KR102320188B1 - 분해 검출 장치, 농도 측정 장치 및 농도 제어 장치 - Google Patents
분해 검출 장치, 농도 측정 장치 및 농도 제어 장치 Download PDFInfo
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Abstract
Description
도 2는 실시 형태에 있어서의 흡광도 측정 기구의 상세를 나타내는 모식도이다.
도 3은 실시 형태에 있어서의 농도 제어 장치의 모식적 기능 블록도이다.
도 4는 동 실시 형태에 있어서의 흡광도와 분해와의 관계를 설명하기 위한 모식적 그래프이다.
도 5는 동 실시 형태에 있어서의 농도 제어 장치의 동작을 나타내는 순서도이다.
도 6은 그 외의 실시 형태에 있어서의 흡광도와 분해와의 관계를 설명하기 위한 모식적 그래프이다.
도 7은 그 외의 실시 형태에 있어서의 흡광도 측정 기구의 상세를 나타내는 모식도이다.
200 … 농도 측정 장치
100 … 분해 검출 장치
1 … 흡광도 측정기구
2 … 조정 밸브
P … 압력 센서
COM … 제어 기구
3 … 농도 산출부
4 … 분해 검출부
5 … 밸브 제어부
51 … 목표 전압 설정부
52 … 조작량 산출부
53 … 전압(電壓) 인가부
B … 버블링 시스템
B1 … 탱크
B2 … 도입관
B3 … 도출관
Claims (9)
- 반도체 재료가 기화(氣化)한 재료 가스를 포함하는 혼합 가스에 대해서, 상기 반도체 재료가 흡수하는 파장의 흡광도(吸光度)인 제1 흡광도와, 상기 반도체 재료가 분해되었을 때 생기는 물질이 흡수하는 파장의 흡광도인 제2 흡광도를 측정하는 NDIR 방식 또는 레이저 흡수 분광 방식의 흡광도 측정 기구와,
상기 제1 흡광도와 상기 제2 흡광도에 기초하여, 상기 반도체 재료의 분해를 검출하는 분해 검출부를 구비한 것을 특징으로 하는 분해 검출 장치. - 청구항 1에 있어서,
상기 분해 검출부가, 상기 반도체 재료에 분해가 발생하지 않은 상태에서 측정된 상기 제1 흡광도와 상기 제2 흡광도의 비와, 현재의 제1 흡광도와 제2 흡광도 비의 비교 결과에 기초하여 상기 반도체 재료의 분해를 검출하도록 구성되어 있는 분해 검출 장치. - 청구항 1에 있어서,
상기 분해 검출부가, 상기 반도체 재료에 분해가 발생하지 않은 상태에서 측정된 상기 제1 흡광도와 상기 제2 흡광도의 차와, 현재의 제1 흡광도와 제2 흡광도의 차의 비교 결과에 기초하여 상기 반도체 재료의 분해를 검출하도록 구성되어 있는 분해 검출 장치. - 청구항 1에 있어서,
상기 분해 검출부가, 동시각(同時刻)에 있어서의 상기 제1 흡광도의 증감 경향과 상기 제2 흡광도의 증감 경향이 다른 경우에 상기 반도체 재료에 분해를 검출하도록 구성되어 있는 분해 검출 장치. - 청구항 1에 있어서,
상기 흡광도 측정 기구가,
혼합 가스가 통과하는 측정 셀과,
소정의 파장 대역폭을 가지는 광을 상기 측정 셀로 사출(射出)하는 광원부와,
상기 측정 셀을 통과한 광 중 상기 반도체 재료가 흡수하는 파장의 광을 통과시키는 제1 필터와,
상기 측정 셀을 통과한 광 중 상기 반도체 재료가 분해되었을 때 생기는 물질이 흡수하는 파장의 광을 통과시키는 제2 필터와,
상기 제1 필터 또는 상기 제2 필터를 통과한 광을 검출하는 광검출부를 구비한 NDIR 방식의 가스 분석계인 분해 검출 장치. - 청구항 1에 있어서,
상기 흡광도 측정 기구가,
혼합 가스가 통과하는 측정 셀과,
상기 반도체 재료가 흡수하는 파장의 레이저광과, 상기 반도체 재료가 분해되었을 때 생기는 물질이 흡수하는 파장의 레이저광을 상기 측정 셀로 사출하는 광원부와,
상기 측정 셀을 통과한 광을 검출하는 광검출부를 구비한 레이저 흡수 분광 방식의 가스 분석계인 분해 검출 장치. - 청구항 1에 있어서,
상기 반도체 재료가 유기 금속인 분해 검출 장치. - 청구항 1에 기재된 분해 검출 장치와,
상기 제1 흡광도에 기초하여, 상기 혼합 가스 중의 상기 재료 가스의 농도를 산출하는 농도 산출부를 구비한 농도 측정 장치. - 반도체 재료가 수용되는 탱크와, 상기 탱크 내에 캐리어 가스를 도입(導入)하는 도입관과, 상기 탱크로부터 재료 가스와 캐리어 가스를 포함하는 혼합 가스를 도출(導出)하는 도출관을 구비한 버블링 시스템(bubbling system)에 이용되는 농도 제어 장치로서,
청구항 8에 기재된 농도 측정 장치와,
상기 도출관에 마련되는 조정 밸브와,
미리 설정되는 목표 농도와, 상기 농도 측정 장치로 측정되는 재료 가스의 측정 농도에 기초하여 상기 조정 밸브를 제어하는 밸브 제어부를 구비한 농도 제어 장치.
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JP2014244540A JP6435175B2 (ja) | 2014-12-02 | 2014-12-02 | 分解検出装置、分解検出方法、分解検出装置用プログラム、濃度測定装置、及び、濃度制御装置 |
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JP6914063B2 (ja) * | 2017-03-10 | 2021-08-04 | 株式会社堀場エステック | ガス制御システム、該ガス制御システムを備えた成膜装置、該ガス制御システムに用いるプログラム及びガス制御方法。 |
KR102100822B1 (ko) | 2018-07-13 | 2020-04-14 | 주식회사 케이엔텍 | 흡광도를 이용한 농도 측정 방법 |
SG11202010408SA (en) * | 2018-07-31 | 2021-02-25 | Applied Materials Inc | Precursor delivery system and methods related thereto |
CN110487739A (zh) * | 2018-08-30 | 2019-11-22 | 中山大学 | Mocvd实时在线红外检测系统 |
JP7281285B2 (ja) * | 2019-01-28 | 2023-05-25 | 株式会社堀場エステック | 濃度制御装置、及び、ゼロ点調整方法、濃度制御装置用プログラム |
JP7221127B2 (ja) * | 2019-04-26 | 2023-02-13 | 株式会社堀場エステック | 吸光分析装置、及び、吸光分析装置用プログラム |
JP7498545B2 (ja) * | 2019-05-09 | 2024-06-12 | 株式会社堀場エステック | 吸光分析システム、吸光分析システム用プログラム、吸光分析装置、及び、吸光度測定方法 |
JP7011626B2 (ja) * | 2019-06-28 | 2022-01-26 | 株式会社堀場製作所 | 分析装置及び分析方法 |
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CN113075002A (zh) * | 2021-04-01 | 2021-07-06 | 江西师范大学 | 一种用于金属有机化合物微量杂质分析的分解方法 |
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