JP5036397B2 - 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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- JP5036397B2 JP5036397B2 JP2007133948A JP2007133948A JP5036397B2 JP 5036397 B2 JP5036397 B2 JP 5036397B2 JP 2007133948 A JP2007133948 A JP 2007133948A JP 2007133948 A JP2007133948 A JP 2007133948A JP 5036397 B2 JP5036397 B2 JP 5036397B2
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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の基板の電極接続用パッドに、金属コアにはんだ膜が被膜された電極をはんだ付けする工程と、
前記電極の前記第1の基板に形成された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、前記金属コアが露出した平坦な露出面を形成する工程と、
前記第1の基板に形成された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して前記チップ部品および前記電極を封止する工程と
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の基板に設けられた電極接続用パッドに、金属ボールからなり基板面から突出する電極をフラックス不含有導電性ペーストにより接合する工程と、
前記電極の前記第1の基板に形成された前記接続用パッドと接合される部位を研磨処理して平坦化する工程と、
前記第1の基板に形成された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し、前記チップ部品及び前記電極を封止する工程と
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の基板の電極接続用パッドに、金属コアにはんだ膜が被膜された電極をはんだ付けする工程と、
前記電極の前記第1の基板に形成された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、前記金属コアが露出した平坦な露出面を形成する工程と、
前記第1の基板に形成された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して前記チップ部品および前記電極を封止する工程と
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2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の基板に設けられた電極接続用パッドに、金属ボールからなり基板面から突出する電極をフラックス不含有導電性ペーストにより接合する工程と、
前記電極の前記第1の基板に形成された前記接続用パッドと接合される部位を研磨処理して平坦化する工程と、
前記第1の基板に形成された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し、前記チップ部品及び前記電極を封止する工程と
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。
- 前記金属ボールが銅ボール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6記載のチップ内蔵基板の製造方法。
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