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. 07, 2017
Filed:
Mar. 17, 2015
Sandisk Technologies Inc., Plano, TX (US);
Yasushi Doda, Yokkaichi, JP;
Ryoichi Honma, Yokkaichi, JP;
SANDISK TECHNOLOGIES LLC, Plano, TX (US);
Abstract
A monolithic three-dimensional memory device includes a plurality of memory stack structures arranged in a hexagonal lattice and located over a substrate. The hexagonal lattice structure is defined by hexagons each having a pair of sides that are parallel to a first horizontal direction and perpendicular to a second horizontal direction, the memory stack structures are located at vertices of the hexagonal lattice, and each memory stack structure includes vertically spaced memory elements and a vertical semiconductor channel. Source contact via structures are located at each center of a subset of the hexagons that forms a one-dimensional array that extends along the second horizontal direction, each source contact via structure being electrically shorted to a respective source region over, or within, the substrate.