JP7116380B2 - チップを相互接続する構造を含む基板、電子デバイス、およびその製作する方法 - Google Patents
チップを相互接続する構造を含む基板、電子デバイス、およびその製作する方法 Download PDFInfo
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- JP7116380B2 JP7116380B2 JP2020506738A JP2020506738A JP7116380B2 JP 7116380 B2 JP7116380 B2 JP 7116380B2 JP 2020506738 A JP2020506738 A JP 2020506738A JP 2020506738 A JP2020506738 A JP 2020506738A JP 7116380 B2 JP7116380 B2 JP 7116380B2
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Description
Claims (16)
- チップを相互接続するための相互接続基板であって、
有機ベース基板と、
搭載されるべき第1のチップのための前記有機ベース基板上の電極の第1のグループと、
搭載されるべき第2のチップのための前記有機ベース基板上の電極の第2のグループと、
前記第1のチップに対応するパッドの第1のセット、前記第2のチップに対応するパッドの第2のセットであって、前記第1のセットおよび前記第2のセットの各パッドは、相互接続層の内側に配置され、片側を除くすべてが相互接続層によって囲まれ、前記有機ベース基板の反対側にある相互接続層の表面と同一平面上にある表面を有するセット、有機絶縁材料内で同一平面上にある複数のトレースのそれぞれを備えたパッドの前記第1のセットおよびパッドの前記第2のセットと一体的に形成された複数のトレースを含む相互接続層であって、前記相互接続層は、前記有機ベース基板上に配置され、電極の前記第1のグループと前記電極の前記第2のグループとの間の前記有機ベース基板上の画定された領域内に位置する、前記相互接続層と
を備える相互接続基板。 - 前記相互接続層は、前記有機ベース基板上に接合された底部接着層をさらに含む、請求項1に記載の相互接続基板。
- 前記有機絶縁材料は前記底部接着層上に配置され、前記複数のトレースは前記有機絶縁材料内に埋め込まれ、各トレースは前記第1のセット内の対応するパッドおよび前記第2のセット内の対応するパッドに電気的に接続される、請求項2に記載の相互接続基板。
- パッドの前記第1のセットおよび電極の前記第1のグループは、それぞれ周辺バンプのセットおよび前記第1のチップの他のバンプのセットを受け入れるように構成され、パッドの前記第2のセットおよび電極の前記第2のグループは、それぞれ周辺バンプのセットおよび前記第2のチップの他のバンプのセットを受け入れるように構成される、請求項1に記載の相互接続基板。
- パッドの前記第1のセットは、前記第1のチップの最も外側のバンプを受け入れるように構成されたパッドに加えて、前記第1のチップの2番目に最も外側のバンプを受け入れるように構成されたパッドを少なくとも含み、パッドの前記第2のセットは、前記第2のチップの最も外側のバンプを受け入れるように構成されたパッドに加えて、前記第2のチップの2番目に最も外側のバンプを受け入れるように構成されたパッドを少なくとも含む、請求項1に記載の相互接続基板。
- 前記有機ベース基板はそれの上面上に半田レジスト層を有し、前記第1のグループおよび前記第2のグループ内の各電極は前記半田レジスト層から露出され、前記相互接続層が配置された前記画定された領域は前記半田レジスト層によって覆われない、請求項1に記載の
相互接続基板。 - 前記第1のセット内の各パッドおよび前記第2のセット内の各パッドは、前記相互接続層の前記上面において露出され、前記半田レジスト層および前記相互接続層は、前記半田レジスト層と前記相互接続層との間の高さの差が半田相互接続を形成するときにブリッジされることができる範囲内であるようなそれぞれの高さを有する、請求項6に記載の相互接続基板。
- 前記相互接続層は、支持基板上に前記相互接続層の構造を製作し、前記支持基板がない前記構造を前記有機ベース基板上に移動させることによってもたらされる、請求項1に記載の相互接続基板。
- 前記相互接続基板は、
搭載されるべき第3のチップのための前記有機ベース基板上の電極の第3のグループと、
