JP7586972B2 - 電気めっきされたダイ取り付けを備える半導体デバイス - Google Patents
電気めっきされたダイ取り付けを備える半導体デバイス Download PDFInfo
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Description
Claims (21)
- パッケージ化半導体装置をつくる方法であって、
中央開口部と前記中央開口部の周りの複数の隆起トレースとを有する金属基板を提供することであって、前記隆起トレースが誘電体ベース層と前記誘電体ベース層上の金属層とを含む、前記金属基板を提供することと、
裏側金属(BSM)層を有する半導体ダイを頂部側を上にして前記中央開口部の頂部部分上に搭載することと、
前記中央開口部の底部を充填するダイ取り付けを提供するために前記BSM層と前記中央開口部の境界を区切る前記金属基板の壁との間に直接的に単一金属層を形成することと、
前記複数の隆起トレースの金属層に接するリードを形成することであって、前記リードが少なくとも1つの屈曲部と前記金属基板を超えて延在する末端部とを含む、前記リードを形成することと、
前記複数の隆起トレースと前記半導体ダイ上のボンドパッドとの間にボンドワイヤを取り付けることと、
を含む、方法。 - 請求項1に記載の方法であって、
前記誘電体ベース層がポリイミドを含む、方法。 - 請求項1に記載の方法であって、
前記金属基板と前記単一金属層とがすべて銅を含む、方法。 - 請求項1に記載の方法であって、
前記単一金属層が20μmから100μmの厚さである、方法。 - 請求項1に記載の方法であって、
前記金属基板が0.1mmから0.3mmの厚さである、方法。 - 請求項1に記載の方法であって、
前記単一金属層が電気めっきされた金属層である、方法。 - パッケージ化半導体装置をつくる方法であって、
中央開口部と前記中央開口部の周りの複数の隆起トレースとを有する銅含有基板を提供することであって、前記隆起トレースが誘電体ベース層と前記誘電体ベース層上の金属層とを含む、前記銅含有基板を提供することと、
頂部側を上にして裏側金属(BSM)層を有する半導体ダイを前記中央開口部の頂部部分に搭載することと、
前記中央開口部の底部を充填するダイ取り付けを提供するために前記BSM層と前記中央開口部の境界を区切る前記銅含有基板の壁との間に直接的に単一銅層を形成することと、
前記複数の隆起トレースの金属層に接するリードを形成することであって、前記リードが少なくとも1つの屈曲部と前記銅含有基板を超えて延在する末端部とを含む、前記リードを形成することと、
前記複数の隆起トレースと前記半導体ダイ上のボンドパッドとの間にボンドワイヤを取り付けることと、
前記半導体ダイをモールド化合物で覆うことと、
を含む、方法。 - 請求項7に記載の方法であって、
前記単一銅層が20μmから100μmの厚さである、方法。 - 半導体ダイ取り付けの方法であって、
凹部を有する誘電体カバーと中央スルーホール開口部と前記中央スルーホール開口部の周りの複数の隆起トレースとを含む金属基板とを提供することであって、前記中央スルーホール開口部が前記誘電体カバーの凹部と調和する位置の外側リングを有し、前記隆起トレースが前記金属基板上の誘電体ベース層と前記誘電体ベース層上の金属層とを含む、前記誘電体カバーと金属基板とを提供することと、
前記外側リング上に載るように頂部側を上にして半導体ダイを前記中央スルーホール開口部に挿入することであって、前記半導体ダイが裏側金属(BSM)層を有する、前記半導体ダイを挿入することと、
スタックを形成するために前記誘電体カバーを前記半導体ダイの上に置くことと、
前記誘電体カバーと前記金属基板との間の周辺に沿って密封することと、
溶液容器内の金属電気めっき溶液に前記スタックを浸漬することであって、前記金属基板が電源の負側端子に接続され、前記金属基板から間隔を開けられた電気的導電性構造が前記電源の正側端子に接続される、前記スタックを浸漬することと、
ダイ取り付けを提供するために前記BSM層と前記中央スルーホール開口部の境界を区切る前記金属基板の壁との間の容積を充填するように電気めっきされる単一金属層を堆積するように電気めっきすることと、
を含む、方法。 - 請求項9に記載の方法であって、
前記金属電気めっき溶液が銅電気めっき溶液を含む、方法。 - 請求項9に記載の方法であって、
前記誘電体ベース層がポリイミドを含む、方法。 - 請求項9に記載の方法であって、
前記金属基板と前記単一金属層の全てが銅を含む、方法。 - 請求項9に記載の方法であって、
