JP4031005B2 - 半導体装置の製造方法 - Google Patents
半導体装置の製造方法 Download PDFInfo
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- JP4031005B2 JP4031005B2 JP2005124039A JP2005124039A JP4031005B2 JP 4031005 B2 JP4031005 B2 JP 4031005B2 JP 2005124039 A JP2005124039 A JP 2005124039A JP 2005124039 A JP2005124039 A JP 2005124039A JP 4031005 B2 JP4031005 B2 JP 4031005B2
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- H01L2224/92—Specific sequence of method steps
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- Lead Frames For Integrated Circuits (AREA)
Description
図1は、本実施の形態によるQFNの外観(表面側)を示す平面図、図2は、QFNの外観(裏面側)を示す平面図、図3は、QFNの内部構造(表面側)を示す平面図、図4は、QFNの内部構造(裏面側)を示す平面図、図5および図6は、QFNの断面図である。
前記実施の形態1では、小タブ構造のリードフレームLF1を使って製造したQFNについて説明したが、例えば図25および図26に示すように、リード5の一端部側5aに絶縁フィルムからなるチップ支持体34を貼り付けたリードフレームLF2を使用して製造することも可能である。
図30は、本実施の形態のQFNの外観(表面側)を示す平面図、図31は、QFNの外観(裏面側)を示す平面図、図32は、QFNの内部構造(表面側)を示す平面図、図33は、QFNの内部構造(裏面側)を示す平面図、図34〜図36は、QFNの断面図である。
2 半導体チップ
3 封止体
4 ダイパッド部
5 リード
5a リードの一端部側
5b 吊りリード
5c リードの他端部側
5d 外部接続端子
5e 位置合わせ用リード
6 Auワイヤ
7 ボンディングパッド
8 切り欠き部
9 半田層
10 金属板
11 フォトレジスト膜
15 認識マーク
20 配線基板
30B 治具
31 溝
32 突起
33 リード
34 チップ支持体
40 モールド金型
40A 上型
40B 下型
41 樹脂シート
42 エアベント
50 プレス金型
50A 上型
50B 下型
51 パンチ
52 ダイ
53 突起
d 端子の径
G1〜G16 ゲート
C1〜C24 キャビティ
DC1〜DC8 ダミーキャビティ
LF1〜LF3 リードフレーム
P1 端子間ピッチ(同一列)
P2 端子間ピッチ(異なる列)
P3 リード一端部側先端ピッチ
Claims (2)
- 半導体チップと、前記半導体チップが搭載されたダイパッド部と、前記ダイパッド部を支持する吊りリードと、前記半導体チップの周囲に配置された複数のリードと、前記半導体チップと前記リードを電気的に接続する複数のワイヤと、前記半導体チップ、前記ダイパッド部、前記複数のリードおよび前記複数のワイヤを封止する封止体とを有する半導体装置の製造方法であって、
(a)金属板をプレス成形することによって、前記ダイパッド部と前記吊りリードと前記複数のリードとを含むパターンを繰り返し形成したリードフレームを用意する工程と、
(b)前記リードフレームに形成された前記複数のリードのそれぞれの一部を、前記リードフレームの一面に対して垂直な方向に折り曲げることによって、外部接続端子を形成する工程と、
(c)前記吊りリードの一部を、前記外部接続端子の突出方向とは逆の方向に折り曲げる工程と、
(d)前記吊りリードの折り曲げ部分に、前記外部接続端子を配線基板に位置合わせするための認識マークを形成する工程と、
(e)前記リードフレームに形成された前記複数のダイパッド部のそれぞれに前記半導体チップを搭載し、前記半導体チップと前記リードの一部を前記ワイヤにより結線する工程と、
(f)上型と下型とを有する金型を用意し、前記下型の表面を樹脂シートで被覆した後、前記樹脂シート上に前記リードフレームを載置し、前記リードの一面に形成された前記外部接続端子と前記樹脂シートを接触させる工程と、
(g)前記樹脂シートおよび前記リードフレームを前記上型と前記下型とで挟み付け、前記外部接続端子の先端部分を前記樹脂シート内に食い込ませる工程と、
(h)前記上型と前記下型との隙間に樹脂を注入することによって、前記半導体チップ、前記ダイパッド部、前記吊りリード、前記リードおよび前記ワイヤを封止すると共に、前記外部接続端子が裏面から外部に突出し、前記吊りリードの折り曲げ部が上面に露出する複数の封止体を形成する工程と、
(i)前記複数の封止体が形成された前記リードフレームを前記金型から取り出した後、前記リードフレームを切断することによって、前記複数の封止体を個片化する工程を含むことを特徴とする半導体装置の製造方法。 - 前記(b)工程、前記(c)工程および前記(d)工程を同時に行うことを特徴とする請求項1記載の半導体装置の製造方法。
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JP2005124039A JP4031005B2 (ja) | 2005-04-21 | 2005-04-21 | 半導体装置の製造方法 |
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JP2005124039A JP4031005B2 (ja) | 2005-04-21 | 2005-04-21 | 半導体装置の製造方法 |
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JP2002134952A Division JP4095827B2 (ja) | 2002-05-10 | 2002-05-10 | 半導体装置 |
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JP2005217451A JP2005217451A (ja) | 2005-08-11 |
JP4031005B2 true JP4031005B2 (ja) | 2008-01-09 |
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JP2007221033A (ja) * | 2006-02-20 | 2007-08-30 | Nec Electronics Corp | 半導体装置およびその製造方法 |
JP4143666B2 (ja) * | 2006-12-08 | 2008-09-03 | シャープ株式会社 | Icチップ実装パッケージ、及びこれを備えた画像表示装置 |
CN102290358A (zh) * | 2011-08-26 | 2011-12-21 | 上海凯虹电子有限公司 | 四方扁平无引脚封装体及其制造方法 |
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