Invention Publication
- Patent Title: THREE-DIMENSIONAL MEMORY DEVICE AND METHOD
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Application No.: US18401988Application Date: 2024-01-02
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Publication No.: US20240138152A1Publication Date: 2024-04-25
- Inventor: Feng-Cheng Yang , Meng-Han Lin , Sheng-Chen Wang , Han-Jong Chia , Chung-Te Lin
- Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.
- Applicant Address: TW Hsinchu
- Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
- Current Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
- Current Assignee Address: TW Hsinchu
- Main IPC: H10B51/20
- IPC: H10B51/20 ; H01L21/3213 ; H01L21/768 ; H01L23/522 ; H10B51/30

Abstract:
In accordance with embodiments, a memory array is formed with a multiple patterning process. In embodiments a first trench is formed within a multiple layer stack and a first conductive material is deposited into the first trench. After the depositing the first conductive material, a second trench is formed within the multiple layer stack, and a second conductive material is deposited into the second trench. The first conductive material and the second conductive material are etched.
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