JP4800606B2 - 素子内蔵基板の製造方法 - Google Patents
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- Manufacturing & Machinery (AREA)
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Description
101、306・・・WCSPタイプの半導体装置
110、111・・・半導体装置
112、321・・・チップ部品
113・・・基体
114・・・ダイスボンド材
115、116・・・絶縁層
117、119、123、302、303、317、319・・・配線層
118、120、305、316・・・導電体
124,125、307、322・・・電極パッド
308、318・・・外部端子
310・・・フィラー入りエポキシ樹脂
312、313、314、402、403、405・・・プリプラグ
Claims (8)
- 第1の配線層および複数の第1の導電体が形成された第1の表面と前記第1の表面に対向すると共に第2の配線層が形成された第2の表面とを備え、前記第1の表面から前記第2の表面へ貫通する第1のコンタクトホール内に配置形成された第2の導電体を有する基板を準備し、
複数の第3の導電体が形成された第3の表面と前記第3の表面に対向する第4の表面とを備え、前記第3の表面から前記第4の表面へ貫通する第2のコンタクトホール内に配置形成された第4の導電体を有する第1の電子部品を準備し、
前記複数の第1の導電体と前記複数の第3の導電体とがそれぞれ電気的に接続されるように、前記第1の電子部品を前記基板の第1の表面上に搭載し、
前記基板の第1の表面上に、前記第1の電子部品が収納可能な開口部を備えた第1のプリプレグを積層し、
前記基板の前記第2の表面上に、第5の導電体が形成された表面と前記基板の前記第2の表面と向かい合う裏面とを備える第2のプリプレグを積層し、
前記第1のプリプレグ上に、第6の導電体が形成された表面と前記第1のプリプレグと向かい合う裏面とを備える第3のプリプレグを積層し、
前記第3のプリプレグの表面から裏面へ貫通する第3のコンタクトホールおよび前記第3のコンタクトホール内に前記第4の導電体と電気的に接続される第7の導電体を形成し、
前記第6の導電体をパターニングすることを特徴とする素子内蔵基板の製造方法。 - 前記第1の電子部品と前記基板との間は、樹脂により封止することを特徴とする請求項1記載の素子内蔵基板の製造方法。
- 前記第3のプリプレグの表面から裏面へ貫通する前記第3のコンタクトホールは、レーザーによって形成されることを特徴とする請求項1記載の素子内蔵基板の製造方法。
- 前記複数の第1の導電体表面上にフラックスとはんだペーストを供給した後、前記複数の第1の導電体と前記複数の第3の導電体とをそれぞれリフローにより接合することを特徴とする請求項1記載の素子内蔵基板の製造方法。
- 前記フラックスとはんだペーストは、スクリーン印刷方式によって供給されることを特徴とする請求項4記載の素子内蔵基板の製造方法。
- 前記接合後、フラックスを除去することを特徴とする請求項4記載の素子内蔵基板の製造方法。
- 第1の導電体が形成された第1の表面と前記第1の表面に対向する第2の表面とを備え、前記第1の表面から前記第2の表面へ貫通する第1のコンタクトホールおよび前記第1のコンタクトホール内に配置形成された第2の導電体を有する第1の電子部品を準備し、
第3の導電体が形成された表面を備える第1のプリプレグの裏面上に前記第1の電子部品を搭載し、
開口部を有する第2のプリプレグの前記開口部内に前記第1の電子部品が収納されるように、前記第1のプリプレグの裏面上に前記第2のプリプレグを積層し、
前記第2のプリプレグ上に、第4の導電体が形成された表面と前記第2のプリプレグと向かい合う裏面とを備える第3のプリプレグを積層し、
前記第1のプリプレグの表面から裏面へ貫通する第2のコンタクトホールおよび前記第2のコンタクトホール内に前記第3の導電体と電気的に接続される第5の導電体を形成し、
前記第3、4の導電体をパターニングすることを特徴とする素子内蔵基板の製造方法。 - 前記第1のプリプレグの表面から裏面へ貫通する前記第2のコンタクトホールは、レーザーによって形成されることを特徴とする請求項7記載の素子内蔵基板の製造方法。
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