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:
Jan. 13, 2026
Filed:
Feb. 28, 2023
SK Hynix Inc., Icheon-si, KR;
Nam Jae Lee, Icheon-si, KR;
SK hynix Inc., Icheon-si, KR;
Abstract
A semiconductor memory device, and a method of manufacturing the semiconductor memory device, includes a gate stack including interlayer insulating layers and word lines alternately stacked in a first direction, channel pillars passing through the gate stack and tapering toward the first direction, source select lines surrounding the channel pillars and extending to overlap the gate stack, and a source isolation insulating layer overlapping the gate stack between the source select lines and tapering toward a direction opposite to the first direction.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile