JP2012146799A - 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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- JP2012146799A JP2012146799A JP2011003560A JP2011003560A JP2012146799A JP 2012146799 A JP2012146799 A JP 2012146799A JP 2011003560 A JP2011003560 A JP 2011003560A JP 2011003560 A JP2011003560 A JP 2011003560A JP 2012146799 A JP2012146799 A JP 2012146799A
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Abstract
【解決手段】上金型14と下金型15で一対を成す樹脂成形金型13の上金型14において、キャビティ14aの注入ゲート14dに対向する第2隅部14fの内周面14bの断面の半径を、他の隅部の内周面14bの断面の半径より大きくすることで、樹脂注入時に樹脂中に含まれるボイド12をキャビティ14aの第2隅部14fに滞留させることなくエアベント14hに押し出すことができ、これにより、キャビティ内でのボイド12の発生を抑制して半導体装置の外観不良の発生を抑制できる。
【選択図】図19
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示す平面図、図2は図1に示す半導体装置の構造の一例を示す裏面図、図3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4は図1のRB部の構造の一例を拡大して示す部分拡大断面図、図5は図1のRA部の構造の一例を拡大して示す部分拡大断面図、図6は図1のRC部の構造の一例を拡大して示す部分拡大断面図である。
図22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平面図、図23は図22に示す半導体装置の構造の一例を示す裏面図、図24は図22のA−A線に沿って切断した構造の一例を示す断面図、図25は図22の半導体装置の組み立て手順の一例を示すプロセスフロー図である。
1a 主面
1b 裏面
1c 電極パッド
2 配線基板(板状部材)
2a 上面
2b 下面
2c ボンディングリード(リード)
2d ランド端子
3 封止用樹脂
4 封止体
4a 上面
4b 第1側面
4c 第2側面
4d 第3側面
4e 第1稜部
4f 第2稜部
4g 第3稜部
4h 角部
4i ゲートレジン
4j エアベントレジン
4k 第4側面
5 半田ボール
6 ダイボンド材
7 ワイヤ(導電性ワイヤ)
8 半導体ウエハ
8a ダイシングライン
9 BGA(半導体装置)
10 多数個取り基板(板状部材)
10a 上面
10b 下面
10c デバイス領域
11 マーク
12 ボイド
13 樹脂成形金型
14 上金型(第1金型)
14a キャビティ
14b 内周面
14c 合わせ面
14d 注入ゲート
14e 第1隅部
14f 第2隅部
14g 第3隅部
14h エアベント
14i エアベント
14j エアベント
14k カル
14m ランナ
15 下金型(第2金型)
15a 基板搭載部
15b 合わせ面
15c ポット
15d プランジャヘッド
15e プランジャロッド
15f キャビティ
16 LGA(半導体装置)
20 QFP(半導体装置)
21 リードフレーム(板状部材)
21a ダイパッド
21b インナリード(リード)
21c アウタリード
21d リード部(リード)
22 樹脂成形金型
23 QFN(半導体装置)
30 上金型
31 下金型
32 注入ゲート
33 キャビティ
33a 隅部
34 モールドレジン
35 エアベント
36 ボイド
37 ランナ
Claims (16)
- 上面と、エアベントレジンが形成され、前記上面と連なる第1側面と、を備えた封止体を有する半導体装置の製造方法であって、
(a)一対を成す第1金型と第2金型の少なくとも何れか一方に前記封止体の形に対応したキャビティが形成され、かつ前記キャビティに連通する注入ゲート及びエアベントを備えた樹脂成形金型を準備する工程と、
(b)半導体チップが搭載された板状部材を前記第1金型と前記第2金型の間に配置し、前記半導体チップを前記キャビティで覆った状態で前記第1金型と前記第2金型をクランプする工程と、
(c)前記注入ゲートから前記キャビティ内に封止用樹脂を注入して前記板状部材上に前記封止体を形成する工程と、
を有し、
前記樹脂成形金型の前記キャビティは、前記注入ゲートから最も離れた位置の前記エアベントに対応した前記第1側面と前記上面とから成る前記封止体の稜部を形成する隅部を備え、前記キャビティの前記隅部の内周面の断面の半径は、前記封止体の他の稜部を形成する前記キャビティの他の隅部の内周面の断面の半径より大きいことを特徴とする半導体装置の製造方法。 - 請求項1に記載の半導体装置の製造方法において、
前記封止体は、前記第1側面に連なる第2側面と、及び前記上面に連なり、かつ前記第1側面に対向する第3側面と、をさらに備え、前記第3側面は、前記注入ゲート上に形成されることを特徴とする半導体装置の製造方法。 - 請求項2に記載の半導体装置の製造方法において、
前記第1側面と前記第3側面は、前記封止体の平面視における角部に配置されることを特徴とする半導体装置の製造方法。 - 請求項3に記載の半導体装置の製造方法において、
前記(b)工程の前に、前記半導体チップの電極パッドと前記板状部材のリードとを導電性ワイヤによって電気的に接続する工程を有し、前記導電性ワイヤの線径はφ20μm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4に記載の半導体装置の製造方法において、
前記封止用樹脂は、その特性を表すスパイラルフローが100cm以上であることを特徴とする半導体装置の製造方法。 - 請求項1に記載の半導体装置の製造方法において、
