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:
Dec. 18, 2018
Filed:
Sep. 25, 2017
Samsung Electronics Co., Ltd., Suwon-si, Gyeonggi-do, KR;
Samsung Electronics. Co., Ltd., Gyeonggi-do, KR;
Abstract
A soft erase method of a memory device including applying a program voltage to a first memory cell in at least one of program loops when a plurality of program loops are performed to program the first memory cell into a Nprogramming state, wherein the first memory cell is included in a selected memory cell string connected to a selected first bit line and is connected to a selected word line; and soft erasing a second memory cell by applying, in a first verification interval, a read voltage for verifying a programming state of the first memory cell to the selected word line and applying a first prepulse to a gate of a string select transistor of each of a plurality of unselected memory cell strings connected to the first bin line and a plurality of unselected memory cell strings connected to an unselected second bit line.