JP3854957B2 - 半導体装置の製造方法および半導体装置 - Google Patents
半導体装置の製造方法および半導体装置 Download PDFInfo
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- 238000009413 insulation Methods 0.000 description 4
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- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
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- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 229910017083 AlN Inorganic materials 0.000 description 1
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- 229910000679 solder Inorganic materials 0.000 description 1
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Description
図1は、全体が100で表される、本実施の形態にかかる半導体装置の斜視図である。また、図2は、図1の半導体装置100の、I−I方向に見た断面図である。
ここでは、ICチップ7とパワーチップ5とは、フレーム1を介して接続したが、直接接続しても良い。更に、ボンディングワイヤ6、8に代えて金属板を用いて接続しても良い。
続いて、裏面に金属箔4を取り付けた絶縁性の樹脂シート3を準備し、樹脂封止用金型20の内部の所定の位置に配置する。この場合、樹脂シート3に含まれる金属箔4の裏面が下部金型22の内部底面に接するように、樹脂シート3が配置される。
なお、ここでは、下部金型22上にまず樹脂シート3を配置し、続いて樹脂シート3上にパワーチップ5等を実装したフレーム1を配置する場合について説明したが、予め、樹脂シート3の上にパワーチップ5等を実装したフレーム1を仮固着し、その後、樹脂シート3を下部金型22上に配置しても構わない。
更に、押さえピン23でダイパッド1aを押さえた状態で、加圧状態の封止用樹脂12が樹脂封止用金型20内に注入され、保持される。この間に、ダイパッド1aと樹脂シート3が固着される。
なお、ピン押さえ部1cは、樹脂封止工程でダイパッド1aを固定する以外に、パワーチップ搭載工程やワイヤボンディング工程でフレーム1を固定するために用いることもできる。
このように押さえピン23を配置することにより、半導体装置100を大きくすることなく、直径の大きい、即ち強度が強く寿命の長い押さえピン23を用いることができる。
図7は、全体が200で表される、本実施の形態にかかる半導体装置の断面図であり、図1のI−I方向と同じ方向に見た図である。図7中、図1、2と同一符号は、同一又は相当箇所を示す。
図8は、全体が300で表される、本実施の形態にかかる半導体装置の断面図であり、半導体装置300を、図1のI−I方向と同じ方向に見た図である。図8中、図1、2と同一符号は、同一又は相当箇所を示す。
図9は、全体が400で表される、本実施の形態にかかる半導体装置の断面図であり、半導体装置400を、図1のI−I方向と同じ方向に見た図である。図9中、図1、2と同一符号は、同一又は相当箇所を示す。
図10は、図5と同様に、樹脂封止用金型20中に配置したフレーム1の概略図である。図10では、各ダイパッド1aの両側にピン押さえ部1cが設けられている。また、押さえピン23の断面形状は、楕円形状となっている。
Claims (13)
- チップを樹脂モールドした半導体装置の製造方法であって、
表面と裏面を備え、ダイパッドを有するフレームを準備する工程と、
第1面と第2面を有する絶縁性の樹脂シートを準備する工程と、
押さえピンを備えた樹脂封止用金型を準備する工程と、
該樹脂封止用金型の内部底面に該樹脂シートの第2面が接するように、該樹脂封止用金型内に該樹脂シートを載置する工程と、
該ダイパッドの該表面上にパワーチップを載置する工程と、
該ダイパッドの該裏面が該樹脂シートの該第1面に接するように、該樹脂シートの該第1面上に該フレームを配置する工程と、
該押さえピンで該ダイパッドを該樹脂シートに向って押さえ、該ダイパッドを固定する固定工程と、