前記封止体の前記第1側面と前記上面とから成る前記稜部を形成する前記キャビティの前記隅部の前記内周面の断面の半径は、0.5mm以上であることを特徴とする半導体装置の製造方法。 - 請求項3に記載の半導体装置の製造方法において、
前記半導体装置は、QFP、QFN、BGAまたはLGAであることを特徴とする半導体装置の製造方法。 - 上面と、エアベントレジンが形成され、前記上面と連なる第1側面と、前記上面と前記第1側面とに連なる第2側面と、を備えた封止体を有する半導体装置の製造方法であって、
(a)一対を成す第1金型と第2金型の少なくとも何れか一方に前記封止体の形に対応したキャビティが形成され、かつ前記キャビティに連通する注入ゲート及びエアベントを備えた樹脂成形金型を準備する工程と、
(b)半導体チップが搭載された板状部材を前記第1金型と前記第2金型の間に配置し、前記半導体チップを前記キャビティで覆った状態で前記第1金型と前記第2金型をクランプする工程と、
(c)前記注入ゲートから前記キャビティ内に封止用樹脂を注入して前記板状部材上に前記封止体を形成する工程と、
を有し、
前記樹脂成形金型の前記キャビティは、前記注入ゲートから最も離れた位置の前記エアベントに対応した前記第1側面と前記第2側面とから成る前記封止体の第1稜部を形成する第1隅部と、前記第1側面と前記上面とから成る前記封止体の第2稜部を形成する第2隅部とを備え、前記第2隅部の内周面の断面の半径は、前記第1隅部の内周面の断面の半径より大きいことを特徴とする半導体装置の製造方法。 - 請求項8に記載の半導体装置の製造方法において、
前記封止体の前記上面と前記第2側面とから成る第3稜部を形成する前記キャビティの第3隅部の内周面の断面の半径は、前記第1隅部の前記内周面の断面の半径より大きいことを特徴とする半導体装置の製造方法。 - 請求項9に記載の半導体装置の製造方法において、
前記キャビティの前記第2隅部の前記内周面の断面の半径と、前記第3隅部の前記内周面の断面の半径は、同じ大きさであることを特徴とする半導体装置の製造方法。 - 請求項8に記載の半導体装置の製造方法において、
前記封止体は、前記第1側面に対向する第3側面を備え、前記注入ゲート上に前記第3側面が形成されることを特徴とする半導体装置の製造方法。 - 請求項11に記載の半導体装置の製造方法において、
前記第1側面と前記第3側面は、前記封止体の平面視における角部に配置されることを特徴とする半導体装置の製造方法。 - 請求項12に記載の半導体装置の製造方法において、
前記半導体装置は、QFP、QFN、BGAまたはLGAであることを特徴とする半導体装置の製造方法。 - 請求項8に記載の半導体装置の製造方法において、
前記(b)工程の前に、前記半導体チップの電極パッドと前記板状部材のリードとを導電性ワイヤによって電気的に接続する工程を有し、前記導電性ワイヤの線径はφ20μm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8に記載の半導体装置の製造方法において、
前記封止用樹脂は、その特性を表すスパイラルフローが100cm以上であることを特徴とする半導体装置の製造方法。 - 請求項8に記載の半導体装置の製造方法において、
前記キャビティの前記第2隅部の前記内周面の断面の半径は、0.5mm以上であることを特徴とする半導体装置の製造方法。
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JPH10270602A (ja) * | 1997-03-27 | 1998-10-09 | Fujitsu Ten Ltd | 電子回路装置、該電子回路装置の封止層の形成方法、回路基板、及び前記封止層の形成に使用する金型 |
JP2002076038A (ja) * | 2000-08-24 | 2002-03-15 | Mitsui High Tec Inc | モールド金型 |
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JP2021000838A (ja) * | 2016-12-26 | 2021-01-07 | アピックヤマダ株式会社 | 成形金型、樹脂成形装置 |
WO2021070677A1 (ja) * | 2019-10-07 | 2021-04-15 | 三菱電機株式会社 | 半導体製造装置およびそれを用いた半導体装置の製造方法ならびに半導体装置 |
JPWO2021070677A1 (ja) * | 2019-10-07 | 2021-04-15 | ||
JP7269362B2 (ja) | 2019-10-07 | 2023-05-08 | 三菱電機株式会社 | 半導体製造装置およびそれを用いた半導体装置の製造方法ならびに半導体装置 |
JP7504258B2 (ja) | 2019-10-07 | 2024-06-21 | 三菱電機株式会社 | 半導体製造装置およびそれを用いた半導体装置の製造方法ならびに半導体装置 |
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TW201611138A (zh) | 2016-03-16 |
US20130109138A1 (en) | 2013-05-02 |
US20120178220A1 (en) | 2012-07-12 |
US8597989B2 (en) | 2013-12-03 |
KR101833068B1 (ko) | 2018-02-27 |
CN105374695A (zh) | 2016-03-02 |
CN102593015A (zh) | 2012-07-18 |
CN102593015B (zh) | 2016-01-20 |
TWI520234B (zh) | 2016-02-01 |
KR20120081951A (ko) | 2012-07-20 |
TW201230212A (en) | 2012-07-16 |
JP5562874B2 (ja) | 2014-07-30 |
US8349661B2 (en) | 2013-01-08 |
TWI567836B (zh) | 2017-01-21 |
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