Invention Grant
- Patent Title: Closed-loop multiple-output radio frequency (RF) matching
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Application No.: US17594906Application Date: 2020-04-30
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Publication No.: US12136938B2Publication Date: 2024-11-05
- Inventor: Eller Y. Juco , Karl Frederick Leeser
- Applicant: Lam Research Corporation
- Applicant Address: US CA Fremont
- Assignee: Lam Research Corporation
- Current Assignee: Lam Research Corporation
- Current Assignee Address: US CA Fremont
- Agency: Weaver Austin Villeneuve & Sampson LLP
- International Application: PCT/US2020/030835 WO 20200430
- International Announcement: WO2020/227028 WO 20201112
- Main IPC: H04B1/04
- IPC: H04B1/04 ; G01R27/06 ; H01J37/32

Abstract:
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.
Public/Granted literature
- US20220190854A1 CLOSED-LOOP MULTIPLE-OUTPUT RADIO FREQUENCY (RF) MATCHING Public/Granted day:2022-06-16
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