JP6875422B2 - モールド経由の冷却チャネルを有する半導体デバイスアセンブリ - Google Patents
モールド経由の冷却チャネルを有する半導体デバイスアセンブリ Download PDFInfo
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Description
付けられ得る。凝縮器405は、内部表面465を有する外壁462、および内部表面465に位置する凝縮領域468を含む。外壁462は、隙間(開口)152を介して封入材料110中のチャネル150に流体的(fluidly)に結合された、孔(空洞)もしくは内部コンパートメント467を画定する。いくつかの実施形態では、外壁462は、銅、アルミニウム、セラミック材料、もしくは適した高い熱伝導性を有する他の材料などの熱伝導物質で形成され得る。1つの実施形態では、外壁462はコンパートメント467の形状を画定するために圧着され(crimped)または曲げられた押し出し金属から形成される。他の実施形態では、コンパートメント467は、ろう付けもしくは他の金属接合法により接合された導電性金属部材から形成される。
Claims (32)
- 基底領域および前記基底領域に隣接する周辺領域を有する第1の半導体ダイと、
前記基底領域上にある少なくとも1つの第2の半導体ダイと、
前記第1および第2の半導体ダイに結合された熱移動デバイスと、
を含み、
前記熱移動デバイスは、
前記第2の半導体ダイを少なくとも部分的に囲む封入材料と、
前記封入材料中に形成され、前記第1の半導体ダイの前記周辺領域に隣接する空洞を少なくとも部分的に画定するビアと、
前記空洞を少なくとも部分的に充填する作動流体と、
を含み、
前記第1の半導体ダイの前記周辺領域は活性表面を含み、前記活性表面は前記作動流体に直接接触している、
半導体デバイスアセンブリ。 - 前記封入材料は上部表面を含み、
前記空洞は、前記上部表面に形成された開口を含み、
前記熱移動デバイスは、前記上部表面に結合され且つ前記空洞の前記開口を覆う放熱体をさらに含む、
請求項1に記載の半導体デバイスアセンブリ。 - 基底領域および前記基底領域に隣接する周辺領域を有する第1の半導体ダイと、
前記基底領域上にある少なくとも1つの第2の半導体ダイと、
前記第1および第2の半導体ダイに結合された熱移動デバイスと、
を含み、
前記熱移動デバイスは、
前記第2の半導体ダイを少なくとも部分的に囲む封入材料と、
前記封入材料中に形成され、前記第1の半導体ダイの前記周辺領域に隣接する空洞を少なくとも部分的に画定するビアと、
前記空洞を少なくとも部分的に充填する作動流体と、
を含み、
前記ビアは界面材料を含み、
前記界面材料は、前記第1の半導体ダイの前記周辺領域と前記作動流体との間にあり、
前記作動流体は前記界面材料の一方の面に直接接触しており、
前記第1の半導体ダイの前記周辺領域は活性表面を含み、前記活性表面は前記界面材料の他方の面に直接接触している、
半導体デバイスアセンブリ。 - 前記第1の半導体ダイの前記周辺領域は導電性フィーチャを含み、
前記導電性フィーチャは前記作動流体に直接接触している、
請求項1に記載の半導体デバイスアセンブリ。 - 前記封入材料は上部表面を含み、
前記空洞は前記上部表面に形成された開口を含み、
前記熱移動デバイスは、前記上部表面に結合され且つ前記開口を介して前記空洞と流体連結する凝縮器構造をさらに含む、
請求項1に記載の半導体デバイスアセンブリ。 - 前記凝縮器構造は外壁を含み、
前記外壁は内部コンパートメントを画定し、
前記作動流体は前記内部コンパートメントを少なくとも部分的に充填する、
請求項5に記載の半導体デバイスアセンブリ。 - 前記第2の半導体ダイは外周を有し、
前記封入材料は前記外周と前記空洞との間の側壁部分を含む、
請求項1に記載の半導体デバイスアセンブリ。 - 前記空洞は前記第2の半導体ダイの前記外周を囲むチャネルである、
請求項7に記載の半導体デバイスアセンブリ。 - 前記空洞は第1の穴であり、
前記封入材料は、前記第1の穴に近い第2の穴を少なくとも部分的に画定し、
前記作動流体は、前記第2の穴を少なくとも部分的に充填する、
請求項1に記載の半導体デバイスアセンブリ。 - 前記第2の半導体ダイは、第1の辺および前記第1の辺の反対側の第2の辺を含み、
前記空洞は、前記第2の半導体ダイの前記第1の辺にわたって延びる第1のトレンチであり、
前記封入材料は、前記第2の半導体ダイの前記第2の辺にわたって延びる第2のトレンチを少なくとも部分的に画定し、
前記作動流体は、前記第2のトレンチを少なくとも部分的に充填する、
請求項1に記載の半導体デバイスアセンブリ。 - 前記空洞は第1の空洞であり、
前記封入材料は、前記第2の半導体ダイの上の上部領域を含み、
前記封入材料は前記上部領域中の第2の空洞を画定し、
前記作動流体は、前記第2の空洞を少なくとも部分的に充填する、
請求項1に記載の半導体デバイスアセンブリ。 - 第1のダイおよび前記第1のダイの上の第2のダイの積層を含む複数の半導体ダイと、
前記複数の半導体ダイを少なくとも部分的に封入する封入材料であって、前記封入材料は、前記第1のダイの周辺領域上に位置する空洞を画定する第1および第2の側壁を含み、前記周辺領域は活性表面を含む、封入材料と、
前記空洞を少なくとも部分的に充填する熱導体であって、前記活性表面に直接接触している熱導体と、
を含む半導体デバイスアセンブリ。 - 前記熱導体は誘電性流体を含む、
請求項12に記載の半導体デバイスアセンブリ。 - 前記空洞は第1の空洞であり、
前記封入材料は、前記第2のダイの積層の第2の領域上に位置する第2の空洞を画定する第3および第4の側壁をさらに含み、
前記第1のダイの前記周辺領域は、前記第2のダイの積層の前記第2の領域の周辺である、
請求項12に記載の半導体デバイスアセンブリ。 - 前記熱導体は誘電性流体を含み、
前記誘電性流体は前記第1および第2の空洞を少なくとも部分的に充填する、
請求項14に記載の半導体デバイスアセンブリ。 - 前記熱導体は固体充填材料を含み、
前記固体充填材料は前記第1および第2の空洞を少なくとも部分的に充填する、
請求項14に記載の半導体デバイスアセンブリ。 - 前記熱導体は固体充填材料を含む、
請求項12に記載の半導体デバイスアセンブリ。 - 前記封入材料は上部表面をさらに含み、
前記第1のダイの前記周辺領域は前記上部表面よりも下にあり、
前記空洞は前記周辺領域と前記封入材料の前記上部表面との間に延び、
前記半導体デバイスアセンブリは、前記上部表面に結合された放熱体をさらに含む、
請求項12に記載の半導体デバイスアセンブリ。 - 前記熱導体は固体充填材料を含み、
前記固体充填材料は前記第1のダイの前記周辺領域を前記放熱体に熱的に結合する、
請求項18に記載の半導体デバイスアセンブリ。 - 前記固体充填材料は、前記放熱体および前記第1のダイの前記周辺領域の少なくとも1つにはんだ付けされている、
請求項19に記載の半導体デバイスアセンブリ。 - 前記熱導体は誘電性流体を含み、
前記誘電性流体は前記第1のダイの前記周辺領域を前記放熱体に熱的に結合する、
請求項18に記載の半導体デバイスアセンブリ。 - 前記第2のダイがメモリダイである、
請求項12に記載の半導体デバイスアセンブリ。 - 前記第1のダイがロジックダイである、
請求項22に記載の半導体デバイスアセンブリ。 - 半導体ダイの積層を封入材料中に少なくとも部分的に封入することであって、前記半導体ダイの積層は、第1のダイおよび前記第1のダイの上の第2のダイの積層を有する複数の半導体ダイを含む、ことと、
前記封入材料中にビアを形成することと、
を含み、
前記ビアを形成することは、
前記封入材料中に空洞を形成することであって、前記空洞は前記第1のダイの周辺領域上に位置し、前記周辺領域は活性表面を含む、ことと、
少なくとも前記空洞の中に熱導体を堆積することであって、前記熱導体は前記活性表面と接触している、ことと、
を含む、半導体デバイスアセンブリを製造する方法。 - 前記熱導体を堆積することは、作動流体を前記空洞内に注入することを含む、
請求項24に記載の方法。 - 前記空洞の開口の上に放熱体を配置することと、
前記放熱体を前記封入材料に結合することと、
をさらに含む請求項24に記載の方法。 - 前記放熱体は、前記空洞と熱伝導する内部コンパートメントを有する凝縮器構造であり、
前記熱導体を堆積することは、作動流体を前記空洞内および前記内部コンパートメント内に注入することを含む、
請求項26に記載の方法。 - 前記熱導体を堆積することは、固体充填材料を前記空洞内に堆積することを含む、
請求項24に記載の方法。 - 前記ビアを形成することは、前記固体充填材料を前記空洞の中の前記周辺領域の表面にはんだ付けすることをさらに含む、
請求項28に記載の方法。 - 前記空洞を形成することは、パッケージケーシング中にチャネルを形成することを含み、
前記パッケージケーシングは、前記半導体ダイの積層を少なくとも部分的に囲む、
請求項24に記載の方法。 - 前記封入材料を半導体ウェハの上に形成することと、
前記封入材料中に複数のチャネルを形成することと、
をさらに含み、
前記チャネルのうちの1つは前記空洞を含む、
請求項24に記載の方法。 - アレイに配置された複数の半導体ダイの上に前記封入材料を形成することと、
前記封入材料中に複数のチャネルを形成することと、
をさらに含み、
前記チャネルのうちの1つは前記空洞を含む、
請求項24に記載の方法。
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