JP6934540B2 - 半導体装置の製造方法 - Google Patents
半導体装置の製造方法 Download PDFInfo
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- JP6934540B2 JP6934540B2 JP2019569016A JP2019569016A JP6934540B2 JP 6934540 B2 JP6934540 B2 JP 6934540B2 JP 2019569016 A JP2019569016 A JP 2019569016A JP 2019569016 A JP2019569016 A JP 2019569016A JP 6934540 B2 JP6934540 B2 JP 6934540B2
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- Inorganic Chemistry (AREA)
- Semiconductor Memories (AREA)
- Drying Of Semiconductors (AREA)
- Semiconductor Integrated Circuits (AREA)
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Description
・エッチング温度:20〜100℃
・エッチング時間:10〜60sec
・エッチング温度:20〜100℃
・エッチング時間:10〜60sec
・エッチング温度:100〜350℃
・エッチング時間:20〜60sec
・ライナー膜7の材料:TiN
・形成温度:200〜600℃
・厚み:0.5nm〜2.0nm
・原料ガス:TiCl4+N2/N2(基板表面上に交互供給)
・導電材料8の材料:Ru
・形成温度:200〜500℃
・Z軸方向の最大厚み:30〜60nm
・原料ガス:ルテニウムカルボニル(Ru3(CO)12)
・キャリアガス:Ar
図12は、ロジック・スタンダード・セルの中間体の縦断面図である。
・エッチング温度:20〜100℃
・エッチング時間:30sec〜240sec
・堆積材料:TEOS(オルトケイ酸テトラエチル)、O2
・堆積時間:10sec〜1800sec
・形成温度:400〜900℃
・酸化時間:1Hour
・エッチング温度:20〜100℃
・エッチング時間:5〜60sec
図17は、ロジック・スタンダード・セルの中間体の縦断面図である。
・エッチング温度:20〜100℃
・エッチング時間:5〜120sec
・エッチング温度:20〜120℃
・エッチング時間:5〜300sec
・反応ガス:(SiH4、CH4、H2、N2)、又は、(N2、(CH3)3Si-NH-Si(CH3)3(ヘキサメチルジシラザン(HMDS)))
・形成温度:200〜600℃
・形成時間:10〜300sec
・材料:レジスト
・形成方法:スピンコート
・エッチングガス:CF4およびH2O
・エッチング温度:20〜100℃
・エッチング時間:5〜300sec
・エッチング温度:20〜100℃
・エッチング時間:10〜60sec
・不純物ガス:B(ボロン)含有ガス
・成長温度:550〜700℃
・成長時間:15〜60min
・原料ガス:SiH4、C2H4
・不純物ガス:N2
・成長温度:1300〜1800℃
・成長時間:60〜120min
なお、不純物ガスとして、N2の他に、N型不純物となるP、As、又はSbなどを含んだガスを用いることができる。なお、P型の半導体を形成する場合は、B、AlなどのP型の不純物を用いる。
・原材料: TEOS(オルトケイ酸テトラエチル)、O2
・形成温度:400〜900℃
・形成時間:5〜12hours
なお、PVD法又はスピンコートを用いても、酸化膜16を形成することができる。CVD法の形成温度は、300〜1200℃に設定することもでき、O2に代えて、O3を用いることもできる。ペルヒドロポリシラザンは、スピンコートによる塗布法において、用いることができる。
酸化膜16の形成後、化学機械研磨(CMP)により、酸化膜16の表面を平坦化する。
・エッチング温度:20〜120℃
・エッチング時間:5〜300sec
・原材料:SiH2Cl2およびNH3
・形成温度:300〜1200℃
・形成時間:10sec〜1800sec
・エッチング温度:20〜120℃
・エッチング時間:5〜300sec
・エッチング温度:20〜100℃
・エッチング時間:5〜100sec
・エッチングガス:CF4、O2
・エッチング温度:100〜350℃
・エッチング時間:20〜60sec
酸化膜16のエッチング方法は、ドライエッチングであり、この時のエッチングの具体的な条件は以下の通りである。
・エッチング温度:20〜100℃
・エッチング時間:5〜100sec
・エッチングガス:CF4
・エッチング温度:20〜100℃
・エッチング時間:5〜120sec
・エッチングガス:CO
・エッチング温度:100〜350℃
・エッチング時間:20〜60sec
・エッチングガス:第1のガスがC5F8、第2のガスがCF4
・エッチング温度:−20〜100℃
・エッチング時間:30〜120sec
・エッチング液:H3PO4
・エッチング温度:80〜200℃
・エッチング時間:5〜60min
・エッチング温度:20〜100℃
・エッチング時間:5〜120sec
・ライナー膜LF2の材料:TiN
・形成温度:200〜600℃
・厚み:0.5nm〜2.0nm
