JP4061506B2 - 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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- JP4061506B2 JP4061506B2 JP2005180483A JP2005180483A JP4061506B2 JP 4061506 B2 JP4061506 B2 JP 4061506B2 JP 2005180483 A JP2005180483 A JP 2005180483A JP 2005180483 A JP2005180483 A JP 2005180483A JP 4061506 B2 JP4061506 B2 JP 4061506B2
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Description
前記パッシベーション膜上に樹脂突起を形成する工程と、
前記パッシベーション膜及び前記樹脂突起上に金属層を形成する工程と、
前記酸化膜の少なくとも一部を導電体に置き換えて、前記電極パッドと前記金属層とを電気的に接続する電気的接続部を形成する工程と、
を含む。本発明によると、金属層を形成する工程の後に、金属層と電極パッドとを電気的に接続する工程を行う。これによると、信頼性の高い半導体装置を、効率よく製造することができる。
(2)この半導体装置の製造方法において、
前記電極パッドと前記金属層とを電気的に接続する工程では、置換めっき法によって前記酸化膜を前記導電体に置換して、前記電気的接続部を形成してもよい。これによると、酸化膜を除去する工程を行うことなく、電気的接続部を形成することができるため、さらに効率よく半導体装置を製造することができる。
(3)この半導体装置の製造方法において、
前記電極パッドはアルミニウムで形成されてなり、
前記電気的接続部を、ニッケルで形成してもよい。
(4)この半導体装置の製造方法において、
前記電気的接続部及び前記金属層上に、第2の金属層を形成する工程をさらに含んでもよい。これによると、さらに信頼性の高い半導体装置を製造することができる。
以下、図8〜図10を参照して、本発明を適用した実施の形態の変形例に係る半導体装置の製造方法について説明する。
Claims (5)
- 電極パッドと、前記電極パッドとオーバーラップする開口が形成されたパッシベーション膜と、前記開口とオーバーラップする位置に設けられた酸化膜とを有する半導体基板を用意する工程と、
前記パッシベーション膜上に樹脂突起を形成する工程と、
前記樹脂突起上に位置する第1の部分と、前記酸化膜上に位置する第2の部分と、前記酸化膜とオーバーラップする位置に位置する貫通穴と、を有する金属層を形成する工程と、
前記金属層を形成する工程後、前記酸化膜の少なくとも一部を導電体に置き換えて、前記電極パッドと、前記金属層の前記第2の部分の前記電極パッドと対向する面と、に接する電気的接続部を形成する工程と、
を含む半導体装置の製造方法。 - 請求項1記載の半導体装置の製造方法において、
前記電気的接続部を形成する工程では、置換めっき法によって前記酸化膜を前記導電体に置換する半導体装置の製造方法。 - 請求項1又は請求項2記載の半導体装置の製造方法において、
前記電極パッドはアルミニウムで形成されてなり、
前記電気的接続部を、ニッケルで形成する半導体装置の製造方法。 - 請求項1から請求項3のいずれかに記載の半導体装置の製造方法において、
前記金属層上に、第2の金属層を形成する工程をさらに含む半導体装置の製造方法。 - 請求項4記載の半導体装置の製造方法において、
前記第2の金属層を形成する工程は、前記電気的接続部を形成する工程と同時に行う半導体装置の製造方法。
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JP4572376B2 (ja) * | 2007-07-30 | 2010-11-04 | セイコーエプソン株式会社 | 半導体装置の製造方法および電子デバイスの製造方法 |
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JP5057113B2 (ja) * | 2009-11-17 | 2012-10-24 | セイコーエプソン株式会社 | 半導体装置および電子部品並びにそれらの製造方法 |
US10141292B2 (en) * | 2016-10-13 | 2018-11-27 | Samsung Display Co., Ltd. | Driving chip bump having irregular surface profile, display panel connected thereto and display device including the same |
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JPH02272737A (ja) | 1989-04-14 | 1990-11-07 | Citizen Watch Co Ltd | 半導体の突起電極構造及び突起電極形成方法 |
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