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. 17, 2026
Filed:
Oct. 03, 2022
Winbond Electronics Corp., Taichung City, TW;
Tsung-Wei Lin, Taichung City, TW;
Kun-Che Wu, Taichung City, TW;
Chun-Yen Liao, Taichung City, TW;
Chun-Sheng Wu, Taichung City, TW;
WINBOND ELECTRONICS CORP., Taichung City, TW;
Abstract
A method of manufacturing a memory device includes providing a substrate and sequentially forming a stack layer and a hard mask layer on the substrate. The method includes forming a first patterned mandrel and a plurality of second patterned mandrels on the hard mask layer, wherein the first patterned mandrel is adjacent to and spaced apart from an end of the second patterned mandrels in the first direction. The method further includes using the first patterned mandrel and the second patterned mandrels as masks, patterning the hard mask layer and the stack layer sequentially to form a dummy structure and a plurality of word lines separated from each other on the substrate. A portion of the stack layer corresponding to the first mandrel is formed into the dummy structure, and a portion of the stack layer corresponding to the second patterned mandrels is formed into the word lines.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile