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:
Oct. 17, 2023
Filed:
Oct. 22, 2019
Lam Research Corporation, Fremont, CA (US);
Thorsten Lill, Santa Clara, CA (US);
Meihua Shen, Fremont, CA (US);
John Hoang, Fremont, CA (US);
Hui-Jung Wu, Pleasanton, CA (US);
Gereng Gunawan, Saratoga, CA (US);
Yang Pan, Los Altos, CA (US);
LAM RESEARCH CORPORATION, Fremont, CA (US);
Abstract
A three-dimensional (3D) memory structure includes memory cells and a plurality of oxide layers and a plurality of word line layers. The plurality of oxide layers and the plurality of word line layers are alternately stacked in a first direction. A plurality of double channel holes extend through the plurality of oxide layers and the plurality of word line layers in the first direction. The plurality of double channel holes have a peanut-shaped cross-section in a second direction that is transverse to the first direction.