前記第3のチップのためのパッドの第3のセットおよび前記第1のチップのためのパッドの第4のセットを含む第2の相互接続層であって、前記第2の相互接続層は前記有機ベース基板上に配置され、電極の前記第3のグループと電極の前記第1のグループとの間の前記有機ベース基板上の第2の画定された領域内に位置し、前記第2の相互接続層は前記相互接続層の一部として、または前記相互接続層とは分離されたものとして形成される、前記第2の相互接続層と
をさらに備える請求項1に記載の相互接続基板。 - 電子デバイスであって、
請求項1に記載の前記相互接続基板と、
前記相互接続基板上に搭載された前記第1のチップであって、前記第1のチップは、電極の前記第1のグループおよび前記相互接続層のパッドの前記第1のセットに対応する位置に位置する、前記第1のチップと、
前記相互接続基板上に搭載された第2のチップであって、前記第2のチップは、電極の前記第2のグループおよび前記相互接続層のパッドの前記第2のセットに対応する位置に位置する、前記第2のチップと
を備える電子デバイス。 - 相互接続層を基板上に移動させるための相互接続層担持構造であって、
支持基板と、
前記支持基板上の剥離層と、
前記剥離層上の相互接続層とを備え、前記相互接続層は、
有機絶縁材料と、
前記支持基板に向かって面するように構成されたパッドの第1のセットと、
前記支持基板に向かって面するように構成されたパッドの第2のセットであって、前記第1のセットおよび前記第2のセットの各パッドは、前記有機絶縁材料と、前記有機絶縁材料および前記支持基板間の介在層との間の界面と同一平面上にある表面を有するセットと、
前記有機絶縁材料内で同一平面上にあり、前記有機絶縁材料内に埋め込まれた複数のトレースのそれぞれを備えたパッドの前記第1のセットおよびパッドの前記第2のセットと一体的に形成された 複数のトレースと、
前記支持基板と反対の前記有機絶縁材料の側に形成された接着層と
を備える、相互接続層担持構造。 - パッドの前記第1のセット内の各パッドは前記トレースの1つに接続し、パッドの前記第2のセット内の各パッドは前記トレースの対応する1つに接続し、パッドの前記第1のセットの前記パッドおよびパッドの前記第2のセットの前記パッドは、前記有機絶縁材料の底面において露出される、請求項11に記載の相互接続層担持構造。
- 前記相互接続層担持構造は、
前記剥離層上の金属層をさらに備え、前記有機絶縁材料は前記金属層上に配置され、パッドの前記第1のセットおよびパッドの前記第2のセット内の各パッドは、前記金属層上に形成された金属スタックを含む、請求項11に記載の相互接続層担持構造。 - その上に搭載されたチップを相互接続するために用いられる相互接続基板を製作する方法であって、
その上の第1のチップのための電極の第1のグループおよび第2のチップのための電極の第2のグループが設けられた有機ベース基板を用意することと、
相互接続層が電極の前記第1のグループと前記電極の前記第2のグループとの間の前記有機ベース基板上の画定された領域に位置付けられるように、前記相互接続層を前記有機ベース基板に取り付けることであって、前記相互接続層は、前記第1のチップのためのパッドの第1のセット、前記第2のチップのためのパッドの第2のセットであって、前記第1のセットおよび前記第2のセットの各パッドは、相互接続層の内側に配置され、片側を除くすべてが相互接続層によって囲まれ、前記有機ベース基板の反対側にある相互接続層の表面と同一平面上にある表面を有するセット、有機絶縁材料内で同一平面上にある複数のトレースのそれぞれを備えたパッドの前記第1のセットおよびパッドの前記第2のセットと一体的に形成された複数のトレースを備える、前記取り付けることと
を含む方法。 - 前記相互接続層を取り付けることは、
相互接続層担持構造を前記有機ベース基板上に置くことであって、前記相互接続層担持構造は、相互接続層、前記相互接続層上の剥離層、および前記剥離層上の支持基板を含む、前記置くことと、
前記剥離層を除去することによって、前記相互接続層を前記支持基板から剥離することと
を含む、請求項14に記載の方法。 - 前記相互接続層は底部接着層を含み、前記相互接続層を取り付けることは、
前記相互接続層を剥離する前に、前記相互接続層を前記有機ベース基板に接合するように、前記底部接着層を硬化させること
をさらに含む、請求項14に記載の方法。
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