JP7035014B2 - 性能が強化されたウェハレベルパッケージ - Google Patents
性能が強化されたウェハレベルパッケージ Download PDFInfo
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- JP7035014B2 JP7035014B2 JP2019507765A JP2019507765A JP7035014B2 JP 7035014 B2 JP7035014 B2 JP 7035014B2 JP 2019507765 A JP2019507765 A JP 2019507765A JP 2019507765 A JP2019507765 A JP 2019507765A JP 7035014 B2 JP7035014 B2 JP 7035014B2
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Description
本願は、開示全体が参照により本明細書に組み込まれている、2016年8月12日出願の米国特許仮出願第62/374,304号の利益を主張するものである。
Claims (22)
- 第1のデバイス層、及び前記第1のデバイス層上の第1の誘電体層を含む第1の薄肉ダイであって、前記第1のデバイス層は、前記第1のデバイス層の底面に複数の第1のダイ接点を含む、前記第1の薄肉ダイと、
少なくとも1つの第1の支持パッド、複数のパッケージ接点、及び再分布相互接続を含む多層再分布構造であって、
前記第1の薄肉ダイは前記多層再分布構造の上面の上にあり、
前記少なくとも1つの第1の支持パッドは前記多層再分布構造の底面の上にあり、かつ前記第1の薄肉ダイと垂直に整列されて、前記少なくとも1つの第1の支持パッドが前記第1の薄肉ダイの下に垂直に配置され、
前記複数のパッケージ接点は前記多層再分布構造の前記底面にあり、
前記再分布相互接続は前記複数のパッケージ接点を前記複数の第1のダイ接点のうちのある特定のものに接続し、前記少なくとも1つの第1の支持パッドは、前記複数のパッケージ接点および前記再分布相互接続と接触しておらず、かつ前記複数のパッケージ接点、前記再分布相互接続および前記複数の第1のダイ接点から電気的に絶縁された、
前記多層再分布構造と、
前記多層再分布構造の上にかつ前記第1の薄肉ダイの周りにある第1のモールドコンパウンドであって、前記第1の薄肉ダイの上面を超えて広がって、前記第1のモールドコンパウンド内で前記第1の薄肉ダイの上に開口部を画定し、前記第1の薄肉ダイの前記上面は前記開口部の底部で露出している、前記第1のモールドコンパウンドと、
前記開口部を充填し、かつ前記第1の薄肉ダイの前記上面と接触している第2のモールドコンパウンドと、
を備える、装置。 - 前記複数のパッケージ接点及び前記少なくとも1つの第1の支持パッドは、共通の導電層から形成される、請求項1に記載の装置。
- 前記少なくとも1つの第1の支持パッドの底面及び前記複数のパッケージ接点のそれぞ
れの底面は同じ平板内にある、請求項1に記載の装置。 - 前記多層再分布構造の底面にあり、前記第1の薄肉ダイの下に垂直に配置されない少なくとも1つの第2の支持パッドをさらに含み、
前記少なくとも1つの第2の支持パッドは前記複数のパッケージ接点および前記再分布相互接続から電気的に絶縁されている、請求項1に記載の装置。 - 前記少なくとも1つの第1の支持パッド及び前記少なくとも1つの第2の支持パッドは分離している、請求項4に記載の装置。
- 前記少なくとも1つの第1の支持パッド及び前記少なくとも1つの第2の支持パッドは互いに接続される、請求項4に記載の装置。
- 前記第1の薄肉ダイは微小電気機械システム(MEMS)部品を提供する、請求項1に記載の装置。
- 前記第1の薄肉ダイはシリコンオンインシュレータ(SOI)構造から形成され、
前記第1の薄肉ダイの前記第1のデバイス層は前記SOI構造のシリコンエピタキシ層から形成され、
前記第1の薄肉ダイの前記第1の誘電体層は前記SOI構造の埋め込み酸化層である、請求項1に記載の装置。 - 前記多層再分布構造の前記上面の上にある第2のダイをさらに含み、
前記第2のダイは、第2のデバイス層、及び前記第2のデバイス層の上のシリコン基板を有し、
前記第1のモールドコンパウンドは前記第2のダイを封入する、請求項1に記載の装置。 - 前記第1の薄肉ダイはMEMS部品を提供し、前記第2のダイは、前記MEMS部品を制御する相補型金属酸化膜半導体(CMOS)コントローラを提供する、請求項9に記載の装置。
- 前記多層再分布構造の前記上面の上にある第3の薄肉ダイをさらに含み、前記第3の薄肉ダイは、
第3のデバイス層、及び前記第3のデバイス層の上の第2の誘電体層を有し、
前記第1のモールドコンパウンドは、前記第3の薄肉ダイの上面を超えて広がって、前記第1のモールドコンパウンド内で前記第3の薄肉ダイの上に第2の開口部を画定し、前記第3の薄肉ダイの前記上面は前記第2の開口部の底部で露出しており、
前記第2のモールドコンパウンドは前記第2の開口部を充填し、かつ前記第3の薄肉ダイの前記上面と接触している、請求項9に記載の装置。 - 少なくとも1つの第2の支持パッド及び少なくとも1つの第3の支持パッドをさらに含み、
前記少なくとも1つの第2の支持パッド及び前記少なくとも1つの第3の支持パッドは、前記多層再分布構造の前記底面の上にあり、
前記少なくとも1つの第2の支持パッド及び前記少なくとも1つの第3の支持パッドは、前記複数のパッケージ接点および前記再分布相互接続から電気的に絶縁され、
