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:
Mar. 24, 2026
Filed:
Nov. 25, 2022
Winbond Electronics Corp., Taichung City, TW;
Frederick Chen, San Jose, CA (US);
Wei-Che Chang, Taichung City, TW;
Winbond Electronics Corp., Taichung City, TW;
Abstract
Provided is a flash memory device including a gate stack structure, at least three channel pillars, a charge storage structure, at least three source line, and at least three bit lines. The gate stack structure is disposed above a substrate. The gate stack structure includes a plurality of gate layers and a plurality of insulating layers stacked alternately each other. The at least three channel pillars extend through the gate stack structure. The at least three channel pillars are electrically isolated from one another. The charge storage structure is disposed between the plurality of gate layers and the at least three channel pillars. The at least three source line are disposed below the gate stack structure and electrically connected to the at least three channel pillars. The at least three bit lines are disposed above the gate stack structure, and electrically connected to the at least three channel pillars.