JP4410529B2 - 膜厚制御方法 - Google Patents
膜厚制御方法 Download PDFInfo
- Publication number
- JP4410529B2 JP4410529B2 JP2003356529A JP2003356529A JP4410529B2 JP 4410529 B2 JP4410529 B2 JP 4410529B2 JP 2003356529 A JP2003356529 A JP 2003356529A JP 2003356529 A JP2003356529 A JP 2003356529A JP 4410529 B2 JP4410529 B2 JP 4410529B2
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- layer
- reflected light
- growth
- light intensity
- film thickness
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- Length Measuring Devices By Optical Means (AREA)
- Chemical Vapour Deposition (AREA)
- Testing Or Measuring Of Semiconductors Or The Like (AREA)
Description
13 GaAs層
14 AlGaInP層
15,16 反射光
S1〜S5 膜厚制御方法の各ステップ
Claims (1)
- 光学定数が既知の材料からなる基準層に光を照射し、反射光を測定して第1の反射光強度を求める工程と、
前記基準層の上に成長中の成長層に光を照射し、反射光を測定して、前記成長層の表面での反射光と前記成長層と前記基準層の界面での反射光によって生じる干渉光の光強度変動の周期、減衰の時定数、干渉光の光強度変動が収束した状態での第2の反射光強度を求める工程と、
前記第2の反射光強度を前記第1の反射光強度で除算したものが前記成長層の反射率の二乗を前記基準層の反射率の二乗で除算したものに等しいという関係式と、前記基準層の前記光学定数及び前記反射率の関係式と、前記周期、前記減衰の時定数、前記成長層の反射率及び成長速度の関係式とから成長速度を求める工程と、
この求めた成長速度に基づいて、設定した膜厚が得られるように前記成長層の成長時間を調整する工程とを有することを特徴とする膜厚制御方法。
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JP2003356529A JP4410529B2 (ja) | 2003-10-16 | 2003-10-16 | 膜厚制御方法 |
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JP2003356529A JP4410529B2 (ja) | 2003-10-16 | 2003-10-16 | 膜厚制御方法 |
Publications (2)
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JP2005121482A JP2005121482A (ja) | 2005-05-12 |
JP4410529B2 true JP4410529B2 (ja) | 2010-02-03 |
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JP2003356529A Expired - Fee Related JP4410529B2 (ja) | 2003-10-16 | 2003-10-16 | 膜厚制御方法 |
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Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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DE112016004604B4 (de) | 2015-10-08 | 2024-06-06 | Nuflare Technology, Inc. | Dampfphasenwachstumsraten-Messvorrichtung, Dampfphasenwachstumsvorrichtung, und Wachstumsdetektionsverfahren |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0722132B2 (ja) * | 1986-02-15 | 1995-03-08 | ソニー株式会社 | 気相成長方法 |
JPH03197384A (ja) * | 1989-12-25 | 1991-08-28 | Nec Corp | 気相成長方法 |
JP2632239B2 (ja) * | 1990-10-31 | 1997-07-23 | 日亜化学工業株式会社 | 半導体結晶膜の成長方法および装置 |
JPH08139147A (ja) * | 1994-11-07 | 1996-05-31 | Mitsubishi Materials Corp | エピタキシャル膜の成膜速度の測定方法およびそ の装置 |
KR970053234A (ko) * | 1995-12-20 | 1997-07-31 | 양승택 | 화합물 반도체의 도핑특성을 실시간으로 감지하는 방법 |
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2003
- 2003-10-16 JP JP2003356529A patent/JP4410529B2/ja not_active Expired - Fee Related
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JP2005121482A (ja) | 2005-05-12 |
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