JP2010103244A - 半導体装置及びその製造方法 - Google Patents
半導体装置及びその製造方法 Download PDFInfo
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- JP2010103244A JP2010103244A JP2008272247A JP2008272247A JP2010103244A JP 2010103244 A JP2010103244 A JP 2010103244A JP 2008272247 A JP2008272247 A JP 2008272247A JP 2008272247 A JP2008272247 A JP 2008272247A JP 2010103244 A JP2010103244 A JP 2010103244A
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Abstract
【解決手段】コアレス基板2と、コアレス基板2にフリップチップ実装された半導体チップ3と、半導体チップ3とTIM材17を介して接合されると共に封止樹脂層4とシールバンド材18を介して接合されたリッド5とを備え、リッド5の封止樹脂層4との接合面に複数のディンプル16aを形成する。
【選択図】図1
Description
具体的には、特許文献1では、熱膨張係数が基板の熱膨張係数と同一または略同一の値を有する部材(リッド)でパッケージングするという技術が提案されている。そして、こうした技術によって、基板に設けられた複数のパッドの各々と半導体チップに設けられた複数の入力端子の各々とを接合する接合部材に応力が生じることを抑制するというものである。
図15は従来の半導体装置を説明するための模式図であり、ここで示す半導体装置101は、配線基板102と、半導体チップ103と、半導体チップの上面に設けられたリッド104を備える。
図1は本発明を適用した半導体装置の一例を説明するための模式図である。ここで示す半導体装置1は、コアレス基板2と、表面をフェイスダウンした状態でコアレス基板2にフリップチップ実装されたLSI等の半導体チップ3と、半導体チップ3の周囲を封止する封止樹脂層4と、半導体チップ3上に配置されたリッド5を有する。
図3は本発明を適用した半導体装置の製造方法の一例の概略を示すフロー図であり、先ず、多層配線構造を有するコアレス基板を形成し(S10)、このコアレス基板の上に半導体チップを実装する(S20)。次に、半導体チップを封止樹脂で封止し(S30)、リッドを搭載する(S40)。その後、半田ボール、キャパシタ等をコアレス基板の裏面に実装する(S50)。
先ず、図4(a)及び図4(b)で示す様に、銅基板50の上に、レジスト膜52を塗布し、レーザー光の照射によりレジスト膜52を所定の開口を有する形状にパターニングする。次に、図4(c)で示す様に、レジスト膜52をマスクとして、ニッケル(Ni)、鉛(Pb)、金(Au)またはこれらの合金等からなる電極パッド15を電解めっき法により銅基板50の上に形成する。
先ず、図9(a)で示す様に、半導体チップ3の外部電極端子が設けられた表面をフェイスダウンにした状態で、各半田バンプ32とそれらに対応するC4バンプ22を半田付けすることにより、半導体チップ3をフリップチップ実装する。次に、図9(b)で示す様に、半導体チップ3とコアレス基板2との間にアンダーフィル材40を充填する。
先ず、本封止樹脂形成方法で用いられる上型200は、溶融した封止樹脂の流通路となるランナー202を備える。ランナー202は、上型200と下型210とが型合わせされたときに形成されるキャビティ220への開口部を有する。
ここで、上型200の成形面は、樹脂成型時に半導体チップ3の裏面と接するチップ接触面207と、チップ接触面207の周囲に位置し、封止樹脂層4を成型するための樹脂成型面206とを含む。なお、樹脂成型時にチップ接触面207が半導体チップ3の裏面と接することにより、樹脂成型時には封止樹脂が半導体チップ3の裏面に流れ込むことは無い。更に、上型200には、ポンプ等の吸引機構と連通する吸引穴204が設けられている。
一方、下型210は、プランジャー212が往復運動可能に形成されたポット214を有する。
先ず、半導体チップ3の裏面にTIM材17を塗布すると共に、封止樹脂層4の表面に接着材料(シールバンド材)18を塗布する。続いて、封止樹脂層4との接合面にティンプル16aが設けられたリッド5を半導体チップ3の裏面及び封止樹脂層4の表面に接合することによって、図1で示す様な半導体装置1を得ることができる。
2 コアレス基板
3 半導体チップ
4 封止樹脂層
5 リッド
6 半田ボール
7
9 キャパシタ
10 層間絶縁膜
10a 最下層の層間絶縁膜
11 配線層
11a 裏面の配線層
12 ビアプラグ
13 ソルダーレジスト層
14 電極パッド
15 電極パッド
16a ディンプル
16b 凹部
16c 貫通孔
17 TIM材
18 シールバンド材
21 有機表面保護コーティング材
22 C4バンプ
32 半田バンプ
40 アンダーフィル
50 銅基板
52 レジスト膜
62 ビアホール
70 シード層
72 レジスト膜
200 上型
202 ランナー
204 吸引穴
206 樹脂成型面
207 チップ接触面
212 プランジャー
214 ポット
220 キャビティ
230 リリースフィルム
240 樹脂タブレット
241 封止樹脂
Claims (5)
- 基板と、
該基板に表面をフェイスダウンした状態で実装された半導体チップと、
前記基板の半導体チップ搭載領域の周辺領域に設けられた補強材と、
前記半導体チップと高熱伝導性材料を介して接合されると共に前記補強材と接着材料を介して接合されることにより前記半導体チップ及び前記補強材上に配置され、前記補強材との接合面に凹凸部が設けられた放熱板とを備える
半導体装置。 - 前記放熱板の前記補強材との接合面に、同放熱板の周辺領域から中央領域に向けてその深さが深くなる有底の凹部が設けられた
請求項1に記載の半導体装置。 - 前記放熱板の前記補強材との接合面に、貫通孔が設けられた
請求項1に記載の半導体装置。 - 前記補強材の前記放熱板との接合面に凹凸部が設けられた
請求項1、請求項2または請求項3に記載の半導体装置。 - 配線パターンが設けられた基板に表面をフェイスダウンした半導体チップをフリップチップ実装する工程と、
フリップチップ実装された半導体チップの周辺領域に補強材を形成する工程と、
前記半導体チップの裏面に高熱伝導性材料を塗布すると共に前記補強材表面に接着材料を塗布した後に、半導体チップ及び補強材上に、前記補強材との接合面に凹凸部が設けられた放熱板を接合する工程とを備える
半導体装置の製造方法。
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JP2008272247A JP2010103244A (ja) | 2008-10-22 | 2008-10-22 | 半導体装置及びその製造方法 |
TW098133755A TWI415235B (zh) | 2008-10-22 | 2009-10-05 | Semiconductor device and manufacturing method thereof |
KR1020090097583A KR20100044703A (ko) | 2008-10-22 | 2009-10-14 | 반도체 장치 및 그 제조 방법 |
US12/588,524 US8334591B2 (en) | 2008-10-22 | 2009-10-19 | Semiconductor device and method of manufacturing the same |
CN2009102066271A CN101728340B (zh) | 2008-10-22 | 2009-10-22 | 半导体装置及其制造方法 |
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US (1) | US8334591B2 (ja) |
JP (1) | JP2010103244A (ja) |
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CN101728340A (zh) | 2010-06-09 |
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US20100096747A1 (en) | 2010-04-22 |
CN101728340B (zh) | 2012-06-27 |
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KR20100044703A (ko) | 2010-04-30 |
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