JP2006100636A - 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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- JP2006100636A JP2006100636A JP2004285839A JP2004285839A JP2006100636A JP 2006100636 A JP2006100636 A JP 2006100636A JP 2004285839 A JP2004285839 A JP 2004285839A JP 2004285839 A JP2004285839 A JP 2004285839A JP 2006100636 A JP2006100636 A JP 2006100636A
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Abstract
【解決手段】 複数のパッド2aを有する半導体チップ2と、実装面1gとワイヤ接続面1hとを有しており、かつ肉厚部1eと肉厚部1eより厚さが薄い肉薄部1fとを備え、さらにそれぞれワイヤ接続面1hの長さが実装面1gより短く形成された複数のリード1aと、半導体チップ2とリード1aを接続する複数のワイヤ4と、樹脂によって形成された封止体3とからなり、各リード1aの肉薄部1fが、半導体チップ2の下部にもぐり込んで配置されており、かつリード1aと半導体チップ2とが逆ボンディングによってワイヤ4で接続されていることにより、各リード1aの実装面1gの長さを確保しつつ、半導体チップ2の側面2dから封止体3の側面3bまでの距離を可能な限り短くしてパッケージサイズをチップサイズに近づけてQFN5の小型化を図る。
【選択図】 図4
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斜視図、図2は図1に示す半導体装置の構造を示す断面図、図3は図1に示す半導体装置の短リードタイプの構造の一例を示す断面図、図4は図1に示す半導体装置の逆ボンディングタイプの構造の一例を示す断面図、図5は図1に示す半導体装置のリードの構造の一例を示す斜視図、図6および図7はそれぞれ図1に示す半導体装置の変形例のリードの構造を示す斜視図、図8は図1に示す半導体装置の逆台形のリードの構造の一例を示す斜視図、図9は図8に示すリードの構造を示す正面図、図10は図1に示す半導体装置の逆台形のリードの変形例の構造を示す斜視図、図11は図10に示すリードの構造を示す正面図、図12は図1に示す半導体装置の逆台形のリードの変形例の構造を示す斜視図、図13は図12に示すリードの構造を示す正面図、図14は本発明の実施の形態1の半導体装置の組み立てに用いられるリードフレームの構造の一例を示す平面図、図15は図14に示すリードフレームの構造を示す側面図、図16は本発明の実施の形態1の半導体装置の組み立てにおけるダイボンディング後の構造の一例を示す側面図、図17は本発明の実施の形態1の半導体装置の組み立てにおけるワイヤボンディング後の構造の一例を示す側面図、図18は本発明の実施の形態1の半導体装置の組み立てにおける樹脂モールディング時の構造の一例を示す部分断面図、図19は樹脂モールディング後の構造を示す斜視図、図20は本発明の実施の形態1の半導体装置の組み立てにおける個片化ダイシング時の構造の一例を示す斜視図、図21は図20に示す個片化ダイシング時の構造を示す断面図、図22は本発明の実施の形態1の半導体装置の組み立てにおける組み立て完了後の構造の一例を示す断面図、図28はワイヤボンディングにおける部分拡大断面図、図29はワイヤボンディング後の部分拡大断面図および部分拡大斜視図、図30は個片モールディングによる半導体装置の部分拡大断面図、図31は一括モールディングによる半導体装置の部分拡大断面図である。
図23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24は本発明の実施の形態2の半導体装置の組み立てにおける個片化切断時の構造の一例を示す断面図である。
1a リード
1b タブ(チップ搭載部)
1c 主面
1d 裏面
1e 肉厚部
1f 肉薄部
1g 実装面(第1主面)
1h ワイヤ接続面(第2主面)
1i 段差面(第3主面)
1j 凹凸
1k ディンプル(窪み部)
1m 傾斜面
1n 第1スリット
1p 第2スリット
1q 長スリット
1r ガイド孔
1s 位置決め孔
1t デバイス領域(装置形成領域)
1u 枠部
1v 切断しろ
2 半導体チップ
2a パッド(電極)
2b 主面
2c 裏面
2d 側面
3 封止体
3a 裏面
3b 側面
4 ワイヤ(導電性ワイヤ)
4a 根元部
4b ワイヤ端部
5 QFN(半導体装置)
6 ダイボンド材
7 金バンプ
8 封止用樹脂
9 樹脂成形金型
9a 上型
9b 下型
9c キャビティ
9d 金型面
10 一括封止体
11 ブレード
12 QFN(半導体装置)
13 切断金型
13a 上型
13b 下型
13c 切断刃
13d,13e 逃げ部
13f 支持部
14 フィルムシート
Claims (17)
- (a)実装面である第1主面と、前記第1主面の反対側に配置され、かつ第1部分と前記第1部分よりその厚さが薄い第2部分とを有する第2主面とを備え、さらにそれぞれ前記第2主面の延在方向の長さが前記第1主面より短く形成された複数のリードと、前記複数のリードの内側に配置されたチップ搭載部とを有するリードフレームを準備する工程と、
(b)半導体チップの裏面と前記リードの前記第2部分とが対向するように前記半導体チップを前記チップ搭載部に搭載する工程と、
(c)前記半導体チップの電極と前記リードの前記第1部分の第2主面とを導電性ワイヤで接続する工程と、
(d)封止体の裏面に前記複数のリードそれぞれの前記第1主面が露出するように前記半導体チップと前記導電性ワイヤを樹脂封止して前記封止体を形成する工程と、
(e)前記リードフレームから前記複数のリードそれぞれを分離して個片化する工程とを有し、
前記(c)工程において、先に前記リードの前記第1部分の第2主面と前記導電性ワイヤとを接続し、その後、前記導電性ワイヤと前記半導体チップの電極とを接続することを特徴とする半導体装置の製造方法。 - 請求項1記載の半導体装置の製造方法において、前記(d)工程で、前記リードフレーム上に区画形成された複数の装置形成領域を樹脂成形金型の1つのキャビティで覆って前記樹脂封止を行い、前記(e)工程で、ダイシングによって個片化を行うことを特徴とする半導体装置の製造方法。
- 請求項2記載の半導体装置の製造方法において、前記(d)工程で、前記リードフレーム上に区画形成された複数の装置形成領域を所望の区画数ごとに樹脂成形金型の複数のキャビティそれぞれで覆って前記樹脂封止することを特徴とする半導体装置の製造方法。
