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:
Feb. 17, 2026
Filed:
Feb. 14, 2023
Macronix International Co., Ltd., Hsinchu, TW;
Li-Yen Liang, Kaohsiung, TW;
MACRONIX International Co., Ltd., Hsinchu, TW;
Abstract
A memory structure, applicable to a three-dimensional AND flash memory device, is provided. The memory structure includes a substrate, a stack structure, a channel pillar, charge storage structures, a first conductive pillar, a second conductive pillar, and an isolation pillar. The stack structure is located on the substrate and includes first dielectric layers and conductive layers alternately stacked. The channel pillar passes through the stack structure. Each charge storage structure is located between the corresponding conductive layer and the channel pillar. The first conductive pillar and the second conductive pillar are located within the channel pillar. The first conductive pillar and the second conductive pillar are separated from each other. The isolation pillar is located between the first conductive pillar and the second conductive pillar. The top of the isolation pillar is higher than the top of the first conductive pillar and the top of the second conductive pillar.