JP6013705B2 - 部分パット上にバンプを有するフリップチップ相互接続構造を形成する半導体デバイスおよびその方法 - Google Patents
部分パット上にバンプを有するフリップチップ相互接続構造を形成する半導体デバイスおよびその方法 Download PDFInfo
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- JP6013705B2 JP6013705B2 JP2011011427A JP2011011427A JP6013705B2 JP 6013705 B2 JP6013705 B2 JP 6013705B2 JP 2011011427 A JP2011011427 A JP 2011011427A JP 2011011427 A JP2011011427 A JP 2011011427A JP 6013705 B2 JP6013705 B2 JP 6013705B2
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- bump
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- semiconductor die
- solder
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Description
(項目1)
半導体ダイの表面上に形成された複数のバンプを有する、半導体ダイを提供するステップと、
基板を提供するステップと、
露出側壁を有し、SRO+2*SRR−2Xによって定義される設計規則に従ってサイズ決定される相互接続部位を伴って、前記基板上に複数の伝導性トレースを形成するステップであって、式中、SROは、前記相互接続部位上の開口部であり、SRRは、製造工程のための位置合わせであり、Xは、接触パッドの前記露出側壁の厚さの関数である、ステップと、
前記バンプが前記相互接続部位の頂面および側面を覆うように、前記バンプを前記相互接続部位に接着するステップと、
前記半導体ダイと基板との間で前記バンプの周囲に封入材を堆積させるステップと
を含む、半導体素子を作製する方法。
(項目2)
Xの値は、5〜20ミクロンに及ぶ、上記項目のいずれかに記載の方法。
(項目3)
前記バンプは、Xという最大距離だけ前記相互接続部位と不整合である、上記項目のいずれかに記載の方法。
(項目4)
前記バンプは、可融性部分と、非可融性部分とを含む、上記項目のいずれかに記載の方法。
(項目5)
前記相互接続構造の前記非可融性部分は、金、銅、ニッケル、鉛はんだ、または鉛スズ合金を含む、上記項目のいずれかに記載の方法。
(項目6)
前記相互接続構造の前記可融性部分は、スズ、無鉛合金、スズ銀合金、スズ・銀・銅合金、スズ・銀・インジウム合金、共晶はんだ、または銀、銅、あるいは鉛を伴う他のスズ合金を含む、上記項目のいずれかに記載の方法。
(項目7)
半導体ダイを提供するステップと、
基板を提供するステップと、
露出側壁を有する相互接続部位を伴って、前記基板上に複数の伝導性トレースを形成するステップと、
前記半導体ダイと前記基板の前記相互接続部位との間に、複数の相互接続構造を形成するステップと、
前記相互接続構造が、前記相互接続部位の頂面および側面を覆い、前記相互接続部位の前記露出側壁の厚さの関数であるXという最大距離だけ前記基板上に延在するように、前記相互接続構造を前記相互接続部位に接着するステップと、
前記半導体ダイと基板との間に封入材を堆積させるステップと
を含む、半導体素子を作製する方法。
(項目8)
Xの値は、5〜20ミクロンに及ぶ、上記項目のいずれかに記載の方法。
(項目9)
前記相互接続部位は、SRO+2*SRR−2Xによって定義される設計規則に従ってサイズ決定され、式中、SROは、前記相互接続部位上の開口部であり、SRRは、製造工程のための位置合わせである、上記項目のいずれかに記載の方法。
(項目10)
前記相互接続構造は、可融性部分と、非可融性部分とを含む、上記項目のいずれかに記載の方法。
(項目11)
前記相互接続構造の前記非可融性部分は、金、銅、ニッケル、鉛はんだ、または鉛スズ合金を含む、上記項目のいずれかに記載の方法。
(項目12)
前記相互接続構造の前記可融性部分は、スズ、無鉛合金、スズ銀合金、スズ・銀・銅合金、スズ・銀・インジウム合金、共晶はんだ、または銀、銅、あるいは鉛を伴う他のスズ合金を含む、上記項目のいずれかに記載の方法。
