- 专利标题: CLOSED-LOOP MULTIPLE-OUTPUT RADIO FREQUENCY (RF) MATCHING
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申请号: US17594906申请日: 2020-04-30
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公开(公告)号: US20220190854A1公开(公告)日: 2022-06-16
- 发明人: Eller Y. Juco , Karl Frederick Leeser
- 申请人: Lam Research Corporation
- 申请人地址: US CA Fremont
- 专利权人: Lam Research Corporation
- 当前专利权人: Lam Research Corporation
- 当前专利权人地址: US CA Fremont
- 国际申请: PCT/US2020/030835 WO 20200430
- 主分类号: H04B1/04
- IPC分类号: H04B1/04 ; G01R27/06 ; H01J37/32
摘要:
An apparatus and method for performing closed-loop multiple-output control of radio frequency (RF) matching for a semiconductor wafer fabrication process is provided. An apparatus for providing signals to a station of a process chamber performs semiconductor fabrication processes. A plurality of signal generators generates signals having first and second frequencies. A measurement circuit measures a voltage standing wave ratio (VSWR). A match reflection optimizer has a reactive component configured to be adjusted responsive to an output signal from the measurement circuit.
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