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. 15, 2022
Filed:
Oct. 14, 2020
Ememory Technology Inc., Hsin-Chu, TW;
Ying-Je Chen, Hsinchu County, TW;
Wei-Ming Ku, Hsinchu County, TW;
Wein-Town Sun, Hsinchu County, TW;
EMEMORY TECHNOLOGY INC., Hsin-Chu, TW;
Abstract
A programming and verifying method for a multi-level memory cell array includes following steps. In a step (a1), a first row of the multi-level memory cell array is set as a selected row, and A is set as 1. In a step (a2), memory cells in the selected row excluding the memory cells in the target storage state and bad memory cells are programmed to the A-th storage state. In a step (a3), if A is not equal to X, 1 is added to X and the step (a2) is performed again. In a step (a4), if A is equal to X, the program cycle is ended. In the step (a2), the first-portion memory cells of the selected row are subjected to plural write actions and plural verification actions until all of the first-portion memory cells reach the A-th storage state.