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:
Aug. 24, 2021
Filed:
Nov. 25, 2019
Macronix International Co., Ltd., Hsinchu, TW;
Chih-Wei Hu, Toufen, TW;
Teng-Hao Yeh, Zhubei, TW;
MACRONIX INTERNATIONAL CO., LTD., Hsinchu, TW;
Abstract
A three-dimensional memory device includes a plurality of conductive layers and insulating layers alternately formed to define a multi-layer stacked structure. The multi-layer stacked structure includes a stair region and an non-stair region, the stair region includes a plurality of steps, each step includes an immediately-adjacent pair of the conductive layers and insulating layers. A plurality of memory structures are located in the non-stair region, and each memory structure passes through the conductive layers and the insulating layers. A fishbone dielectric structure includes a main bone and a plurality of side bones extending from the main bone in the stair region, wherein the main bone crosses the memory structures in the non-stair region.