JP7109581B2 - 半導体装置および半導体装置の製造方法 - Google Patents
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Description
図1は、実施の形態1における半導体装置の構成を示す平面図である。図2は、図1に示されるA-A’における半導体装置の構成を示す断面図である。図3は、図1に示されるB-B’における半導体装置の構成を示す断面図である。半導体装置は、半導体基板10と検査用配線40とで構成される。
実施の形態1の変形例における半導体装置において、検査用配線以外の構成は、実施の形態1の構成と同様である。図9は、実施の形態1の変形例における半導体装置の構成を示す断面図である。図9は、図1に示されたB-B’における半導体装置の断面に対応する。
実施の形態2における半導体装置および半導体装置の製造方法を説明する。なお、実施の形態1と同様の構成および動作については説明を省略する。
実施の形態3における半導体装置および半導体装置の製造方法を説明する。なお、実施の形態1または2と同様の構成および動作については説明を省略する。実施の形態3における半導体装置は、検査用配線40の一端41と接触しているn型半導体層の構成が、実施の形態1における半導体装置とは異なる。
実施の形態4における半導体装置および半導体装置の製造方法を説明する。なお、実施の形態1から3のいずれかと同様の構成および動作については説明を省略する。
Claims (16)
- 表面には、半導体素子を含む有効領域と前記有効領域の周囲に設けられる無効領域とを含み、裏面には、裏面電極を含む半導体基板と、
前記有効領域の外周を囲むように、前記半導体基板の前記表面の前記無効領域に設けられる検査用配線と、を備え、
前記検査用配線の一端が前記半導体基板の前記表面の前記無効領域に設けられた半導体層であって前記裏面電極に電気的に接続された前記半導体層に接触していることにより、前記検査用配線は前記裏面電極に電気的に接続され、
前記半導体層は、前記検査用配線の一端が接触するn型半導体層と、前記n型半導体層より前記半導体基板の前記裏面側にあるp型半導体層とを含む、
半導体装置。 - 前記検査用配線は、他端に検査用パッドを含み、
前記検査用パッドの幅は、前記一端から前記他端に延在する配線本体の幅よりも広い、請求項1に記載の半導体装置。 - 前記検査用配線は、前記有効領域の前記外周に設けられるチャネルストッパと前記半導体基板の外縁部との間に設けられ、
前記外縁部は、前記無効領域に定められるダイシングラインに対応する、請求項1または請求項2に記載の半導体装置。 - 前記検査用配線の厚さは、前記有効領域における前記半導体素子に接続されている配線の厚さよりも薄い、請求項1から請求項3のいずれか一項に記載の半導体装置。
- 前記検査用配線は、アルミニウムを含む、請求項1から請求項4のいずれか一項に記載の半導体装置。
- 前記検査用配線は、ポリシリコンを含む、請求項1から請求項5のいずれか一項に記載の半導体装置。
- 前記検査用パッドを除いて前記検査用配線を覆っている保護膜をさらに備える、請求項2に記載の半導体装置。
- 前記半導体素子は、前記裏面電極と、前記半導体基板の前記表面における前記有効領域に設けられる表面電極との間に流れる電流を制御するIGBT(Insulated Gate Bipolar Transistor)、MOSFET(Metal-Oxide-Semiconductor Field-Effect Transistor)またはダイオードを含む、請求項1から請求項7のいずれか一項に記載の半導体装置。
- 表面には、各々が半導体素子を含む有効領域と前記有効領域の周囲に設けられる無効領域とを含みかつマトリクス状に配置される複数のチップを含み、裏面には裏面電極を含む半導体ウエハを準備し、
前記半導体ウエハの前記表面の前記無効領域に設けられた半導体層であって前記裏面電極に電気的に接続された前記半導体層に一端が接触するように、かつ、前記有効領域の外周を囲むように、前記半導体ウエハの前記表面の前記無効領域に検査用配線を、形成し、
互いに隣り合う前記複数のチップの間の前記無効領域であって前記有効領域に対し前記検査用配線の外側における前記無効領域に定められるダイシングラインに沿って、前記半導体ウエハを切断して、前記複数のチップを個片化し、
前記複数のチップの各々における前記検査用配線と前記裏面電極との間に電圧を印加して、前記検査用配線と前記裏面電極との間に流れる電流を検出することにより、前記検査用配線と前記裏面電極との間の電気的接続状態を検査し、
前記半導体層は、前記検査用配線の一端が接触するn型半導体層と、前記n型半導体層より前記半導体ウエハの前記裏面側にあるp型半導体層とを含む、
