- Patent Title: Method of selective deposition for forming fully self-aligned vias
-
Application No.: US17102054Application Date: 2020-11-23
-
Publication No.: US11658068B2Publication Date: 2023-05-23
- Inventor: Kandabara Tapily
- Applicant: Tokyo Electron Limited
- Applicant Address: JP Tokyo
- Assignee: Tokyo Electron Limited
- Current Assignee: Tokyo Electron Limited
- Current Assignee Address: JP Tokyo
- The original application number of the division: US16193833 2018.11.16
- Main IPC: H01L21/768
- IPC: H01L21/768 ; H01L21/02 ; H01L21/677 ; H01L21/67 ; C23C16/00 ; H01L21/3105 ; H01L21/321 ; H01L21/687 ; H01L21/32

Abstract:
Methods are provided for selective film deposition. One method includes providing a substrate containing a dielectric material and a metal layer, the metal layer having an oxidized metal layer thereon, coating the substrate with a metal-containing catalyst layer, treating the substrate with an alcohol solution that removes the oxidized metal layer from the metal layer along with the metal-containing catalyst layer on the oxidized metal layer, and exposing the substrate to a process gas containing a silanol gas for a time period that selectively deposits a SiO2 film on the metal-containing catalyst layer on the dielectric material.
Public/Granted literature
- US20210074584A1 METHOD OF SELECTIVE DEPOSITION FOR FORMING FULLY SELF-ALIGNED VIAS Public/Granted day:2021-03-11
Information query
IPC分类: