. 06, 2018
Winbond Electronics Corp., Taichung, TW;
Koying Huang, San Jose, CA (US);
WINBOND ELECTRONICS CORP., Taichung, TW;
Abstract
A method for detecting a flash memory array includes a plurality of word lines, a plurality of bit lines, and a source line, includes executing a first detection process. The first detection process includes: applying a first positive voltage to a P-type well of the flash memory array; applying a ground to all the word lines; floating the bit lines and the source line; determining whether a leakage current flowing through the P-type well exceeds a leakage threshold; and when the leakage current exceeds the leakage threshold, determining that at least one of the word lines is short-circuited with at least one of the bit lines or the source line.