JPWO2012063342A1 - 半導体装置の製造方法 - Google Patents
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Abstract
Description
図1は、実施例の製造方法により製造される半導体装置10の縦断面図を示している。半導体装置10は、シリコンからなる半導体基板12と、半導体基板12の上面及び下面に形成されている金属層及び絶縁層等を備えている。半導体基板12には、ダイオード領域20とIGBT領域40が形成されている。なお、以下の説明では、ダイオード領域20からIGBT領域40に向かう方向をX方向といい、半導体基板12の厚さ方向をZ方向といい、X方向とZ方向の両方に直交する方向をY方向という。
Claims (5)
- 半導体装置の製造方法であって、
半導体基板の有効領域に向けて光を照射する工程を有しており、
前記光の波長は、前記光の強度が高くなると半導体基板の光吸収率が高くなる波長であり、
前記工程では、半導体基板の内部で焦点が形成されるように光を照射する、
ことを特徴とする製造方法。 - 前記工程において、前記焦点を半導体基板の深さ方向に移動させることを特徴とする請求項1に記載の製造方法。
- 前記半導体基板には、IGBTが形成されており、
前記工程において、IGBTのドリフト領域内に焦点を形成することを特徴とする請求項1または2に記載の製造方法。 - 前記半導体基板には、ダイオードが形成されており、
前記工程において、ダイオードのドリフト領域内に焦点を形成することを特徴とする請求項1または2に記載の製造方法。 - 前記半導体基板には、IGBTとダイオードが形成されており、
IGBTのドリフト領域とダイオードのドリフト領域が連続しており、
前記工程において、IGBTのドリフト領域とダイオードのドリフト領域の間で焦点を移動させることを特徴とする請求項1または2に記載の製造方法。
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PCT/JP2010/070055 WO2012063342A1 (ja) | 2010-11-10 | 2010-11-10 | 半導体装置の製造方法 |
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JP5472462B2 JP5472462B2 (ja) | 2014-04-16 |
JPWO2012063342A1 true JPWO2012063342A1 (ja) | 2014-05-12 |
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US (1) | US8748236B2 (ja) |
EP (1) | EP2657958B1 (ja) |
JP (1) | JP5472462B2 (ja) |
CN (1) | CN102870201B (ja) |
WO (1) | WO2012063342A1 (ja) |
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JP5605073B2 (ja) * | 2010-08-17 | 2014-10-15 | 株式会社デンソー | 半導体装置 |
JP5881322B2 (ja) * | 2011-04-06 | 2016-03-09 | ローム株式会社 | 半導体装置 |
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- 2010-11-10 WO PCT/JP2010/070055 patent/WO2012063342A1/ja active Application Filing
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WO2012063342A1 (ja) | 2012-05-18 |
EP2657958B1 (en) | 2016-02-10 |
EP2657958A1 (en) | 2013-10-30 |
US20120309208A1 (en) | 2012-12-06 |
EP2657958A4 (en) | 2014-04-16 |
US8748236B2 (en) | 2014-06-10 |
CN102870201B (zh) | 2016-01-13 |
CN102870201A (zh) | 2013-01-09 |
JP5472462B2 (ja) | 2014-04-16 |
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