Invention Application
- Patent Title: SEMICONDUCTOR MEMORY DEVICE
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Application No.: US17692920Application Date: 2022-03-11
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Publication No.: US20220352188A1Publication Date: 2022-11-03
- Inventor: Ryo FUKUOKA , Fumitaka ARAI , Kouji MATSUO , Hiroaki KOSAKO , Keiji HOSOTANI , Takayuki KAKEGAWA , Shinya NAITO , Shinji MORI
- Applicant: Kioxia Corporation
- Applicant Address: JP Tokyo
- Assignee: Kioxia Corporation
- Current Assignee: Kioxia Corporation
- Current Assignee Address: JP Tokyo
- Priority: JP2021-076886 20210428
- Main IPC: H01L27/11519
- IPC: H01L27/11519 ; H01L27/11556 ; G11C16/26

Abstract:
A semiconductor memory device includes a first semiconductor layer, first conductive layers, electric charge accumulating portions, a first conductivity-typed second semiconductor layer, a first wiring, a second conductivity-typed third semiconductor layer, and a second conductive layer. The first semiconductor layer extends in a first direction. First conductive layers are arranged in the first direction and extend in a second direction. Electric charge accumulating portions are disposed between the first semiconductor layer and first conductive layers. The second semiconductor layer is connected to one end of the first semiconductor layer. The first wiring is connected to the first semiconductor layer via the second semiconductor layer. The third semiconductor layer is connected to a side surface in a third direction of the first semiconductor layer. The second conductive layer extends in the second direction and is connected to the first semiconductor layer via the third semiconductor layer.
Information query
IPC分类: