JP2010130004A - 集積回路基板及びマルチチップ集積回路素子パッケージ - Google Patents
集積回路基板及びマルチチップ集積回路素子パッケージ Download PDFInfo
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- JP2010130004A JP2010130004A JP2009236114A JP2009236114A JP2010130004A JP 2010130004 A JP2010130004 A JP 2010130004A JP 2009236114 A JP2009236114 A JP 2009236114A JP 2009236114 A JP2009236114 A JP 2009236114A JP 2010130004 A JP2010130004 A JP 2010130004A
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- integrated circuit
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- pads
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Abstract
【解決手段】表面に複数の導電性パッドを有する集積回路チップと、集積回路チップが搭載される印刷回路基板とを有し、印刷回路基板は、複数の導電性パッドに対応して互いに異なる第1及び第2高さを有して交互に配列される複数の第1及び第2導電性ボンドフィンガと、第1導電性ボンドフィンガ114を第2導電性ボンドフィンガ113と比べて相対的に高い高さを有するように支持する複数の第1絶縁支持体112とを含み、さらに、複数の導電性パッドの内の複数の第1導電性パッドと、対応する第1導電性ボンドフィンガとを各々電気的に接続する複数の第1電気接続体と、複数の導電性パッドの内の複数の第2導電性パッドと、対応する第2導電性ボンドフィンガとを各々電気的に接続する複数の第2電気接続体とを有する。
【選択図】図3
Description
このようなボンディング技術は、二次元配列を有するパッドそれぞれに接続されるソルダーバンプ(solder bumps)を採用することができる。
しかしながら、フリップチップボンディング技術を、すべてのチップと基板との接続に適用することは困難である。
例えば、周辺領域、あるいは他のコンタクト領域に沿って近接するように配列されるコンタクトパッドを有する集積回路チップに印刷回路基板を電気的に接続するためにはワイヤボンディング技術(wire bonding techniques)を用いることができる。
素子の不良を低減するためには、互いに異なる長さのワイヤボンドが相対的に大きな間隔を有するコンタクトパッドとして用いられる。しかし、互いに異なる長さのワイヤボンドを用いると、同期化したデータ及び信号を送受信するパッドとの間に、不均一な信号遅延のような多様な問題点を引き起こし、上記チップの電気的特性を悪化させる原因となるという問題がある。
前記複数の第1及び第2電気接続体は、ワイヤ又はビームリードであることが好ましい。
前記複数の第1及び第2電気接続体は、等価長さを有することが好ましい。
前記集積回路チップは、前記印刷回路基板にフリップチップ実装法にて搭載され、前記複数の第1及び第2電気接続体はソルダーボンドであることが好ましい。
前記集積回路チップは、前記印刷回路基板の第1側面にフリップチップ実装法で搭載され、前記印刷回路基板の前記第1側面は、交互に配列される前記第1及び第2導電性ボンドフィンガを含み、前記印刷回路基板の第2側面は複数の基板パッドを備え、該複数の基板パッドは貫通電極により前記第1及び第2導電性ボンドフィンガと電気的に接続されることが好ましい。
前記集積回路チップは、前記印刷回路基板の第1側面にソルダーボンドを用いたフリップチップ実装法で搭載され、前記ソルダーボンドは交互に配列された前記第1及び第2導電性ボンドフィンガと前記複数の導電性パッドとを電気的に接続させる役割をすることが好ましい。
前記複数のソルダーボールは、前記印刷回路基板と接触して前記第2ボンドフィンガと平らな境界面をなすことが好ましい。
前記第1ボンドフィンガは、前記第2ボンドフィンガの内の少なくとも1つに対して異なる幅を有することが好ましい。
前記第1集積回路チップに接合される複数の第2集積回路チップをさらに有することが好ましい。
前記複数の第2集積回路チップのうちの1つに提供されたパッドと前記複数の導電性パッド中の対応する1つとを電気的に接続する貫通電極をさらに有することが好ましい。
第1及び第2ボンドフィンガと半導体チップとの間に電気接続が形成されるとき、第1ボンドフィンガ及び第2ボンドフィンガは、印刷回路基板の段差に起因して電気的に隔離される。これにより、第1ボンドフィンガ及び第2ボンドフィンガ間の平面的距離を極端に縮小することができるという効果がある。
すなわち、第1ボンドフィンガ及び第2ボンドフィンガそれぞれの幅は、従来に比べて著しく増加させることができる。また、印刷回路基板の段差によって、電気接続の間隔も従来に比べて著しく増加させることができる。結果的に、第1ボンドフィンガ及び第2ボンドフィンガの配置効率を高めることで、優秀な電気的特性を有する半導体パッケージを実現することができるという効果がある。
なお、説明の都合上、図面において、層及び領域の厚みは誇張されており、図示する形態が実際とは異なる場合がある。また、ある層が、他の層または基板(substrate)の「上」にあると記載した場合、これは他の層または基板の「直上に」直接形成される場合に限らず、それらの間に第3の層が介在する場合も含む。明細書の全体において同一の参照番号は、同一の構成要素を示す。
本発明の第1の実施形態によれば、中央開口部110Hを有する印刷回路基板(PCB)110は、接着層6により下部半導体チップ11と結合される。下部半導体チップ11は複数のチップパッド(chip pads)13を備える。
図に示すように、基板パッド116に電気的接続を提供するソルダーボール(solder balls)3が付着される。
本発明のいくつかの実施形態によれば、基板パッド116は、貫通電極(through−board electrical interconnects、図示せず)を経由して対応する導電性ボンドフィンガ(electrically conductive bondfingers)113、114と電気的に接続される。
図15は、図1の集積回路チップパッケージの他の実施形態の断面図である。
図に示すように、電気接続体5はワイヤまたはビームリードとすることができる。例えば、図15に示すように、図2のワイヤ5はビームリード5Aに代替することができる。
さらに図1を参照すると、導電性ボンドフィンガ113、114は、ボンドフィンガ領域(bond finger regions)110Rに、幅W1を有するように並んで配列される。導電性ボンドフィンガ113、114の長さはL1として表示する。
図3に示すように、印刷回路基板110は、基礎表面111Sを有する支持基礎領域111及び支持基礎領域111から上方に突出した絶縁突出領域112を備える。
絶縁突出領域112は、基礎表面111Sに対して相対的に持ち上げられた位置にある上部表面112Sを備える。絶縁突出領域112は図1、図2の電気接続体5を電気的に閉じ込める(confinement)効果を提供する。
図4〜図14は、図3の導電性ボンドフィンガと異なる、図1のEf部分の複数の導電性ボンドフィンガに対する本発明のいくつかの実施例を詳細に示す斜視図である。
図4に示すように、印刷回路基板110Aの一部の領域に絶縁突出領域112A及び支持基礎領域111を形成することができる。絶縁突出領域112A上に上部ボンドフィンガ114Aが提供され、支持基礎領域111上に下部ボンドフィンガ113が提供される。
図6に示すように、絶縁突出領域112A及び112A”は支持基礎領域111の基礎表面111Sに関して相対的に互いに異なる高さを有するように形成されている。
図7に示すように、下部ボンドフィンガ113Bは上部ボンドフィンガ114Aの前(半導体チップ方向)に位置することができ、隣接する絶縁突出領域112Aとの間に側面ギャップを提供することができる。
図9に示すように、支持基礎領域111は、基礎表面111S上に提供される複数の(下部)ボンドフィンガ113からさらに持ち上げられた基礎領域111Aを備える。本実施例において、絶縁突出領域112Aは持ち上げられた基礎領域111A上に形成される。絶縁突出領域112A、持ち上げられた基礎領域111A及び支持基礎領域111は、変更した印刷回路基板110Bを構成することができる。
持ち上げられた基礎領域111Aは第2の下部ボンドフィンガ113Aが提供された上部表面111S’を備える。絶縁突出領域112Aは上部ボンドフィンガ114Aが提供された他の上部表面112Sを備える。
図10に示すように、第2の下部ボンドフィンガ113A及び第1の下部ボンドフィンガ113Bは、互いに交互になるように配置される。
図11及び図12は、図10の実施例と類似するものである。
図11及び図12に示すように、変更した印刷回路基板110Cは図10の絶縁突出領域112Aを省略した形状とすることができる。上部ボンドフィンガ114B、114Cは、持ち上げられた基礎領域111Aに対して互い交互になるように配列され、互いに離隔するように形成される。
図13に示すように、印刷回路基板110’上に、互いに異なる幅を有して交互に突出する絶縁突出領域(alternating supplementary regions)112、112’、互いに異なる幅を有する上部ボンドフィンガ114、114’、及び互いに異なる幅を有する下部ボンドフィンガ113、113’が提供される。
図14に示すように、支持基礎領域111及び絶縁突出領域112Gの格子配列(staggered array)は、変更した印刷回路基板110Gを構成することができる。この場合、基礎表面111S、上部表面112S上のそれぞれに対応して下部ボンドフィンガ113G及び上部ボンドフィンガ114Gが提供される。
図16を参照して、本発明の他の実施形態によるマルチチップ基板パッケージを説明する。
マルチチップ基板は下部ボンドフィンガ113及び上部ボンドフィンガ114を有する印刷回路基板110を備える。下部ボンドフィンガ113及び上部ボンドフィンガ114は、電気接続体117により対応する基板パッド116と電気的に接続される。基板パッド116上にソルダーボール3が提供される。ソルダーボール3は印刷回路基板110の下部表面に突出される。
図17に示すように、モールディングコンパウンド7に覆われていて、互いに積層した複数の集積回路チップ11、11Aが提供される。集積回路チップ11、11Aのそれぞれはチップパッド13を備える。チップパッド13はワイヤ接続5により互いに電気的に接続される。第1の印刷回路基板110及び第2の印刷回路基板110”は、両方ともに下部及び上部ボンドフィンガ113、114を備える。下部及び上部ボンドフィンガ113、114はワイヤ接続5、5’により対応するチップパッド13と電気的に接続される。図に示すように、下部及び上部ボンドフィンガ113、114は貫通電極117により対応する基板パッド116と電気的に接続される。基板パッド116上にソルダーボール3が提供される。
図18及び図19に示すように、入/出力端子205を有するモジュールボード210が提供される。
モジュールボード210上に、本発明の実施形態によって形成された複数の半導体パッケージ207、207’が装着される。
図19のモジュールボード210は制御装置203を備えることができる。
図20に示すように、半導体パッケージ207は、モールディングコンパウンド7で覆われ、集積回路チップ11が装着されたパッケージ基板310を備える。集積回路チップ11は垂直配線117に接続されたソルダーボンド5Dを備える。図に示すように、垂直配線117は下部及び上部ボンドフィンガ113、114と電気的に接続される。このような電気接続はソルダー接続5B及び導電性スペーサ5Cにより提供される。導電性スペーサ5Cはソルダーボンド52で覆われた導電性プラグ51を備える。
カード基板410は、外部端子493及び第1及び第2基板460、470を備える。第1及び第2基板460、470のそれぞれは、図に示すように下部及び上部ボンドフィンガ113、114を備える。図22に示すように、外部端子493は内部配線492により対応する下部及び上部ボンドフィンガ113、114に接続することができる。図16と同様に、電気的に接続された複数の集積回路チップ11、11A及びモールディングコンパウンド7を提供することもできる。
図23に示した集積回路チップ11は、貫通電極15を用いて電気的に相互接続された多重チップの垂直積層を構成する。図23に示すように、集積回路チップ11の垂直積層構造は接着層9を用いて互いに接合することができ、周辺を覆うモールディングコンパウンド7で保護される。各チップは対応するチップパッド13を備える。本発明のいくつかの実施例によれば、貫通電極15はチップパッド13のうちの対応する個体を貫通することができる。
5、5’ 電気接続体(ワイヤ接続)
5A ビームリード
5B ソルダー接続
5C 導電性スペーサ
5D ソルダーボンド
6、9 接着層
7 モールディングコンパウンド
11、11A (下部)半導体チップ(集積回路チップ)
13 チップパッド
13T、15 貫通電極
51 導電性プラグ
52 ソルダーボンド
110、110’、110”110A、110B、110C、110G 印刷回路基板
110H 中央開口部
110R ボンドフィンガ領域
111 支持基礎領域
111A 持ち上げられた基礎領域
111S 基礎表面