前記少なくとも1つの第2の支持パッドは、前記第1の薄肉ダイの下に垂直に配置されておらず、かつ前記第3の薄肉ダイの下に垂直に配置されておらず、
前記少なくとも1つの第3の支持パッドは、前記第3の薄肉ダイと垂直に整列されて、
前記少なくとも1つの第3の支持パッドが前記第3の薄肉ダイの下に垂直に配置される、請求項11に記載の装置。 - 前記第1の薄肉ダイはMEMS部品を提供し、前記第2のダイは前記MEMS部品を制御するCMOSコントローラを提供し、前記第3の薄肉ダイはSOI構造から形成され、
前記第3の薄肉ダイの前記第3のデバイス層は前記SOI構造のシリコンエピタキシ層から形成され、前記第3の薄肉ダイの前記第2の誘電体層は前記SOI構造の埋め込み酸化層である、請求項11に記載の装置。 - 前記多層再分布構造は少なくとも1つの構造パッドをさらに含み、
前記少なくとも1つの構造パッド及び前記再分布相互接続は共通の導電層から形成され、
前記少なくとも1つの構造パッドは、前記第1の薄肉ダイの下に垂直にあり、かつ前記再分布相互接続および前記複数の第1のダイ接点から電気的に絶縁されている、請求項1に記載の装置。 - 前記第2のモールドコンパウンドは2W/m・Kを上回る熱伝導率を有する、請求項1に記載の装置。
- 前記第2のモールドコンパウンドは1E6 Ohm-cmを上回る電気抵抗率を有する、請求項1に記載の装置。
- 前記第1のモールドコンパウンドは前記第2のモールドコンパウンドと同じ材料から形成される、請求項1に記載の装置。
- 前記第1のモールドコンパウンド及び前記第2のモールドコンパウンドは異なる材料から形成される、請求項1に記載の装置。
- 前記多層再分布構造はガラス繊維がない、請求項1に記載の装置。
- 前記再分布相互接続と前記複数の第1のダイ接点との間の接続にははんだがない、請求項1に記載の装置。
- 第1のデバイス層、及び前記第1のデバイス層の上の第1の誘電体層を含む第1の薄肉ダイであって、前記第1のデバイス層は、前記第1のデバイス層の底面に複数の第1のダイ接点を有する、前記第1の薄肉ダイと、
少なくとも1つの構造パッド、複数のパッケージ接点、及び再分布相互接続を含む多層再分布構造であって、
前記第1の薄肉ダイは前記多層再分布構造の上面の上にあり、
前記複数のパッケージ接点は前記多層再分布構造の底面の上にあり、
前記再分布相互接続は前記複数のパッケージ接点を前記複数の第1のダイ接点のうちのある特定のものに接続し、
前記少なくとも1つの構造パッド及び前記再分布相互接続は、共通の導電層から形成され、
前記少なくとも1つの構造パッドは、前記第1の薄肉ダイの下に垂直にあり、かつ前記再分布相互接続および前記複数の第1のダイ接点から電気的に絶縁されている、
前記多層再分布構造と、
前記多層再分布構造の上にかつ前記第1の薄肉ダイの周りにある第1のモールドコンパウンドであって、前記第1の薄肉ダイの上面を超えて広がって、前記第1のモールドコン
パウンド内で前記第1の薄肉ダイの上に開口部を画定し、前記第1の薄肉ダイの前記上面は前記開口部の底部で露出している、前記第1のモールドコンパウンドと、
前記開口部を充填し、かつ前記第1の薄肉ダイの前記上面と接触している第2のモールドコンパウンドと、
を備える、装置。 - 第1のダイ及び第1のモールドコンパウンドを有するモールドウェハを提供することであって、
前記第1のダイは、第1のデバイス層、前記第1のデバイス層の上の第1の誘電体層、及び前記第1の誘電体層の上の第1のシリコン基板を備え、前記第1のデバイス層は前記第1のデバイス層の底面に複数の第1のダイ接点を備え、
前記第1のダイの上面は前記第1のシリコン基板の上面であり、前記第1のダイの底面は前記第1のデバイス層の前記底面であり、
前記第1のモールドコンパウンドは前記第1のダイの側部及び上面を封入し、前記第1のデバイス層の前記底面は露出している、
前記提供することと、
多層再分布構造を前記モールドウェハの下に形成することであって、
前記多層再分布構造は少なくとも1つの第1の支持パッド、複数のパッケージ接点、及び再分布相互接続を備え、
前記少なくとも1つの第1の支持パッドは、前記多層再分布構造の底面の上にあり、かつ前記第1のダイと垂直に整列されて、前記少なくとも1つの第1の支持パッドが前記第1のダイの下に垂直に配置され、
前記複数のパッケージ接点は、前記多層再分布構造の前記底面の上にあり、
前記再分布相互接続は、前記複数のパッケージ接点を前記複数の第1のダイ接点のうちのある特定のものに接続し、前記少なくとも1つの第1の支持パッドは、前記複数のパッケージ接点および前記再分布相互接続と接触しておらず、かつ前記複数のパッケージ接点、前記再分布相互接続および前記複数の第1のダイ接点から電気的に絶縁された、
前記形成することと、
前記第1のモールドコンパウンドを薄肉化して、前記第1のシリコン基板の前記上面を露出させることと、
第1の薄肉ダイを提供し、かつ前記第1のモールドコンパウンド内で前記第1の薄肉ダイの上に開口部を形成するために、前記第1のダイの前記第1のシリコン基板を除去することであって、前記少なくとも1つの第1の支持パッドは前記第1の薄肉ダイの下に垂直にあり、前記第1の薄肉ダイは前記開口部の底部で露出した上面を有する、前記除去することと、
前記開口部を充填し、かつ前記第1の薄肉ダイの前記上面に直接接触するように第2のモールドコンパウンドを塗布することと、
を含む、方法。
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