該樹脂封止用金型内に封止用樹脂を充填して硬化させる硬化工程と、
該樹脂封止用金型から、該パワーチップが該封止用樹脂でモールドされた半導体装置を取り出す工程とを含むことを特徴とする製造方法。 - チップを樹脂モールドした半導体装置の製造方法であって、
表面と裏面を備え、ダイパッドを有するフレームを準備する工程と、
第1面と第2面を有する絶縁性の樹脂シートを準備する工程と、
押さえピンを備えた樹脂封止用金型を準備する工程と、
該ダイパッドの該表面上にパワーチップを載置する工程と、
該ダイパッドの該裏面が該樹脂シートの該第1面に接するように、該樹脂シートの該第1面上に該フレームを搭載する工程と、
該樹脂封止用金型の内部底面に該樹脂シートの第2面が接するように、該樹脂封止用金型内に、該ダイパッドを搭載した該樹脂シートを載置する工程と、
該押さえピンで該ダイパッドを該樹脂シートに向って押さえ、該ダイパッドを固定する固定工程と、
該樹脂封止用金型内に封止用樹脂を充填して硬化させる硬化工程と、
該樹脂封止用金型から、該パワーチップが該封止用樹脂でモールドされた半導体装置を取り出す工程とを含むことを特徴とする製造方法。 - 上記固定工程が、一つの上記ダイパッドを、複数の上記押さえピンで押さえる工程であることを特徴とする請求項1又は2に記載の製造方法。
- 上記固定工程が、隣接する上記ダイパッドの間に設けられた上記押さえピンで、上記ダイパッドを固定する工程であることを特徴とする請求項1又は2に記載の製造方法。
- 上記固定工程が、隣接して設けられた2つの上記ダイパッドに対して、該ダイパッドの間に設けられた少なくとも2つの上記押さえピンで、該ダイパッドをそれぞれ押さえる工程であることを特徴とする請求項1又は2に記載の製造方法。
- 上記固定工程が、隣接して設けられた2つの上記ダイパッドから、互いに重ならないように張出したピン押さえ部を、上記押さえピンで押さえる工程であることを特徴とする請求項1又は2に記載の製造方法。
- 上記固定工程が、上記押さえピンの一部で上記ダイパッドを押さえる工程であることを特徴とする請求項1又は2に記載の製造方法。
- 上記固定工程が、隣接して設けられた2つの上記ダイパッドの間隔より直径の小さな上記押さえピンを用いて該ダイパッドを押さえる工程であることを特徴とする請求項1又は2に記載の製造方法。
- 上記固定工程が、隣接して設けられた2つの上記ダイパッドの間に、該ダイパッドに沿う配置方向に設けられた複数の上記押さえピンで該ダイパッドを押さえる工程であり、
上記硬化工程が、上記封止用樹脂を該配置方向に向けて充填する工程であることを特徴とする請求項1又は2に記載の製造方法。 - チップが樹脂モールドされた半導体装置であって、
表面と裏面を備え、ダイパッドを含むフレームと、
該ダイパッドの該表面に載置されたパワーチップと、
対向する第1面と第2面とを備え、該ダイパッドの該裏面がその第1面と接するように配置された絶縁性の樹脂シートと、
該樹脂シートの該第1面上に、該パワーチップを封止するように設けられたモールド樹脂とを含み、
該樹脂シートが露出した該モールド樹脂の裏面と対向する、該モールド樹脂の表面の、押さえピンを引き抜いた位置に、凹部を有することを特徴とする半導体装置。 - 上記凹部に、樹脂が充填されてなることを特徴とする請求項10に記載の半導体装置。
- チップが樹脂モールドされた半導体装置であって、
表面と裏面を備え、ダイパッドを含むフレームと、
該ダイパッドの該表面に載置されたパワーチップと、
対向する第1面と第2面とを備え、該ダイパッドの該裏面がその第1面と接するように配置された絶縁性の樹脂シートと、
該樹脂シートの該第1面上に、該パワーチップを封止するように設けられたモールド樹脂とを含み、
該樹脂シートが露出した該モールド樹脂の裏面と対向する、該モールド樹脂の表面の、押さえピンを引き抜いた位置に、突起部を有することを特徴とする半導体装置。 - チップが樹脂モールドされた半導体装置であって、
表面と裏面を備え、ダイパッドを含むフレームと、
該ダイパッドの該表面に載置されたパワーチップと、
対向する第1面と第2面とを備え、該ダイパッドの該裏面がその第1面と接するように配置された絶縁性の樹脂シートと、
該樹脂シートの該第1面上に、該パワーチップを封止するように設けられたモールド樹脂とを含み、
該ダイパッドが、該ダイパッドから張出したピン押さえ部を含むことを特徴とする半導体装置。
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