111S’、112S 上部表面
112、112’、112A、112A’、112A”、112G 絶縁突出領域
113、113’、113A、113B、113G (下部)ボンドフィンガ
114、114’、114A、114B、114C、114G (上部)ボンドフィンガ
116 基板パッド
117 電気接続体(貫通電極、垂直配線)
121 導電性金属膜(Cu膜)
122 導電性金属膜(Ni膜)
123 導電性金属膜(Pd膜)
124 導電性金属膜(Au膜)
203 制御装置
205 入/出力端子
207、207’ 半導体パッケージ
210 モジュールボード
310 パッケージ基板
410 カード基板
460、470 第1及び第2基板
492 内部配線
493 外部端子
Claims (15)
- 表面に複数の導電性パッドを有する集積回路チップと、
前記集積回路チップが搭載される印刷回路基板とを有し、
前記印刷回路基板は、前記複数の導電性パッドに対応して互いに異なる第1及び第2高さを有して交互に配列される複数の第1及び第2導電性ボンドフィンガと、
前記第1導電性ボンドフィンガを前記第2導電性ボンドフィンガと比べて相対的に高い高さを有するように支持する複数の第1絶縁支持体とを含み、
さらに、前記複数の導電性パッドの内の複数の第1導電性パッドと、対応する前記第1導電性ボンドフィンガとを各々電気的に接続する複数の第1電気接続体と、
前記複数の導電性パッドの内の複数の第2導電性パッドと、対応する前記第2導電性ボンドフィンガとを各々電気的に接続する複数の第2電気接続体とを有することを特徴とする集積回路基板。 - 前記第2導電性ボンドフィンガのそれぞれは、対向する両側の少なくとも一部分に位置した前記複数の第1絶縁支持体の対によって限定されることを特徴とする請求項1に記載の集積回路基板。
- 前記複数の第1及び第2電気接続体は、ワイヤ又はビームリードであることを特徴とする請求項1に記載の集積回路基板。
- 前記複数の第1及び第2電気接続体は、等価長さを有することを特徴とする請求項3に記載の集積回路基板。
- 前記集積回路チップは、前記印刷回路基板にフリップチップ実装法にて搭載され、前記複数の第1及び第2電気接続体はソルダーボンドであることを特徴とする請求項1に記載の集積回路基板。
- 前記集積回路チップは、前記印刷回路基板の第1側面にフリップチップ実装法で搭載され、
前記印刷回路基板の前記第1側面は、交互に配列される前記第1及び第2導電性ボンドフィンガを含み、前記印刷回路基板の第2側面は複数の基板パッドを備え、該複数の基板パッドは貫通電極により前記第1及び第2導電性ボンドフィンガと電気的に接続されることを特徴とする請求項1に記載の集積回路基板。 - 前記集積回路チップは、前記印刷回路基板の第1側面にソルダーボンドを用いたフリップチップ実装法で搭載され、前記ソルダーボンドは交互に配列された前記第1及び第2導電性ボンドフィンガと前記複数の導電性パッドとを電気的に接続させる役割をすることを特徴とする請求項1に記載の集積回路基板。
- 表面に複数の第1導電性パッドを有する第1集積回路チップと、
前記第1集積回路チップ上に搭載され、表面に複数の第2導電性パッドを有する第2集積回路チップと、
前記第1及び第2集積回路チップが搭載される印刷回路基板とを有し、
前記印刷回路基板は、前記複数の第1導電性パッドに対応して互いに異なる第1及び第2高さを有して交互に配列される複数の第1及び第2導電性ボンドフィンガと、
前記複数の第2導電性パッドに対応して互いに異なる第3及び第4高さを有して交互に配列される複数の第3及び第4導電性ボンドフィンガと、
前記第1導電性ボンドフィンガを前記第2導電性ボンドフィンガと比べて相対的に高い高さを有するように支持する複数の第1絶縁支持体と、
前記第3導電性ボンドフィンガを前記第4導電性ボンドフィンガと比べて相対的に高い高さを有するように支持する複数の第2絶縁支持体とを含み、
さらに、前記複数の第1導電性パッドと、対応する前記第1導電性ボンドフィンガとを各々電気的に接続する複数の第1電気接続体と、
前記複数の第1導電性パッドと、対応する前記第2導電性ボンドフィンガとを各々電気的に接続する複数の第2電気接続体と、
前記複数の第2導電性パッドと、対応する前記第3導電性ボンドフィンガとを各々電気的に接続する複数の第3電気接続体と、
前記複数の第2導電性パッドと、対応する前記第4導電性ボンドフィンガとを各々電気的に接続する複数の第4電気接続体とを含むことを特徴とするマルチチップ集積回路素子パッケージ。 - 前記印刷回路基板は、その第1表面上に提供される複数の基板パッドと、