・原材料: TEOS(オルトケイ酸テトラエチル)、O2
・形成温度:400〜900℃
・形成時間:5〜1800sec
・原材料:(CH3)3Si-NH-Si(CH3)3(ヘキサメチルジシラザン(HMDS))、O2
・形成温度:400〜1200℃
・形成時間:5〜60min
・エッチング温度:20〜100℃
・エッチング時間:5〜300sec
・1%≦C(Cl2)/C(O2+Cl2)×100(%)≦20%、さらに好ましくは、
・9%≦C(Cl2)/C(O2+Cl2)×100(%)≦11%。
Claims (8)
- 電界効果トランジスタを構成するソース領域及びドレイン領域を含む半導体フィンと、
前記半導体フィンに併設された固定電位ラインと、
を備える半導体装置の製造方法において、
前記ソース領域、前記ドレイン領域、及び、前記固定電位ライン上に、絶縁層が設けられてなる中間体を用意する第1工程と、
前記絶縁層に、前記ソース領域、前記ドレイン領域、及び、前記固定電位ラインに向けて延びた複数のコンタクトホールを、同時に開ける第2工程と、
を備えることを特徴とする半導体装置の製造方法。 - 前記第2工程において、
複数のコンタクトホールは、第1コンタクトホール及び第2コンタクトホールを備え、 前記第1コンタクトホールは、前記ソース領域及び前記固定電位ラインに向けて延びており、
前記第2コンタクトホールは、前記ドレイン領域に向けて延びており、
前記第1コンタクトホール及び第2コンタクトホールは、同時に開けられる、
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。 - 前記複数のコンタクトホール内に、それぞれ、複数のコンタクト電極を形成する工程をさらに備える、
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。 - 前記絶縁層は、
アモルファスカーボン層を含む複数の絶縁層からなる、
ことを特徴とする請求項1乃至3のいずれか一項に記載の半導体装置の製造方法。 - 前記絶縁層は、
少なくとも第1窒化膜、アモルファスカーボン層、および第2窒化膜からなる、
ことを特徴とする請求項1乃至3のいずれか一項に記載の半導体装置の製造方法。 - 前記コンタクトホールを開ける第2工程は、
前記第1窒化膜および前記アモルファスカーボン層をエッチングする工程と、
前記第2窒化膜の一部をエッチングする工程と、
を含む、
ことを特徴とする請求項5に記載の半導体装置の製造方法。 - 前記第1窒化膜および前記アモルファスカーボン層をエッチングする工程は、
反応性イオンエッチング(RIE)を実行することでなされ、
前記第2窒化膜の一部をエッチングする工程は原子層エッチングを実行することでなされる、
ことを特徴とする請求項6に記載の半導体装置の製造方法。 - 前記第1窒化膜および前記アモルファスカーボン層をエッチングする工程と、
前記第2窒化膜の一部をエッチングする工程は、
同一容器内で実行される、
ことを特徴とする請求項6又は7に記載の半導体装置の製造方法。
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JP2001217407A (ja) | 2000-02-02 | 2001-08-10 | Hitachi Ltd | 半導体集積回路装置およびその製造方法 |
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CN102668063B (zh) * | 2009-11-20 | 2015-02-18 | 株式会社半导体能源研究所 | 半导体装置 |
JP2011129771A (ja) * | 2009-12-18 | 2011-06-30 | Elpida Memory Inc | 半導体装置及びその製造方法 |
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US9041115B2 (en) * | 2012-05-03 | 2015-05-26 | Taiwan Semiconductor Manufacturing Company, Ltd. | Structure for FinFETs |
US9378975B2 (en) | 2014-02-10 | 2016-06-28 | Tokyo Electron Limited | Etching method to form spacers having multiple film layers |
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-
2019
- 2019-01-21 WO PCT/JP2019/001682 patent/WO2019151018A1/ja active Application Filing
- 2019-01-21 US US16/963,362 patent/US11282753B2/en active Active
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US20200365468A1 (en) | 2020-11-19 |
US11282753B2 (en) | 2022-03-22 |
TW201937606A (zh) | 2019-09-16 |
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