半導体装置の製造方法。 - 前記検査用配線は、他端に検査用パッドを含み、
前記検査用パッドの幅は、前記一端から前記他端に延在する配線本体の幅よりも広く、
前記検査用パッドと前記裏面電極との間に前記電圧を印加することにより、前記検査用配線と前記裏面電極との間の前記電気的接続状態を検査する、請求項9に記載の半導体装置の製造方法。 - 前記検査用配線は、前記有効領域の前記外周に設けられるチャネルストッパと前記ダイシングラインとの間に形成される、請求項9または請求項10に記載の半導体装置の製造方法。
- 前記検査用配線の厚さは、前記有効領域における前記半導体素子に接続されている配線の厚さよりも薄い、請求項9から請求項11のいずれか一項に記載の半導体装置の製造方法。
- 前記検査用配線は、アルミニウムを含む、請求項9から請求項12のいずれか一項に記載の半導体装置の製造方法。
- 前記検査用配線は、ポリシリコンを含む、請求項9から請求項13のいずれか一項に記載の半導体装置の製造方法。
- 前記検査用パッドを除いて前記検査用配線を覆う保護膜をさらに形成する、請求項10に記載の半導体装置の製造方法。
- 前記半導体素子は、前記裏面電極と、前記半導体ウエハの前記表面における前記有効領域に設けられる表面電極との間に流れる電流を制御するIGBT、MOSFETまたはダイオードを含む、請求項9から請求項15のいずれか一項に記載の半導体装置の製造方法。
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JP2005277338A (ja) | 2004-03-26 | 2005-10-06 | Nec Electronics Corp | 半導体装置及びその検査方法 |
JP2010092924A (ja) | 2008-10-03 | 2010-04-22 | Sharp Corp | 半導体装置及び半導体装置検査方法 |
JP2012227210A (ja) | 2011-04-15 | 2012-11-15 | Fujikura Ltd | 電子部品、電子部品の製造方法、基板 |
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JPH03209874A (ja) * | 1990-01-12 | 1991-09-12 | Hitachi Ltd | 半導体集積回路装置 |
JP2010177454A (ja) * | 2009-01-29 | 2010-08-12 | Sanyo Electric Co Ltd | 絶縁ゲート型半導体装置 |
JP5777319B2 (ja) * | 2010-10-27 | 2015-09-09 | 三菱電機株式会社 | 半導体装置 |
US9343381B2 (en) * | 2013-05-22 | 2016-05-17 | Infineon Technologies Ag | Semiconductor component with integrated crack sensor and method for detecting a crack in a semiconductor component |
JP6046262B2 (ja) * | 2013-09-19 | 2016-12-14 | 三菱電機株式会社 | 半導体装置 |
JP6769165B2 (ja) * | 2016-08-10 | 2020-10-14 | 富士電機株式会社 | 半導体装置 |
JP6702911B2 (ja) * | 2017-04-21 | 2020-06-03 | 三菱電機株式会社 | 半導体装置およびその製造方法 |
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JP2000114516A (ja) | 1998-10-02 | 2000-04-21 | Toshiba Corp | 半導体装置およびその製造方法 |
JP2005277338A (ja) | 2004-03-26 | 2005-10-06 | Nec Electronics Corp | 半導体装置及びその検査方法 |
JP2010092924A (ja) | 2008-10-03 | 2010-04-22 | Sharp Corp | 半導体装置及び半導体装置検査方法 |
JP2012227210A (ja) | 2011-04-15 | 2012-11-15 | Fujikura Ltd | 電子部品、電子部品の製造方法、基板 |
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