前記印刷回路基板を貫通して前記第1、第2、第3、及び第4導電性ボンドフィンガの内の1つと前記複数の基板パッドの内の対応する1つとを電気的に接続する導電性ビアとを含むことを特徴とする請求項8に記載のマルチチップ集積回路素子パッケージ。 - 表面に複数の導電性パッドを有する第1集積回路チップと、
前記第1集積回路チップが搭載される印刷回路基板とを有し、
前記印刷回路基板は、対向する両側に位置した一対の絶縁支持体により限定される第1ボンドフィンガと、前記一対の絶縁支持体上に提供される一対の第2ボンドフィンガとを含み、
さらに、3つの近接した導電性ワイヤを有し、
前記導電性ワイヤの第1端は前記第1及び第2ボンドフィンガと接触し、前記導電性ワイヤの第2端は前記第1集積回路チップの前記表面に提供された3つの近接パッドと接触することを特徴とする集積回路基板。 - 前記印刷回路基板上に提供される複数のソルダーボールをさらに有し、
前記複数のソルダーボールは、前記第1及び第2ボンドフィンガの各々と電気的に接続されることを特徴とする請求項10に記載の集積回路基板。 - 前記複数のソルダーボールは、前記印刷回路基板と接触して前記第2ボンドフィンガと平らな境界面をなすことを特徴とする請求項11に記載の集積回路基板。
- 前記第1ボンドフィンガは、前記第2ボンドフィンガの内の少なくとも1つに対して異なる幅を有することを特徴とする請求項11に記載の集積回路基板。
- 前記第1集積回路チップに接合される複数の第2集積回路チップをさらに有することを特徴とする請求項11に記載の集積回路基板。
- 前記複数の第2集積回路チップのうちの1つに提供されたパッドと前記複数の導電性パッド中の対応する1つとを電気的に接続する貫通電極をさらに有することを特徴とする請求項14に記載の集積回路基板。
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JPH11186443A (ja) * | 1997-12-24 | 1999-07-09 | Matsushita Electric Ind Co Ltd | 多層配線基板 |
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JP2006278906A (ja) * | 2005-03-30 | 2006-10-12 | Oki Electric Ind Co Ltd | 半導体装置及びその製造方法 |
JP2008283024A (ja) * | 2007-05-11 | 2008-11-20 | Spansion Llc | 半導体装置及びその製造方法 |
Cited By (4)
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JP2013131713A (ja) * | 2011-12-22 | 2013-07-04 | Hitachi Automotive Systems Ltd | 制御装置に用いる電子回路装置 |
KR101923260B1 (ko) * | 2015-03-30 | 2018-11-28 | 타이완 세미콘덕터 매뉴팩쳐링 컴퍼니 리미티드 | 집적 회로 구조체 및 그 제조 방법 |
US10368442B2 (en) | 2015-03-30 | 2019-07-30 | Taiwan Semiconductor Manufacturing Company, Ltd. | Integrated circuit structure and method of forming |
US11291116B2 (en) | 2015-03-30 | 2022-03-29 | Taiwan Semiconductor Manufacturing Company, Ltd. | Integrated circuit structure |
Also Published As
Publication number | Publication date |
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CN101740530A (zh) | 2010-06-16 |
KR20100059061A (ko) | 2010-06-04 |
US8049325B2 (en) | 2011-11-01 |
KR101544508B1 (ko) | 2015-08-17 |
US20100127381A1 (en) | 2010-05-27 |
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