- 专利标题: Plasma processing apparatus and system
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申请号: US17707537申请日: 2022-03-29
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公开(公告)号: US12087591B2公开(公告)日: 2024-09-10
- 发明人: Gen Tamamushi , Kazuya Nagaseki
- 申请人: Tokyo Electron Limited
- 申请人地址: JP Tokyo
- 专利权人: TOKYO ELECTRON LIMITED
- 当前专利权人: TOKYO ELECTRON LIMITED
- 当前专利权人地址: JP Tokyo
- 代理机构: XSENSUS LLP
- 优先权: JP 18208005 2018.11.05 JP 19185832 2019.10.09
- 主分类号: H01L21/3065
- IPC分类号: H01L21/3065 ; H01J37/30 ; H01J37/32 ; H01L21/306 ; H01L21/3213 ; H01J37/305 ; H01L21/67
摘要:
A plasma processing apparatus includes a chamber; a substrate support disposed in the chamber and including a lower electrode; an upper electrode disposed above the substrate support; an RF source that supplies an RF power to the lower electrode or the upper electrode, the RF power having a plurality of power levels during a first sequence in a repeating time period, the plurality of power levels including a first power level during a first state and a second state, and a second power level during a third state and a fourth state; and a DC source that applies a DC voltage to the lower electrode, the DC voltage having a plurality of voltage levels during the first sequence in the repeating time period.
公开/授权文献
- US20220223427A1 PLASMA PROCESSING APPARATUS AND SYSTEM 公开/授权日:2022-07-14
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