JP5378707B2 - 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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- JP5378707B2 JP5378707B2 JP2008141285A JP2008141285A JP5378707B2 JP 5378707 B2 JP5378707 B2 JP 5378707B2 JP 2008141285 A JP2008141285 A JP 2008141285A JP 2008141285 A JP2008141285 A JP 2008141285A JP 5378707 B2 JP5378707 B2 JP 5378707B2
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Description
図1は本発明の実施の形態1の半導体装置の構造の一例を封止体を透過して示す平面図、図2は図1のA−A線に沿って切断した構造の一例を示す断面図、図3は図2に示すA部の構造の一例を拡大して示す部分拡大断面図である。また、図4は図1に示す半導体装置に組み込まれる基板の構造の一例を示す平面図、図5は図4に示すA部の構造の一例を拡大して示す部分拡大平面図、図6は図4に示す基板の構造の一例を示す部分断面図、図7は図6に示すA部の構造の一例を拡大して示す部分拡大断面図である。
角部との距離は、第1開口部7hが有する第1角部7vとこれに隣接するマイコンチップ1の角部との距離よりも短い。
半田膜の表面を清浄化することで、Auバンプに対する半田の濡れ上がりを安定化させることができる。また、基板表面を清浄化することで、アンダーフィル4の浸透性向上、並びに硬化後の基板との密着性を確保できる。
図19は本発明の実施の形態2の半導体装置の構造の一例を示す断面図、図20は図19に示す半導体装置の組み立て手順の一例を示すフロー図、図21は図20に示す組み立て手順における主要工程の一例を示すプロセスフロー図である。
1a 主面
1b 裏面
1c パッド
2 第1メモリチップ
2a 主面
2b 裏面
2c パッド
3 第2メモリチップ
3a 主面
3b 裏面
3c パッド
4 アンダーフィル
5 金バンプ(突起電極)
6 フィルム状接着材
7 配線基板(基板)
7a 表面
7b 裏面
7c ボンディングリード
7d ワイヤ接続用端子
7e 引き出し線
7f ソルダレジスト膜(絶縁膜)
7g 開口部
7h 第1開口部
7i 第2開口部
7j 第3開口部
7k 第4開口部
7m 層間接続配線(スルーホール)
7n ダミーリード
7p 第1端部
7q 第2端部
7r 半田層
7s ターゲットマーク
7t ワイヤ接続用端子
7u 搭載部
7v 第1角部
7w 第2角部
7A 第1辺
7B 第2辺
7C 第3辺
7D 第4辺
8 SIP(半導体装置)
9 ワイヤ
10 封止体
11 半田ボール(外部端子)
12 ノズル
13 軌跡
14 SIP(半導体装置)
15 POP(半導体装置)
16 第1パッケージ
17 マルチチップパッケージ
18 パッケージ基板
18a 表面
18b 裏面
19 MCPボール電極
Claims (10)
- 複数のボンディングリードを有し、表面に絶縁膜が形成され、前記絶縁膜の開口部に前記複数のボンディングリードが露出する基板と、
平面形状が四角形からなり、複数のパッドが形成された主面、及び前記主面と反対側に位置する裏面を有し、前記主面が前記基板の前記表面と対向するように、前記パッド上に形成された突起電極を介して前記基板の前記表面上に搭載された半導体チップと、
前記基板と前記半導体チップとの間に充填されたアンダーフィルと、
前記基板の裏面には、外部と接続するための複数の外部端子と、
を含み、
前記基板の前記絶縁膜の開口部は、前記半導体チップの外周形状に沿って形成され、かつ前記半導体チップの第1の角部に対応した第1開口部と、平面視において前記半導体チップの中心部を介して前記第1開口部に対向する第2開口部を有し、
前記開口部の外側には、前記外部端子と接続される複数のスルーホールが配置され、
前記ボンディングリードは、前記スルーホールから前記開口部の中に引き出された引き出し線と前記突起電極が搭載される搭載部により構成され、
前記基板の辺がある外側方向から前記開口部の中に引き出されたボンディングリードと、前記半導体チップの中心方向から前記開口部の中に引き出されたボンディングリードとは、前記開口部において交互に配置され、
前記基板の前記絶縁膜の前記開口部は、平面形状が4つの角部を有する多角形状から成り、
前記4つの角部のうちの前記第1開口部は第1角部を有し、
前記第2開口部は第2角部を有し、
平面視において、前記第2角部と、前記第2角部と隣接する前記半導体チップの第2の角部との距離は、前記第1角部と、前記第1角部と隣接する前記半導体チップの前記第1の角部との距離よりも短く、
