Invention Grant
- Patent Title: Semiconductor memory device
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Application No.: US18327973Application Date: 2023-06-02
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Publication No.: US12200939B2Publication Date: 2025-01-14
- Inventor: Kojiro Shimizu
- Applicant: Kioxia Corporation
- Applicant Address: JP Tokyo
- Assignee: Kioxia Corporation
- Current Assignee: Kioxia Corporation
- Current Assignee Address: JP Tokyo
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2020-034818 20200302
- Main IPC: H01L23/522
- IPC: H01L23/522 ; H01L21/768 ; H01L23/528 ; H01L27/115 ; H10B43/10 ; H10B43/27 ; H10B43/50

Abstract:
According to one embodiment, a semiconductor memory device includes first to second areas, a plurality of conductive layers, first to fourth members, and a plurality of pillars. The second area includes a first contact area including first to third sub-areas. The conductive layers include first to fourth conductive layers. The first conductive layer includes a first terrace portion in the first sub-area. The second conductive layer includes a second terrace portion in the third sub-area. The third conductive layer includes a third terrace portion in the first sub-area. The fourth conductive layer includes a fourth terrace portion in the third sub-area.
Public/Granted literature
- US20230309313A1 SEMICONDUCTOR MEMORY DEVICE Public/Granted day:2023-09-28
Information query
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