JP2008288490A - チップ内蔵基板の製造方法 - Google Patents
チップ内蔵基板の製造方法 Download PDFInfo
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Abstract
【解決手段】第1の基板10にチップ部品13をワイヤボンディング接続する工程と、第2の基板20に銅コア22にはんだ被膜23を被覆した電極21を設ける工程と、電極21のバンプ接続用パッド12と接合される部位を研磨しはんだ被膜23から銅コア22を露出させる工程と、銅コア22の露出した部分とバンプ接続用パッド12をフラックス不含有導電性ペースト30を用いて接合することにより各基板10,20を接合する工程と、各基板10,20の離間部分に封止樹脂40を充填する工程とを有する。
【選択図】図1
Description
接続用パッドが形成された第1の基板に、チップ部品をワイヤボンディング接続する工程と、
第2の基板に金属コアにはんだ膜が被膜された電極を設ける工程と、
前記電極の前記接続用パッドと接合される部位を研磨することにより前記はんだ膜を除去し、前記金属コアを露出させる工程と、
前記接続用パッドと前記電極の前記金属コアが露出した部位を、フラックス不含有の導電性接合部材を用いて接合し、前記チップ部品が内蔵されるよう前記第1の基板と前記第2の基板を接合する工程と、
前記第1の基板と前記第2の基板との離間部分に樹脂を充填する工程と
を有することを特徴とするチップ内蔵基板の製造方法により解決することができる。
接続用パッドが形成された第1の基板に、チップ部品をワイヤボンディング接続する工程と、
第2の基板に、金属材よりなり基板面から突出する電極を設ける工程と、
前記接続用パッドと前記電極をフラックス不含有の導電性接合部材を用いて接合し、前記チップ部品が内蔵されるよう前記第1の基板と前記第2の基板とを接合する工程と、
前記第1の基板と前記第2の基板との離間部分に樹脂を充填する工程と
を有することを特徴とするチップ内蔵基板の製造方法により解決することができる。
10 第1の基板
11,12 ワイヤ接続用パッド
13 チップ部品
14 ワイヤ
20 第2の基板
21 電極
22 銅コア
23 はんだ被膜
24 露出面
25 空間部
26 銅ボール
30 フラックス不含有導電性ペースト
40 封止樹脂
50A,50B,50C,50D 電子装置
51 はんだボール
62 電子部品
Claims (8)
- 接続用パッドが形成された第1の基板に、チップ部品をワイヤボンディング接続する工程と、
第2の基板に金属コアにはんだ膜が被膜された電極を設ける工程と、
前記電極の前記接続用パッドと接合される部位を研磨することにより前記はんだ膜を除去し、前記金属コアを露出させる工程と、
前記接続用パッドと前記電極の前記金属コアが露出した部位を、フラックス不含有の導電性接合部材を用いて接合し、前記チップ部品が内蔵されるよう前記第1の基板と前記第2の基板を接合する工程と、
前記第1の基板と前記第2の基板との離間部分に樹脂を充填する工程と
を有することを特徴とするチップ内蔵基板の製造方法。 - 前記導電性接合部材は、フラックス不含有の導電性ペーストであることを特徴とする請求項1記載のチップ内蔵基板の製造方法。
- 前記金属コアの材質が銅であることを特徴とする請求項1又は2記載のチップ内蔵基板の製造方法。
- 前記導電性ペーストは、フィラーとして銅又は銀を用いていることを特徴とする請求項3記載のチップ内蔵基板の製造方法。
- 接続用パッドが形成された第1の基板に、チップ部品をワイヤボンディング接続する工程と、
第2の基板に、金属材よりなり基板面から突出する電極を設ける工程と、
前記接続用パッドと前記電極をフラックス不含有の導電性接合部材を用いて接合し、前記チップ部品が内蔵されるよう前記第1の基板と前記第2の基板とを接合する工程と、
前記第1の基板と前記第2の基板との離間部分に樹脂を充填する工程と
を有することを特徴とするチップ内蔵基板の製造方法。 - 前記導電性接合部材は、フラックス不含有の導電性ペーストであることを特徴とする請求項5記載のチップ内蔵基板の製造方法。
- 前記金属材が銅であることを特徴とする請求項5又は6記載のチップ内蔵基板の製造方法。
- 前記導電性ペーストは、フィラーとして銅又は銀を用いていることを特徴とする請求項7記載のチップ内蔵基板の製造方法。
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US8138022B2 (en) | 2009-06-26 | 2012-03-20 | Renesas Electronics Corporation | Method of manufacturing semiconductor device |
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