Invention Grant
- Patent Title: Semiconductor memory device with efficient inclusion of control circuits
-
Application No.: US15905256Application Date: 2018-02-26
-
Publication No.: US10347690B2Publication Date: 2019-07-09
- Inventor: Shingo Nakazawa , Tsuneo Inaba , Hiroyuki Takenaka
- Applicant: TOSHIBA MEMORY CORPORATION
- Applicant Address: JP Tokyo
- Assignee: Toshiba Memory Corporation
- Current Assignee: Toshiba Memory Corporation
- Current Assignee Address: JP Tokyo
- Agency: Kim & Stewart LLP
- Priority: JP2017-176073 20170913
- Main IPC: H01L27/22
- IPC: H01L27/22 ; H01L27/24 ; G11C13/00

Abstract:
A semiconductor memory device includes memory cell arrays that include a plurality of memory cells. A first control circuit with control transistors of a first conductivity type is in a first region below the memory cell arrays. A second control circuit includes a first transistor of a first conductivity type connected in parallel to a second transistor of a second conductivity type. One of the first and second transistors is connected to an end of at least one control transistor. The second control circuit delivers a voltage to the plurality of control transistors. The first transistor is disposed in the first region. The second transistor is disposed in a second region adjacent to the first region. The second region is below a gap between adjacent memory cell arrays.
Public/Granted literature
- US20190081101A1 SEMICONDUCTOR MEMORY DEVICE Public/Granted day:2019-03-14
Information query
IPC分类: