JP5079646B2 - 半導体パッケージ及びその製造方法と半導体装置 - Google Patents
半導体パッケージ及びその製造方法と半導体装置 Download PDFInfo
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- JP5079646B2 JP5079646B2 JP2008242066A JP2008242066A JP5079646B2 JP 5079646 B2 JP5079646 B2 JP 5079646B2 JP 2008242066 A JP2008242066 A JP 2008242066A JP 2008242066 A JP2008242066 A JP 2008242066A JP 5079646 B2 JP5079646 B2 JP 5079646B2
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Description
図2〜図6は本発明の第1実施形態の半導体パッケージの製造方法を示す断面図である。
図12〜図15は本発明の第2実施形態の半導体パッケージの製造方法を示す断面図である。前述した第1実施形態では、補強樹脂層70をエポキシ樹脂などの単層の樹脂フィルム70xから形成している。半導体パッケージではリードピン側の面に難燃性をもたせる場合があるが、エポキシ樹脂単体では難燃性を得ることは困難である。
図19及び図20は本発明の第3実施形態の半導体パッケージのリードピンの周りを示す部分断面図である。第3実施形態と第2実施形態との違いは、リードピンの周りの補強樹脂層の形状にあり、その他の要素は第2実施形態の図15と同一である。このため、リードピンの周りの部分断面図を参照して説明する。
図21及び図22は本発明の第4実施形態の半導体パッケージのリードピンの周りを示す部分断面図である。第4実施形態と第2実施形態との違いは、難燃性フィルム74xと補強樹脂層70との間に他の層をさらに形成することにある。その他の要素は第2実施形態の図15と同一であるので、リードピンの周りの部分断面図を参照して説明する。
Claims (8)
- 配線基板と、
前記配線基板の一方の面側の接続パッドにはんだによって固着されたリードピンと、
前記配線基板の前記リードピンが設けられた面の全面に形成され、前記リードピンの周りで局所的に突出して前記リードピンの基部側の側面を被覆する突起状樹脂部を備えた補強樹脂層と、
前記補強樹脂層の外面側に形成されて、前記リードピンの径より大きな径の開口部を備え、前記開口部に前記リードピンが挿通した状態で配置された絶縁フィルムと、
前記補強樹脂層と前記絶縁フィルムとの間に形成され、前記リードピンの径より大きな径の開口部を備え、前記開口部に前記リードピンが挿通した状態で配置された中間樹脂層とを有し、
前記突起状樹脂部は、前記リードピンと前記絶縁フィルム及び前記中間樹脂層の開口部の側面との隙間に充填されて前記リードピンの先端側に突出しており、かつ、
前記補強樹脂層、前記中間樹脂層、及び前記絶縁フィルムの順にそれらの弾性率が高くなるように設定されていることを特徴とする半導体パッケージ。 - 前記突起状樹脂部は、前記リードピンの外周部から外側に延在する頂上面と、前記頂上面と非同一面となる側面とを備えていることを特徴とする請求項1に記載の半導体パッケージ。
- 前記突起状樹脂部を備えた補強樹脂層は、エポキシ樹脂、ポリイミド樹脂、アクリル樹脂、エポキシ樹脂とアクリル樹脂との混合樹脂、又は、下から順に、エポキシ樹脂/ポリイミド樹脂の2層構造からなることを特徴とする請求項1又は2に記載の半導体パッケージ。
- 前記はんだは鉛フリーはんだであることを特徴とする請求項1乃至3のいずれか一項に記載の半導体パッケージ。
- 前記絶縁フィルムは、ポリイミド、エンジニアリングプラスチック、ポリフェニレンサルファイド、及びテフロン(登録商標)のいずれかからなることを特徴とする1乃至3のいずれか一項に記載の半導体パッケージ。
- 請求項1乃至5のいずれかの半導体パッケージと、
前記配線基板の他方の面側の接続パッドにはんだによって実装された半導体チップとを有することを特徴とする半導体装置。 - 前記リードピンを固着するはんだと前記半導体チップを実装するはんだは共に鉛フリーはんだであり、
前記半導体チップは前記はんだをリフロー加熱することによって実装され、
前記リードピンを固着するはんだの融点は、前記半導体チップを実装する際の前記リフロー加熱の温度と同等又はそれより低いことを特徴とする請求項6に記載の半導体装置。 - 配線基板の一方の面側の接続パッドにはんだによってリードピンを固着する工程と、
下から順に、未硬化の補強樹脂層、未硬化の中間樹脂層、及び絶縁フィルムが積層されて、前記リードピンの径より大きな径の開口部を備えた樹脂付きフィルムの前記開口部に前記リードピンを挿通させ、押圧治具で前記樹脂付きフィルムを押圧しながら熱処理して硬化させることにより、前記補強樹脂層、前記中間樹脂層及び前記絶縁フィルムを得ると共に、リードピンと前記絶縁フィルム及び前記中間樹脂層の開口部の側面との隙間に、前記補強樹脂層に繋がって充填された突起状樹脂部を前記リードピンの先端側に突出させて形成する工程とを有し、
前記補強樹脂層、前記中間樹脂層、及び前記絶縁フィルムの順にそれらの弾性率が高くなるように設定されていることを特徴とする半導体パッケージの製造方法。
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