Invention Grant
- Patent Title: Dielectric-metal stack for 3D flash memory application
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Application No.: US15959646Application Date: 2018-04-23
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Publication No.: US10475644B2Publication Date: 2019-11-12
- Inventor: Xinhai Han , Nagarajan Rajagopalan , Sung Hyun Hong , Bok Hoen Kim , Mukund Srinivasan
- Applicant: Applied Materials, Inc.
- Applicant Address: US CA Santa Clara
- Assignee: APPLIED MATERIALS, INC.
- Current Assignee: APPLIED MATERIALS, INC.
- Current Assignee Address: US CA Santa Clara
- Agency: Patterson + Sheridan LLP
- Main IPC: H01L21/02
- IPC: H01L21/02 ; H01L27/11556 ; H01L27/11582

Abstract:
A method is provided for forming a stack of film layers for use in 3D memory devices. The method starts with providing a substrate in a processing chamber of a deposition reactor. Then one or more process gases suitable for forming a dielectric layer are supplied into the processing chamber of the deposition reactor forming a dielectric layer on the substrate. Then one or more process gases suitable for forming a metallic layer are supplied into the processing chamber of the deposition reactor forming a metallic layer on the dielectric layer. Then one or more process gases suitable for forming a metallic nitride adhesion layer are supplied into the processing chamber of the deposition reactor forming a metallic nitride adhesion layer on the metallic layer. The sequence is then repeated to form a desired number of layers.
Public/Granted literature
- US20180247808A1 DIELECTRIC-METAL STACK FOR 3D FLASH MEMORY APPLICATION Public/Granted day:2018-08-30
Information query
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