- 請求項1記載の半導体装置の製造方法において、前記リードの延在方向に対する直角な方向の幅は、前記第1主面より前記第2主面または前記第2部分の第3主面の方が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1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裏面に対向して配置される前記リードの前記第2部分の第3主面に、凹凸が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1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裏面に対向して配置される前記リードの前記第2部分の第3主面に、複数の窪み部が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1記載の半導体装置の製造方法において、前記チップ搭載部の裏面は、前記封止体の裏面に露出していることを特徴とする半導体装置の製造方法。
- 請求項1記載の半導体装置の製造方法において、前記チップ搭載部の裏面は、前記封止体で覆われていることを特徴とする半導体装置の製造方法。
- (a)実装面である第1主面と、前記第1主面の反対側に配置され、かつ第1部分と前記第1部分よりその厚さが薄い第2部分とを有する第2主面とを備え、さらにそれぞれ前記第2主面の延在方向の長さが前記第1主面より短く、かつ前記第1部分の延在方向の長さが前記第2部分よりも短く形成された複数のリードと、前記複数のリードの内側に配置されたチップ搭載部とを有するリードフレームを準備する工程と、
(b)半導体チップの裏面と前記リードの前記第2部分とが対向するように前記半導体チップを前記チップ搭載部に搭載する工程と、
(c)前記半導体チップの電極と前記リードの前記第1部分の第2主面とを導電性ワイヤで接続する工程と、
(d)前記リードフレーム上に区画形成された複数の装置形成領域を樹脂成形金型の1つのキャビティで覆った状態で、封止体の裏面に前記複数のリードそれぞれの前記第1主面が露出するように前記半導体チップと前記導電性ワイヤを樹脂封止して前記封止体を形成する工程と、
(e)前記リードフレームから前記複数のリードそれぞれをダイシングによって分離して個片化する工程とを有し、
前記(c)工程において、先に前記半導体チップの電極と前記導電性ワイヤとを接続し、その後、前記リードの前記第1部分の第2主面と前記導電性ワイヤとを接続す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、前記リードの延在方向に平行な方向の前記第2の主面の長さは、前記第1主面の長さの1/2以下であ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、前記半導体チップの側面から前記封止
体の側面までの距離は、0.35mm以下であ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(d)工程で、前記リードフレーム上に区画形成された複数の装置形成領域を所望の区画数ごとに樹脂成形金型の複数のキャビティそれぞれで覆って前記樹脂封止す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、前記リードの延在方向に対する直角な方向の幅は、前記第1主面より前記第2主面または前記第2部分の第3主面の方が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9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裏面に対向して配置される前記リードの前記第2部分の第3主面に、凹凸が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、前記半導体チップの裏面に対向して配置される前記リードの前記第2部分の第3主面に、複数の窪み部が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、前記チップ搭載部の裏面は、前記封止体の裏面に露出し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、前記チップ搭載部の裏面は、前記封止体で覆われていることを特徴とする半導体装置の製造方法。
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TW094128043A TWI431738B (zh) | 2004-09-30 | 2005-08-17 | 半導體裝置之製造方法 |
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JP2011077277A (ja) * | 2009-09-30 | 2011-04-14 | Sanyo Electric Co Ltd | 半導体装置 |
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KR101464605B1 (ko) * | 2012-12-07 | 2014-11-24 | 시그네틱스 주식회사 | 솔더 접합 능력을 향상하는 큐. 에프. 엔 반도체 패키지 및 그의 제조방법 |
JP2017085049A (ja) * | 2015-10-30 | 2017-05-18 | 新光電気工業株式会社 | 半導体装置及びその製造方法、リードフレーム及びその製造方法 |
CN106847782A (zh) * | 2015-10-30 | 2017-06-13 | 新光电气工业株式会社 | 半导体装置及其制造方法、引线框架及其制造方法 |
CN106847782B (zh) * | 2015-10-30 | 2021-05-18 | 新光电气工业株式会社 | 半导体装置及其制造方法、引线框架及其制造方法 |
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TWI431738B (zh) | 2014-03-21 |
TW200614474A (en) | 2006-05-01 |
US20060079028A1 (en) | 2006-04-13 |
US20080135992A1 (en) | 2008-06-12 |
JP4525277B2 (ja) | 2010-08-18 |
US7323366B2 (en) | 2008-01-29 |
CN100446201C (zh) | 2008-12-24 |
KR101160694B1 (ko) | 2012-06-28 |
US7728412B2 (en) | 2010-06-01 |
KR20060051340A (ko) | 2006-05-19 |
CN1755907A (zh) | 2006-04-05 |
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