Invention Grant
- Patent Title: Semiconductor memory device with a three-dimensional stacked memory cell structure
-
Application No.: US16047811Application Date: 2018-07-27
-
Publication No.: US10586806B2Publication Date: 2020-03-10
- Inventor: Tomoo Hishida , Yoshihisa Iwata
- Applicant: TOSHIBA MEMORY CORPORATION
- Applicant Address: JP Minato-ku
- Assignee: TOSHIBA MEMORY CORPORATION
- Current Assignee: TOSHIBA MEMORY CORPORATION
- Current Assignee Address: JP Minato-ku
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2011-143500 20110628
- Main IPC: G11C16/04
- IPC: G11C16/04 ; H01L27/11582 ; G11C5/06 ; G11C8/12 ; G11C7/18 ; G11C5/02 ; H01L27/10 ; H01L23/528 ; H01L27/11575 ; H01L29/792 ; H01L27/11568 ; G11C5/04

Abstract:
A semiconductor memory device comprises: a semiconductor substrate; a plurality of memory units provided on the semiconductor substrate and each including a plurality of memory cells that are stacked; and a plurality of bit lines formed above each of a plurality of the memory units aligned in a column direction, an alignment pitch in a row direction of the plurality of bit lines being less than an alignment pitch in the row direction of the memory units, and an end of each of the memory units aligned in the column direction being connected to one of the plurality of bit lines formed above the plurality of the memory units aligned in the column direction.
Public/Granted literature
- US20180337194A1 SEMICONDUCTOR MEMORY DEVICE WITH A THREE-DIMENSIONAL STACKED MEMORY CELL STRUCTURE Public/Granted day:2018-11-22
Information query