前記金属基板が複数の金属基板を含む基板シートの一部であり、
前記方法が、
前記複数の隆起トレースと前記半導体ダイ上のボンドパッドとの間にボンドワイヤを置くことと、
前記置くことの後に、第1のパッケージ化半導体装置前駆体を含む複数のパッケージ化半導体装置前駆体を形成するために前記基板シートを個片化することと、
前記複数の隆起トレースの金属層に接するリードを付加することであって、前記リードが少なくとも1つの屈曲部と前記金属基板を超えて延在する末端部とを含む、前記リードを付加することと、
第1のパッケージ化半導体装置を形成するために封止を付加するモールド化合物を形成するようにモールドすることと、
を更に含む、方法。 - 請求項9に記載の方法であって、
前記電気めっきされた単一金属層が20μmから100μmの厚さである、方法。 - 請求項9に記載の方法であって、
前記誘電体カバーがプラスチックを含む、方法。 - 請求項9に記載の方法であって、
前記電気めっきすることが、15℃から30℃の温度で実行される、方法。 - 請求項9に記載の方法であって、
前記密封することが、前記誘電体カバーと前記金属基板との間の周辺に沿ってテープを置くことを含む、方法。 - 請求項9に記載の方法であって、
前記電気めっきすることが直流電気めっきすることを含む、方法。 - 請求項9に記載の方法であって、
前記電気めっきすることがパルス状に電気めっきすることを含む、方法。 - 半導体ダイ取り付けの方法であって、
凹部の第1の繰り返しパターンを有する誘電体カバーと前記第1の繰り返しパターンに調和する位置を有する第2の繰り返しパターンを有する金属基板とを提供することであって、前記第2の繰り返しパターンが前記凹部に調和する位置の外側リングを有する中央スルーホール開口部と前記中央スルーホール開口部の周りの複数の隆起トレースとを含み、前記隆起トレースが前記金属基板上の誘電体ベース層と前記誘電体ベース層上の金属層とを含む、前記誘電体カバーと金属基板とを提供することと、
前記外側リング上に載るように頂部側を上にして裏側金属(BSM)層を有する半導体ダイを前記複数の中央スルーホール開口部のそれぞれの開口部に挿入することと、
複数のスタックを形成するために前記半導体ダイの上に前記誘電体カバーを置くことと、
ダイ取り付けを提供するために前記BSM層と前記中央スルーホール開口部の境界を区切る前記金属基板の壁との間の容積を充填するように電気めっきされる単一金属層を堆積するように電気めっきすることと、
を含む、方法。 - 半導体ダイ取り付けの方法であって、
外側リングを有する複数のスルーホール開口部と前記スルーホール開口部の周りの複数の隆起トレースとを有する金属基板を提供することであって、前記隆起トレースが前記金属基板上の誘電体ベース層と前記誘電体ベース層上の金属層とを含む、前記金属基板を提供することと、
前記外側リング上に載るように頂部側を上にして裏側金属(BSM)層を有する半導体ダイを前記複数のスルーホール開口部のそれぞれの開口部に挿入することと、
ダイ取り付けを提供するために前記BSM層と前記スルーホール開口部の境界を区切る前記金属基板の壁との間の容積を充填するように電気メッキされる単一金属層を堆積するように電気めっきすることと、
を含む、方法。
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| US16/026,371 US10607931B2 (en) | 2018-07-03 | 2018-07-03 | Semiconductor device with electroplated die attach |
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| JP2021500044A JP7323101B2 (ja) | 2018-07-03 | 2019-07-02 | 電気めっきされたダイ取り付けを備える半導体デバイス |
| PCT/US2019/040243 WO2020010046A1 (en) | 2018-07-03 | 2019-07-02 | Semiconductor device with electroplated die attach |
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| JP2012094643A (ja) | 2010-10-26 | 2012-05-17 | Phoeton Corp | 半導体装置及びその製造方法 |
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