KR101881536B1 - 출력전류 제어가 가능한 전력공급장치 및 이를 이용한 전력공급방법 - Google Patents
출력전류 제어가 가능한 전력공급장치 및 이를 이용한 전력공급방법 Download PDFInfo
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- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes
- H01J37/32009—Arrangements for generation of plasma specially adapted for examination or treatment of objects, e.g. plasma sources
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- H—ELECTRICITY
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- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
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- H—ELECTRICITY
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- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
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- H01J37/32009—Arrangements for generation of plasma specially adapted for examination or treatment of objects, e.g. plasma sources
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- H02M3/10—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
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- H02M5/00—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases
- H02M5/40—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC
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Abstract
Description
도 2는 종래의 공진 네트워크 및 플라즈마 발생기의 공진 네트워크를 도시한 회로도이다.
도 3은 본 발명의 전력공급장치, 플라즈마 발생기 및 공정챔버의 연결구조를 설명하기 위한 도면이다.
도 4는 본 발명의 바람직한 실시예에 따른 공진 네트워크 및 플라즈마 발생기를 도시한 회로도이다.
도 5는 위상천이 방식을 적용한 경우의 공진 네트워크 및 플라즈마 발생기를 도시한 회로도이다.
도 6은 위상천이 각에 따른 인버터 전압(Vo) 파형을 도시한 도면이다.
도 7은 위상천이 각에 따른 전류, 전압 파형을 도시한 그래프이다.
8은 인버터의 전압, 전류의 위상차이와 출력전류를 나타낸 그래프이다.
도 9는 위상천이 각에 따른 전력공급장치에서의 출력전류 변화를 나타낸 그래프이다.
도 10은 공진 네트워크의 다른 실시예를 도시한 도면이다.
도 11은 종래 및 본 발명의 바람직한 실시예에 따른 전력공급장치의 인버터 전압, 전류의 위상 및 전류의 크기를 비교한 그래프이다
도 12는 본 발명의 바람직한 다른 실시예에 따른 공진 네트워크 및 플라즈마 발생기 도시한 회로도이다.
도 13은 본 발명의 바람직한 또 다른 실시예에 따른 공진 네트워크 및 플라즈마 발생기를 도시한 회로도이다.
21: 가스 주입구 22: 플라즈마 방전 채널
23: 가스 배출구 24: 몸체
29: 어댑터 30: 공정챔버
32: 서셉터 34: 피처리 기판
35: 배기구 36: 배기펌프
40: 변압기 42: 일차 권선
44: 페라이트 코어 50: 스위칭 전원
52: 정류기 54: 인버터
56: 위상 변환기 60: 공진 네트워크
62: 공진 인덕터 64: 공진 캐패시터
Claims (11)
- 플라즈마 발생기 내로 플라즈마를 유지하기 위한 전력공급장치에 있어서,
정류기, 인버터 및 위상 변환기를 구비하는 스위칭 전원;
상기 플라즈마 발생기에 결합되는 페라이트 코어 및 상기 페라이트 코어에 권선되는 일차 권선을 포함하는 변압기;
상기 스위칭 전원과 상기 변압기 사이에 연결되고, 상기 일차 권선과 직렬로 연결되는 공진 인덕터 및 상기 일차 권선에 병렬로 연결되며 상기 공진 인덕터와 직렬로 연결되는 공진 캐패시터를 구비하는 공진 네트워크; 및
상기 공진 네트워크로 제공되는 전압 전류를 위상천이하기 위하여 상기 스위칭 전원을 제어하는 제어부를 포함하고,
상기 공진 네트워크는 상기 공진 캐패시터와 일단이 직렬로 연결되고 타단이 접지로 연결되어 상기 인버터의 출력을 조절하기 위한 인덕터를 더 포함하는,
출력전류 제어가 가능한 전력공급장치. - 삭제
- 삭제
- 제1항에 있어서,
상기 공진 캐패시터와 직렬로 연결된 상기 인덕터는 상기 인버터의 전압 및 전류의 크기를 제어할 수 있도록 가변 인덕터로 구성되는, 출력전류 제어가 가능한 전력공급장치. - 삭제
- 삭제
- 제1항에 있어서,
상기 스위칭 전원은,
하프 브리지 인버터를 포함하는 출력전류 제어가 가능한 전력공급장치. - 제1항에 있어서,
상기 스위칭 전원은,
풀 브리지 인버터를 포함하는 출력전류 제어가 가능한 전력공급장치. - 제1항, 제4항, 제7항 및 제8항 중 어느 한 항에 따른 출력전류 제어가 가능한 전력공급장치를 이용하여 상기 플라즈마 발생기 내로 플라즈마를 유지하기 위한 전력을 제공하는 방법에 있어서,
상기 제어부를 통해 상기 공진 네트워크에서 최대 출력전류가 출력될 수 있는 상기 공진 인덕터와 상기 공진 캐패시터 값을 확인하는 단계;
상기 제어부를 통해 상기 공진 네트워크에서 최소 출력전류가 출력될수 있는 최대 위상천이 각도를 확인하는 단계;
상기 최대 위상천이 각도에서 영전압 스위칭(ZVS:Zero Voltage Switching)이 가능한 상기 인버터의 전압, 전류의 위상을 확인하는 단계; 및
상기 제어부를 이용하여 상기 인버터의 출력 전류를 제어하는 단계를 포함하는 출력전류 제어가 가능한 전력공급장치를 이용한 전력공급방법.
- 삭제
- 삭제
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KR1020170024655A KR101881536B1 (ko) | 2017-02-24 | 2017-02-24 | 출력전류 제어가 가능한 전력공급장치 및 이를 이용한 전력공급방법 |
CN201710638057.8A CN108511311B (zh) | 2017-02-24 | 2017-07-31 | 能够控制输出电流的供电装置及利用其的供电方法 |
US15/664,520 US10276344B2 (en) | 2017-02-24 | 2017-07-31 | Power supply apparatus able to control output current and power supply method using the same |
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KR102208579B1 (ko) | 2020-03-18 | 2021-01-27 | 김동한 | 레벨 검출 장치 |
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US11075591B2 (en) * | 2017-05-02 | 2021-07-27 | Dr. Hielscher Gmbh | Device for integrating electric conductors into low-frequency electric tank circuits |
JP2019186098A (ja) * | 2018-04-12 | 2019-10-24 | 東京エレクトロン株式会社 | プラズマを生成する方法 |
WO2020185353A1 (en) * | 2019-03-13 | 2020-09-17 | Applied Materials, Inc. | Plasma ignition circuit |
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