Invention Grant
- Patent Title: Three-dimensional memory device with vertical field effect transistors and method of making thereof
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Application No.: US17007761Application Date: 2020-08-31
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Publication No.: US11296113B2Publication Date: 2022-04-05
- Inventor: Kwang-Ho Kim , Peter Rabkin
- Applicant: SANDISK TECHNOLOGIES LLC
- Applicant Address: US TX Addison
- Assignee: SANDISK TECHNOLOGIES LLC
- Current Assignee: SANDISK TECHNOLOGIES LLC
- Current Assignee Address: US TX Addison
- Agency: The Marbury Law Group PLLC
- Main IPC: H01L27/11582
- IPC: H01L27/11582 ; H01L23/528 ; H01L27/11519 ; H01L27/11524 ; H01L23/522 ; H01L27/1157 ; H01L29/66 ; H01L29/78 ; H01L27/11565 ; H01L27/11556

Abstract:
A semiconductor structure includes at least one set of vertical field effect transistors embedded within dielectric material layers overlying a substrate. Each vertical field effect transistor includes a bottom doped semiconductor electrode, a vertical transistor channel, a cylindrical gate dielectric, and a top doped semiconductor electrode. A three-dimensional NAND memory array can be provided over the first field effect transistors, and can be electrically connected to the vertical field effect transistors via metal interconnect structures. Alternatively, a three-dimensional NAND memory array can be formed on another substrate, which can be bonded to the substrate via metal-to-metal bonding. The vertical field effect transistors can be employed as switches for bit lines, word lines, or other components of the three-dimensional NAND memory array.
Public/Granted literature
- US20220068954A1 THREE-DIMENSIONAL MEMORY DEVICE WITH VERTICAL FIELD EFFECT TRANSISTORS AND METHOD OF MAKING THEREOF Public/Granted day:2022-03-03
Information query
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