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. 13, 2024
Filed:
Feb. 06, 2023
Macronix International Co., Ltd., Hsinchu, TW;
Ching Hung Wang, Hsinchu, TW;
Shih Chin Lee, Taichung, TW;
Chen-Yu Cheng, Hsinchu, TW;
Tzung-Ting Han, Hsinchu, TW;
MACRONIX International Co., Ltd., Hsinchu, TW;
Abstract
Provided is a memory device including a substrate, a stack structure, a plurality of pads and an additional dielectric layer. The substrate has an array region and a staircase region. The stack structure is disposed on the substrate. The stack structure includes a plurality of dielectric layers and a plurality of conductive layers stacked alternately. The pads are disposed on the substrate in the staircase region. The pads are respectively connected to the conductive layers, so as to form a staircase structure. The additional dielectric layer is disposed on the stack structure to contact a topmost conductive layer of the conductive layers. A topmost pad of the pads includes a landing portion to contact a plug and an extension portion. The landing portion is laterally adjacent to the additional dielectric layer, and the extension portion extends over a top surface of the additional dielectric layer.