前記開口部は、第1辺と第2辺を有し、
前記第2角部は、平面視において前記第1辺とチップ外周との間に位置し、かつ前記第1辺とつながる第3辺と、平面視において前記第2辺とチップ外周との間に位置し、かつ前記第2辺とつながる第4辺との交差する点であり、
前記アンダーフィルは、前記第1開口部より滴下されたことを特徴とする半導体装置。 - 請求項1記載の半導体装置において、前記基板の前記半導体チップの一辺に対応するボンディングリード列の両端に前記スルーホールとは接続されていないダミーリードが設けられていることを特徴とする半導体装置。
- 請求項1記載の半導体装置において、前記基板の前記絶縁膜の開口部に認識用のターゲットマークが複数個形成されていることを特徴とする半導体装置。
- (a)複数のボンディングリードを有し、表面に絶縁膜が形成され、前記絶縁膜の開口部に前記複数のボンディングリードが露出した基板を準備する工程と、
(b)平面形状が四角形からなり、複数のパッドが形成された主面、及び前記主面と反対側に位置する裏面を有する半導体チップを前記主面が前記基板の前記表面と対向するように、前記パッド上に形成された突起電極を前記基板の前記ボンディングリードの上に搭載する工程と、
(c)前記基板と前記半導体チップとの間にアンダーフィルを充填する工程と、
(d)前記基板の裏面に外部と接続するための複数の外部端子を設ける工程と、
を含み、
前記基板の前記絶縁膜の開口部は、前記半導体チップの外周形状に沿って形成され、かつ前記半導体チップの第1の角部に対応した第1開口部と、平面視において前記半導体チップの中心部を介して前記第1開口部に対向する第2開口部を有し、
前記開口部の外側には、前記外部端子と接続される複数のスルーホールが配置され、
前記ボンディングリードは、前記スルーホールから前記開口部の中に引き出された引き出し線と前記突起電極が搭載される搭載部により構成され、
前記基板の辺がある外側方向から前記開口部の中に引き出されたボンディングリードと、前記半導体チップの中心方向から前記開口部の中に引き出されたボンディングリードとは、前記開口部において交互に配置され、
前記基板の前記絶縁膜の前記開口部は、平面形状が4つの角部を有する多角形状から成り、
前記4つの角部のうちの前記第1開口部は第1角部を有し、
前記第2開口部は第2角部を有し、
平面視において、前記第2角部と、前記第2角部と隣接する前記半導体チップの第2の角部との距離は、前記第1角部と、前記第1角部と隣接する前記半導体チップの前記第1の角部との距離よりも短く、
前記開口部は、第1辺と第2辺を有し、
前記第2角部は、平面視において前記第1辺とチップ外周との間に位置し、かつ前記第1辺とつながる第3辺と、平面視において前記第2辺とチップ外周との間に位置し、かつ前記第2辺とつながる第4辺との交差する点であり、
前記(c)工程では、前記第1開口部より前記アンダーフィルを滴下して前記基板と前記半導体チップとの間に前記アンダーフィルを充填することを特徴とする半導体装置の製造方法。 - 請求項4記載の半導体装置の製造方法において、前記(c)工程では、前記第1開口部から前記半導体チップの辺に沿ってノズルを移動させながら前記アンダーフィルを滴下し、前記半導体チップの同一の辺の角部に到達する前に前記アンダーフィルの滴下を停止することを特徴とする半導体装置の製造方法。
- 請求項4記載の半導体装置の製造方法において、前記半導体チップの外周形状に沿って形成された前記絶縁膜の前記開口部において、前記第1開口部は、他のいずれの箇所よりも広く形成されていることを特徴とする半導体装置の製造方法。
- 請求項4記載の半導体装置の製造方法において、前記基板の前記半導体チップの一辺に対応するボンディングリード列の両端に前記スルーホールとは接続されていないダミーリードが設けられていることを特徴とする半導体装置の製造方法。
- 請求項4記載の半導体装置の製造方法において、前記基板の前記絶縁膜の開口部に認識用のターゲットマークが複数個形成されていることを特徴とする半導体装置の製造方法。
- 請求項4記載の半導体装置の製造方法において、前記基板の前記絶縁膜の開口部の外側に認識用のターゲットマークが複数個形成されていることを特徴とする半導体装置の製造方法。
- 請求項9記載の半導体装置の製造方法において、前記開口部の前記第1角部と前記第1角部と隣接する前記半導体チップの前記第1の角部との距離は、前記開口部の他の3つの角部と前記他の3つの角部とそれぞれ隣接する前記半導体チップの他の3つの角部との距離よりも大きいことを特徴とする半導体装置の製造方法。
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US20110300672A1 (en) | 2011-12-08 |
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