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:
Nov. 26, 2019
Filed:
Apr. 13, 2017
Macronix International Co., Ltd., Hsinchu, TW;
MACRONIX INTERNATIONAL CO., LTD., Hsinchu, TW;
Abstract
A three-dimensional (3D) semiconductor device is provided, comprising: a substrate having a first area and a second area, and the second area adjacent to and surrounding the first area (i.e. active area), wherein an array pattern is formed in the first area; a stack structure having multi-layers formed above the substrate, and the multi-layers comprising active layers (ex: conductive layers) alternating with insulating layers above the substrate. The stack structure comprises first sub-stacks related to the array pattern in the first area; and second sub-stacks separately disposed in the second area, and the second sub-stacks configured as first dummy islands surrounding the first sub-stacks of the array pattern.