JP6124164B2 - 低コストなパッケージの反りの解決法 - Google Patents
低コストなパッケージの反りの解決法 Download PDFInfo
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- JP6124164B2 JP6124164B2 JP2015219436A JP2015219436A JP6124164B2 JP 6124164 B2 JP6124164 B2 JP 6124164B2 JP 2015219436 A JP2015219436 A JP 2015219436A JP 2015219436 A JP2015219436 A JP 2015219436A JP 6124164 B2 JP6124164 B2 JP 6124164B2
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Description
Claims (23)
- デバイスパッケージの製造方法であって、
基材の上部に補強層を形成する段階であって1または複数の開口が前記補強層を通って形成される段階と、
前記複数の開口のうちの1つの開口にデバイスダイを配置する段階と、
前記デバイスダイと前記基材との間に位置する1または複数の半田バンプをリフローすることで前記デバイスダイを前記基材に接合する段階と、
を備え、
電気的かつ機械的に第2のダイを前記デバイスダイの上面に結合する段階をさらに備え、
前記第2のダイの幅は前記開口の幅よりも大きく、
前記第2のダイの一部は前記補強層により支持される、デバイスパッケージの製造方法。 - 前記補強層を形成する段階は、
前記基材の表面の上部にモールドを配置する段階と、
前記モールド内にモールド材料を注入する段階と、
前記モールドを前記基材から除去する段階と
を有する、請求項1に記載のデバイスパッケージの製造方法。 - 前記モールドは、1または複数の凹部と、コンプライアントライナーとを有する、請求項2に記載のデバイスパッケージの製造方法。
- 前記モールド材料は、射出成型プロセスを用いて前記モールドに注入される、請求項2または3に記載のデバイスパッケージの製造方法。
- 前記射出成型プロセスは、真空補助射出成型プロセスである、請求項4に記載のデバイスパッケージの製造方法。
- 前記モールド材料はエポキシである、請求項2から5の何れか1項に記載のデバイスパッケージの製造方法。
- 前記エポキシは複数の強化粒子を有する、請求項6に記載のデバイスパッケージの製造方法。
- 前記補強層を形成する段階は、
前記補強層の表面に接着層を加える段階と、
前記基材の上部に前記補強層を配置する段階と
を有し、
前記接着層は機械的に前記補強層を前記基材に結合する、請求項1に記載のデバイスパッケージの製造方法。 - 前記補強層は、鋼、ステンレス鋼またはアルミニウムである、請求項8に記載のデバイスパッケージの製造方法。
- 前記1または複数の半田バンプは、
前記デバイスダイが前記開口に配置されるのに先立って、前記デバイスダイに形成される、請求項1から9の何れか1項に記載のデバイスパッケージの製造方法。 - 前記1または複数の半田バンプのそれぞれは、
前記デバイスダイの集積回路に電気的に結合された別個の複数の金属ピラーに形成される、請求項1から10の何れか1項に記載のデバイスパッケージの製造方法。 - 前記デバイスダイの第1縁部と、前記開口の第1側壁との間の第1間隙は、
前記第1縁部と対向する側に設けられる前記デバイスダイの第2縁部と、前記複数の開口のうちの前記1つの開口の第2側壁との間の第2間隙よりも大きい、請求項1から11の何れか1項に記載のデバイスパッケージの製造方法。 - 前記第2のダイは、
前記デバイスダイに形成された1または複数の半田バンプと、前記デバイスダイの表面の上部に形成された1または複数の導電配線と、前記デバイスダイの表面の上部に形成された1または複数のローカルメモリインターコネクトとにより前記デバイスダイの集積回路に電気的に結合されたメモリダイである、請求項12に記載のデバイスパッケージの製造方法。 - 前記基材の厚さは、100μmより小さい、請求項1から13の何れか1項に記載のデバイスパッケージの製造方法。
- デバイスパッケージであって、
自身の第1の面の上部に形成された1または複数の導電配線を有する基材と、
前記基材の前記第1の面から、前記基材の前記第1の面とは反対の前記基材の第2の面まで形成された1または複数の導電性スルービアと、
前記複数の導電配線の複数の部分を露出させる1または複数の開口を有する、前記基材の上部に形成された補強層と、
1または複数の半田バンプにより前記1または複数の導電配線に電気的に結合されたデバイスダイと
を備え、
導電性ビアの1または複数は導電配線に電気的に結合され、
前記デバイスダイの上面に機械的かつ電気的に結合された第2のダイをさらに備え、
前記第2のダイの幅は、前記開口の幅よりも大きく、
前記第2のダイの一部は、前記補強層により支持される、デバイスパッケージ。 - 前記補強層はエポキシ材料である、請求項15に記載のデバイスパッケージ。
- 前記補強層は接着層により前記基材に結合される、請求項15または16に記載のデバイスパッケージ。
- 前記補強層は鋼、ステンレス鋼、またはアルミニウムである、請求項15から17の何れか1項に記載のデバイスパッケージ。
- 前記基材の複数の部分の上部と、前記複数の導電配線の複数の部分の上部とに形成された半田レジスト層と、
前記補強層内の前記開口により露出された前記半田レジスト層の複数の部分を通って形成された1または複数の半田レジスト開口と
をさらに備える、請求項15から18の何れか1項に記載のデバイスパッケージ。 - 前記デバイスダイの第1縁部と、前記開口の第1側壁との間の第1間隙は、
前記第1縁部と対向する側に設けられる前記デバイスダイの第2縁部と、前記開口の第2側壁との間の第2間隙よりも大きい、請求項15から19の何れか1項に記載のデバイスパッケージ。 - デバイスパッケージであって、
自身の第1の面の上部に形成された1または複数の導電配線を有し、厚さが100μmより小さい基材と、
前記基材の前記第1の面から、前記基材の前記第1の面とは反対の前記基材の第2の面まで形成された1または複数の導電性スルービアであって、当該1または複数の導電性ビアのそれぞれが導電配線に電気的に結合された1または複数の導電性スルービアと、
前記基材の上部に形成され、前記複数の導電配線の複数の部分を露出する1または複数の開口を有する補強層と、
1または複数の半田バンプにより前記1または複数の導電配線に電気的に結合されたデバイスダイと、
前記デバイスダイと前記基材との間で、かつ前記1または複数の半田バンプの周りに配置されたアンダーフィル材料と、
前記デバイスダイの上面に機械的かつ電気的に結合された第2のダイと、
前記基材の前記第2の面に形成された1または複数のセカンドレベルインターコネクトと
を備え、
前記第2のダイの幅は前記開口の幅よりも大きく、
前記第2のダイの一部は前記補強層により支持されるデバイスパッケージ。 - 前記補強層と前記基材との間に形成された接着層をさらに備え、
前記補強層は、鋼、ステンレス鋼またはアルミニウムである、請求項21に記載のデバイスパッケージ。 - 前記デバイスダイの第1縁部と、前記開口の第1側壁との間の第1間隙は、
前記デバイスダイの第2縁部と、前記開口の第2側壁との間の第2間隙よりも大きい、請求項21または22に記載のデバイスパッケージ。
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