JPWO2015177891A1 - 半導体装置の製造方法 - Google Patents
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 13
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- 238000000206 photolithography Methods 0.000 description 1
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Abstract
Description
本発明のその他の特徴は以下に明らかにする。
本発明の実施の形態1に係る半導体装置の製造方法では、まず、素子形成工程を実施する。図1は、素子形成工程後の被処理物10(ウエハ)の斜視図である。被処理物10は、シリコンで形成された基板12を備えている。素子形成工程では、基板12に対して、CVD、イオン注入、熱処理、スパッタ、フォトリソグラフィ、及びエッチングなどの処理を施し、基板12の表面に素子構造14を形成する。素子構造14は、トランジスタ、抵抗素子及びキャパシタを含み、全体として集積回路(IC)を形成している。素子構造14の最上層には配線層が形成されている。
図5は、本発明の実施の形態2に係る被処理物100の斜視図である。裏面構造102は、第1層104、第2層106及び第3層108を備えている。第1層104は、外部に露出したシリコン酸化膜である。第2層106は、第1層104に接するポリシリコンである。第2層106(ポリシリコン)は第1層104(シリコン酸化膜)よりも屈折率が大きい。第3層108は、第2層106と基板12の間のシリコン酸化膜である。裏面構造102は素子形成工程において素子構造14を形成する際に形成されたものである。
実施の形態1、2では第1層の層厚を調整して赤外線放射率を高く保つことを説明した。第1層の層厚を調整する必要が生じるのは、異なる屈折率を有する複数の層で裏面構造が構成されるからである。そこで、実施の形態3では、成膜工程における裏面構造の屈折率を均一にする。
Claims (8)
- 基板の表面に素子構造を形成するとともに、前記基板の裏面に裏面構造を形成する素子形成工程と、
前記裏面構造に波長λiの赤外線を入射させて前記基板の赤外線放射率を得る放射温度計を用いて前記基板の温度を測定しつつ、前記素子構造の表面に成膜する成膜工程と、を備え、
前記裏面構造は、外部に露出する第1層と、前記第1層に接し前記第1層よりも屈折率が小さい第2層を有し、
前記成膜工程での前記第1層の層厚を、nを正の偶数としたとき、(2n−1)λi/8から(2n+1)λi/8の範囲としたことを特徴とする半導体装置の製造方法。 - 前記素子構造は、トランジスタと抵抗素子を含み、
前記裏面構造は、前記第2層と前記基板の間に第3層を備え、
前記第3層は、前記トランジスタのゲート電極の成膜時に形成されるポリシリコンであり、
前記第2層は、前記ゲート電極のパターニング用の酸化膜の成膜時に形成されるシリコン酸化膜であり、
前記第1層は、前記抵抗素子の材料の成膜時に形成されるポリシリコンであることを特徴とする請求項1に記載の半導体装置の製造方法。 - 前記成膜工程の前に、前記第1層の層厚を薄くして、前記第1層の層厚を、nを正の偶数としたとき、(2n−1)λi/8から(2n+1)λi/8の範囲とする薄膜化工程を備えたことを特徴とする請求項1又は2に記載の半導体装置の製造方法。
- 基板の表面に素子構造を形成するとともに、前記基板の裏面に裏面構造を形成する素子形成工程と、
前記裏面構造に波長λiの赤外線を入射させて前記基板の赤外線放射率を得る放射温度計を用いて前記基板の温度を測定しつつ、前記素子構造の表面に成膜する成膜工程と、を備え、
前記裏面構造は、外部に露出する第1層と、前記第1層に接し前記第1層よりも屈折率が大きい第2層を有し、
前記成膜工程での前記第1層の層厚を、nを正の奇数としたとき、(2n−1)λi/8から(2n+1)λi/8の範囲としたことを特徴とする半導体装置の製造方法。 - 前記成膜工程の前に、前記第1層の層厚を薄くして、前記第1層の層厚を、nを正の奇数としたとき、(2n−1)λi/8から(2n+1)λi/8の範囲とする薄膜化工程を備えたことを特徴とする請求項4に記載の半導体装置の製造方法。
- 前記素子構造は配線層を有し、
前記成膜工程では、高密度プラズマCVD法により、前記配線層の層間絶縁膜を形成することを特徴とする請求項1〜5のいずれか1項に記載の半導体装置の製造方法。 - 基板の表面に素子構造を形成するとともに、前記基板の裏面に裏面構造を形成する素子形成工程と、
前記裏面構造に赤外線を入射させて前記基板の赤外線放射率を得る放射温度計を用いて前記基板の温度を測定しつつ、前記素子構造の表面に成膜する成膜工程と、を備え、
前記素子形成工程では、前記素子形成工程終了時に前記裏面構造の屈折率が均一となるように、前記基板の裏面側に形成された層の一部を除去することを特徴とする半導体装置の製造方法。 - 前記成膜工程での前記裏面構造は、ポリシリコン、シリコン酸化膜又はシリコン窒化膜で形成されたことを特徴とする請求項7に記載の半導体装置の製造方法。
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PCT/JP2014/063499 WO2015177891A1 (ja) | 2014-05-21 | 2014-05-21 | 半導体装置の製造方法 |
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WO2003038384A1 (fr) * | 2001-10-30 | 2003-05-08 | Matsushita Electric Industrial Co., Ltd. | Procede de mesure de temperature, procede de traitement thermique et procede de fabrication de dispositif a semi-conducteur |
JP2003322567A (ja) * | 2002-02-28 | 2003-11-14 | Shin Etsu Handotai Co Ltd | 温度測定システム、それを用いた加熱装置及び半導体ウェーハの製造方法 |
JP2009212199A (ja) * | 2008-03-03 | 2009-09-17 | Canon Anelva Corp | 基板表面温度計測方法、及び、これを用いた基板処理装置 |
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JPH07159246A (ja) | 1993-12-09 | 1995-06-23 | Tokai Carbon Co Ltd | 半導体ウエハーの温度測定方法 |
JPH10111178A (ja) * | 1996-10-08 | 1998-04-28 | Nikon Corp | 熱型赤外線センサ及びこれを用いたイメージセンサ |
JP2006276028A (ja) | 2001-10-30 | 2006-10-12 | Matsushita Electric Ind Co Ltd | 温度測定方法 |
JP3977244B2 (ja) * | 2002-12-25 | 2007-09-19 | 沖電気工業株式会社 | 半導体ウエハの赤外線放射率の測定方法 |
JP2005266537A (ja) * | 2004-03-19 | 2005-09-29 | Stanley Electric Co Ltd | 赤外線透過フィルタ及び該赤外線透過フィルタを具備する赤外線投光器 |
CN1964063B (zh) * | 2005-11-10 | 2013-05-29 | 香港科技大学 | 适用于有机发光二极管显示器的多晶硅薄膜象素电极 |
JP4746983B2 (ja) * | 2005-12-28 | 2011-08-10 | 株式会社堀場製作所 | シリコンウエハの温度測定方法 |
EP2397873A4 (en) * | 2009-02-13 | 2012-09-05 | Panasonic Corp | OPTICAL IR FILTER AND MANUFACTURING METHOD THEREFOR |
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WO2003038384A1 (fr) * | 2001-10-30 | 2003-05-08 | Matsushita Electric Industrial Co., Ltd. | Procede de mesure de temperature, procede de traitement thermique et procede de fabrication de dispositif a semi-conducteur |
JP2003322567A (ja) * | 2002-02-28 | 2003-11-14 | Shin Etsu Handotai Co Ltd | 温度測定システム、それを用いた加熱装置及び半導体ウェーハの製造方法 |
JP2009212199A (ja) * | 2008-03-03 | 2009-09-17 | Canon Anelva Corp | 基板表面温度計測方法、及び、これを用いた基板処理装置 |
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KR101943179B1 (ko) | 2019-01-28 |
JP6119917B2 (ja) | 2017-04-26 |
KR20160141853A (ko) | 2016-12-09 |
DE112014006683B4 (de) | 2019-10-02 |
US20170040229A1 (en) | 2017-02-09 |
DE112014006683T5 (de) | 2017-03-09 |
CN106415804B (zh) | 2020-03-27 |
WO2015177891A1 (ja) | 2015-11-26 |
CN106415804A (zh) | 2017-02-15 |
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