(項目13)
前記相互接続構造は、伝導柱と、前記伝導柱上に形成されるバンプとを含む、上記項目のいずれかに記載の方法。
(項目14)
半導体ダイを提供するステップと、
基板を提供するステップと、
露出側壁を有する相互接続部位を伴って、前記基板上に複数の伝導性トレースを形成するステップと、
前記半導体ダイと前記基板の前記相互接続部位との間に、複数の相互接続構造を形成するステップと、
前記相互接続構造が、前記相互接続部位の頂面および側面を覆い、前記相互接続部位の前記露出側壁の厚さの関数であるXという最大距離だけ前記基板上に延在するように、前記相互接続構造を前記相互接続部位に接着するステップと
を含む、半導体素子を作製する方法。
(項目15)
前記半導体ダイと基板との間に封入材を堆積させるステップをさらに含む、上記項目のいずれかに記載の方法。
(項目16)
Xの値は、5〜20ミクロンに及ぶ、上記項目のいずれかに記載の方法。
(項目17)
前記相互接続部位は、SRO+2*SRR−2Xによって定義される設計規則に従ってサイズ決定され、式中、SROは、前記相互接続部位上の開口部であり、SRRは、製造工程のための位置合わせである、上記項目のいずれかに記載の方法。
(項目18)
前記相互接続構造は、可融性部分と、非可融性部分とを含む、上記項目のいずれかに記載の方法。
(項目19)
前記相互接続構造の前記非可融性部分は、金、銅、ニッケル、鉛はんだ、または鉛スズ合金を含み、前記相互接続構造の前記可融性部分は、スズ、無鉛合金、スズ銀合金、スズ・銀・銅合金、スズ・銀・インジウム合金、共晶はんだ、または銀、銅、あるいは鉛を伴う他のスズ合金を含む、上記項目のいずれかに記載の方法。
(項目20)
前記相互接続構造は、伝導柱と、前記伝導柱上に形成されるバンプとを含む、上記項目のいずれかに記載の方法。
(項目21)
半導体ダイと、
露出側壁を伴う相互接続部位を有する基板上に形成された複数の伝導性トレースを有する、基板と、
前記半導体ダイと前記基板の前記相互接続部位との間に形成される、複数の相互接続構造であって、前記相互接続構造が、前記相互接続部位の頂面および側面を覆い、前記相互接続部位の前記露出側壁の厚さの関数であるXという最大距離だけ前記基板上に延在するように、前記相互接続部位に接着される、相互接続構造と
前記半導体ダイと基板との間に堆積させられる、封入材と
を備える、半導体素子。
(項目22)
Xの値は、5〜20ミクロンに及ぶ、上記項目のいずれかに記載の半導体素子。
(項目23)
前記相互接続構造は、前記相互接続部位の頂面および側面を覆う、上記項目のいずれかに記載の方法。
(項目24)
前記相互接続部位は、SRO+2*SRR−2Xによって定義される設計規則に従ってサイズ決定され、式中、SROは、前記相互接続部位上の開口部であり、SRRは、製造工程のための位置合わせである、上記項目のいずれかに記載の半導体素子。
(項目25)
前記相互接続構造は、可融性部分と、非可融性部分とを含む、上記項目のいずれかに記載の半導体素子。
半導体素子は、半導体金型の表面上に形成された複数のバンプを有する、半導体金型を有する。バンプは、可溶部分および非可溶部分を含むことができる。伝導性トレースは、露出側壁を有し、SRO+2*SRR2Xによって定義される設計規則に従ってサイズ決定される相互接続部位を伴って基板上に形成され、式中、SROは、相互接続部位上の開口部であり、SRRは、製造工程のための位置合わせであり、Xは、接触パッドの露出側壁の厚さの関数である。バンプは、5〜20ミクロンに及ぶXという最大距離だけ相互接続部位と不整合である。バンプは、バンプが相互接続部位の頂面および側面を覆うように、相互接続部位に接着される。封入材が、半導体金型と基板との間でバンプの周囲に堆積させられる。
式中、SROは、はんだレジスト開口部であり、
SRRは、はんだ位置合わせまたは製造整合公差であり、
Xは、バンプが接触パッドの縁および側壁に重なることができる量を定義する、設計規則である。
Claims (8)
- 半導体素子を作製する方法であって、前記方法は、
半導体ダイを提供することと、
基板を提供することと、
前記基板上に複数の伝導性トレースを形成することであって、前記複数の伝導性トレースは、相互接続部位を含む、ことと、
前記相互接続部位の上方に複数のはんだレジスト開口部を形成することであって、各相互接続部位は、対応するはんだレジスト開口部よりも大きく作成され、前記相互接続部位の側壁は、前記はんだレジスト開口部と前記相互接続部位との間の不整合に起因して露出される、ことと、
前記半導体ダイと前記相互接続部位との間に、複数のはんだバンプを形成することであって、前記複数のはんだバンプの長さは、前記複数のはんだバンプの長さに対して垂直な前記複数のはんだバンプの幅よりも大きく、前記複数のはんだバンプの幅は、前記複数のはんだバンプの長さに沿って先細であり、前記半導体ダイの近くで広く、かつ、前記半導体ダイとは反対側の前記複数のはんだバンプの端の近くで狭い、ことと、
各はんだバンプが対応する相互接続部位の頂面および側面に重なって湿潤させるように前記相互接続部位の上に前記複数のはんだバンプをリフローすることによって、前記複数のはんだバンプを前記相互接続部位に接着することであって、前記複数のはんだバンプの幅は、前記複数の伝導性トレースを横断するように延在し、かつ、前記複数のはんだバンプの長さは、前記複数の伝導性トレースに沿って延在する、ことと、
前記半導体ダイと前記基板との間に封入材を堆積させることと
を含む、方法。 - 前記複数のはんだバンプは、可融性部分と、非可融性部分とを含む、請求項1に記載の方法。
- 前記複数のはんだバンプの前記非可融性部分は、金、銅、ニッケル、鉛はんだ、または鉛スズ合金を含む、請求項2に記載の方法。
- 半導体素子を作製する方法であって、前記方法は、
半導体ダイを提供することと、
基板を提供することと、
露出側壁を含む相互接続部位を伴って、前記基板上に複数の伝導性トレースを形成することと、
前記相互接続部位の上方に複数のはんだレジスト開口部を形成することであって、前記相互接続部位およびはんだレジスト開口部を形成するために用いられる設計規則は、個々の相互接続部位の物理的面積に対する個々のはんだレジスト開口部の不整合を可能にする、ことと、
前記半導体ダイと前記相互接続部位との間に、複数のはんだバンプを形成することであって、前記複数の伝導性トレースに沿った前記複数のはんだバンプの長さは、前記複数の伝導性トレースを横断する前記複数のはんだバンプの幅よりも大きい、ことと、
前記複数のはんだバンプが前記相互接続部位の頂面および側面を覆うように、前記複数のはんだバンプを前記相互接続部位に接着することと
を含む、方法。 - 前記半導体ダイと前記基板との間に封入材を堆積させることをさらに含む、請求項4に記載の方法。
- 前記複数のはんだバンプの非可融性部分は、金、銅、ニッケル、鉛はんだ、または鉛スズ合金を含み、前記複数のはんだバンプの可融性部分は、スズ、無鉛合金、スズ銀合金、スズ・銀・銅合金、スズ・銀・インジウム合金、共晶はんだ、または銀、銅、あるいは鉛を伴う他のスズ合金を含む、請求項4に記載の方法。
- 前記複数のはんだバンプは、前記半導体ダイ上の伝導柱上に形成されている、請求項4に記載の方法。
- 半導体ダイと、
基板と、
前記基板上に形成された複数の伝導性トレースであって、相互接続部位を含む複数の伝導性トレースと、
前記相互接続部位の上方に形成された複数のはんだレジスト開口部であって、各相互接続部位は、対応するはんだレジスト開口部よりも大きく、各相互接続部位は、前記はんだレジスト開口部と前記相互接続部位との間の不整合に起因して露出された側壁を含む、複数のはんだレジスト開口部と、
前記半導体ダイと前記相互接続部位との間に形成された複数の相互接続構造であって、前記相互接続構造が前記相互接続部位の頂面および側面を覆うように、前記相互接続構造は、前記相互接続部位に接着され、前記複数の伝導性トレースに沿った前記相互接続構造の長さは、前記複数の伝導性トレースを横断する前記相互接続構造の幅よりも大きい、複数の相互接続構造と、
前記半導体ダイと前記基板との間に堆積させられた封入材と
を備える、半導体素子。
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US12/969,451 | 2010-12-15 |
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TW201145419A (en) | 2011-12-16 |
US20110304058A1 (en) | 2011-12-15 |
US9345148B2 (en) | 2016-05-17 |
TWI539540B (zh) | 2016-06-21 |
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