JP6455091B2 - 電子装置及び電子装置の製造方法 - Google Patents
電子装置及び電子装置の製造方法 Download PDFInfo
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- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
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Description
(1)In−48Sn共晶はんだ
(2)In−48Sn共晶はんだにAgを1wt%添加したIn−Sn−1Ag合金
(3)In−48Sn共晶はんだにAgを5wt%添加したIn−Sn−5Ag合金
(4)In−48Sn共晶はんだにAgを10wt%添加したIn−Sn−10Ag合金
(5)In−48Sn共晶はんだ
(6)In−48Sn共晶はんだにAgを1wt%添加したIn−Sn−1Ag合金
(7)In−48Sn共晶はんだにAgを3wt%添加したIn−Sn−3Ag合金
(8)In−48Sn共晶はんだにAgを5wt%添加したIn−Sn−5Ag合金
次に、第1の実施形態に係る電子装置の製造方法について図5〜図10を用いて説明する。図5〜図10は、第1の実施形態に係る電子装置の製造工程を例示する図である。
本実施形態は、多段階に実装された電子装置についてである。
次に、第2の実施形態に係る電子装置の製造方法について図13〜図21を用いて説明する。図13〜図21は、第2の実施形態に係る電子装置の製造工程を例示する図である。
以上の第1、第2の実施形態を含む実施形態に関し、更に以下の付記を開示する。
(付記1)
第一の電子部品と、
第二の電子部品と、
前記第一の電子部品と前記第二の電子部品とを接続し、AgIn2と、前記AgIn2よりも少ない含有量のAg2Inとを含むIn−Sn−Ag合金からなる第一の接合部と
を含む電子装置。
(付記2)
前記第一の接合部は、Inを43wt%〜60wt%含有することを特徴とする、付記1に記載の電子装置。
(付記3)
前記第一の接合部は、Agを3wt%以下含有することを特徴とする、付記1又は付記2の何れかに記載の電子装置。
(付記4)
更に第三の電子部品と、
前記第二の電子部品と前記第三の電子部品とを接続する第二の接合部と
を含み、
前記第二の接合部は、前記第一の接合部と異なる接合材料からなることを特徴とする、付記1乃至付記3の何れかに記載の電子装置。
(付記5)
Inを43wt%〜60wt%、Agを3wt%以下含有したIn−Sn−Ag合金からなる接合材料を介して、第一の電子部品と第二の電子部品とを接続し、
前記第一の電子部品と前記第二の電子部品とを接続する前記接合材料を、前記In−Sn−Ag合金の固相線温度以上の温度において、第一の冷却速度で冷却し、
前記第一の電子部品と前記第二の電子部品とを接続する前記接合材料を、前記In−Sn−Ag合金の固相線温度以下の温度において、前記第一の冷却速度よりも小さい第二の冷却速度で冷却することを特徴とする電子装置の製造方法。
(付記6)
前記第一の冷却速度は1℃/秒以上の冷却速度であることを特徴とする、付記5に記載の電子装置の製造方法。
(付記7)
前記第二の冷却速度は1℃/秒未満の冷却速度であることを特徴とする、付記5に記載の電子装置の製造方法。
Claims (5)
- 第一の電子部品と、
第二の電子部品と、
前記第一の電子部品と前記第二の電子部品とを接続する第一の接合部と、を含み、
前記第一の接合部は、Inを43wt%〜60wt%含有し、Agを3wt%以下含有するIn−Sn−Ag合金からなり、AgIn 2 と、前記AgIn 2 よりも少ない含有量のAg 2 Inとを含むことを特徴とする電子装置。 - 更に第三の電子部品と、
前記第二の電子部品と前記第三の電子部品とを接続する第二の接合部と
を含み、
前記第二の接合部は、前記第一の接合部と異なる接合材料からなることを特徴とする、請求項1に記載の電子装置。 - Inを43wt%〜60wt%、Agを3wt%以下含有したIn−Sn−Ag合金からなる接合材料を介して、第一の電子部品と第二の電子部品とを接続し、
前記第一の電子部品と前記第二の電子部品とを接続する前記接合材料を、前記In−Sn−Ag合金の固相線温度以上の温度において、第一の冷却速度で冷却し、
前記第一の電子部品と前記第二の電子部品とを接続する前記接合材料を、前記In−Sn−Ag合金の固相線温度以下の温度において、前記第一の冷却速度よりも小さい第二の冷却速度で冷却して、前記接合材料にAgIn 2 と、前記AgIn 2 よりも少ない含有量のAg 2 Inとを含むようにすることを特徴とする電子装置の製造方法。 - 前記第一の冷却速度は1℃/秒以上の冷却速度であることを特徴とする、請求項3に記載の電子装置の製造方法。
- 前記第二の冷却速度は1℃/秒未満の冷却速度であることを特徴とする、請求項3に記載の電子装置の製造方法。
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| US14/885,356 US9640508B2 (en) | 2014-11-12 | 2015-10-16 | Electrical apparatus |
| TW104134841A TWI561330B (en) | 2014-11-12 | 2015-10-23 | Electrical apparatus and method for manufacturing the same |
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| JPH067607A (ja) * | 1992-04-28 | 1994-01-18 | Asahi Glass Co Ltd | 水切り用の溶剤組成物 |
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| JP3866503B2 (ja) | 2000-10-18 | 2007-01-10 | 株式会社東芝 | 半導体装置 |
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| US8888932B2 (en) | 2007-07-18 | 2014-11-18 | Senju Metal Industry Co., Ltd. | Indium-containing lead-free solder for vehicle-mounted electronic circuits |
| US8138610B2 (en) * | 2008-02-08 | 2012-03-20 | Qimonda Ag | Multi-chip package with interconnected stacked chips |
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