JP2006100752A - 回路装置およびその製造方法 - Google Patents
回路装置およびその製造方法 Download PDFInfo
- Publication number
- JP2006100752A JP2006100752A JP2004288213A JP2004288213A JP2006100752A JP 2006100752 A JP2006100752 A JP 2006100752A JP 2004288213 A JP2004288213 A JP 2004288213A JP 2004288213 A JP2004288213 A JP 2004288213A JP 2006100752 A JP2006100752 A JP 2006100752A
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- Prior art keywords
- sealing resin
- circuit board
- circuit
- circuit device
- thermal expansion
- Prior art date
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- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
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- H05K3/284—Applying non-metallic protective coatings for encapsulating mounted components
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S220/00—Receptacles
- Y10S220/912—Cookware, i.e. pots and pans
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Abstract
【解決手段】 混成集積回路装置10は、回路基板11の表面に設けられた導電パターン13と、導電パターン13に固着された回路素子14と、回路素子14と導電パターンとを電気的に接続する金属細線15と、導電パターン13と接続されて出力または入力となり外部に延在されるリード16と、回路基板11の少なくとも裏面を露出させてトランスファーモールドにより被覆する熱硬化性樹脂から成る封止樹脂14とを備える。ここで、封止樹脂14の熱膨張係数を回路基板11の熱膨張係数よりも小さく設定することで、アフターキュアの工程に於ける回路基板11の反りを防止できる。
【選択図】 図2
Description
図1を参照して、本発明の混成集積回路装置10の構成を説明する。先ず、矩形の回路基板11の表面には、絶縁層18が形成されている。そして、所定の形状の導電パターン13が、絶縁層18の表面に形成されている。更に、導電パターン13の所定の箇所には、半導体素子15Aおよびチップ素子15Bが電気的に接続されている。回路基板11の表面に形成された導電パターン13、半導体素子15Aおよびチップ素子15Bは、封止樹脂14により被覆されている。
図3から図6を参照して、混成集積回路装置の製造方法を説明する。
11 回路基板
12A 第1の酸化膜
12B 第2の酸化膜
13 導電パターン
14 封止樹脂
15 回路素子
15A 半導体素子
15B チップ素子
16 リード
17 金属細線
18 絶縁層
19 金属基板
20 導電箔
21 ユニット
22A 第1の溝
22B 第2の溝
23 カッター
24 支持部
27 ビス
25 ヒートシンク
28 放熱フィン
29 グリス
30 ビス
31 金型
32 ゲート
Claims (11)
- 回路基板の表面に設けられた導電パターンと、
前記導電パターンに電気的に接続された回路素子と、
少なくとも前記回路基板の表面を被覆して前記回路素子を封止する封止樹脂とを具備する回路装置に於いて、
前記封止樹脂の熱膨張係数を、フィラーが入った状態で、前記回路基板の熱膨張係数よりも小さくすることを特徴とする回路装置。 - 前記回路基板の裏面は、前記封止樹脂から露出することを特徴とする請求項1記載の回路装置。
- 前記封止樹脂は、トランスファーモールドにより形成されることを特徴とする請求項1記載の回路装置。
- 前記回路基板は、アルミニウムから成る基板であり、
前記封止樹脂の熱膨張係数は、フィラーが入った状態で15×10−6/℃から23×10−6/℃までの範囲であることを特徴とする請求項1記載の回路装置。 - 前記回路素子は、鉛フリー半田を介して前記導電パターンに固着されることを特徴とする請求項1記載の回路装置。
- 導電パターンおよび回路素子から成る電気回路を回路基板の表面に形成する工程と、
前記回路素子が被覆されるように少なくとも前記回路基板の表面をフィラー入り封止樹脂で被覆する工程とを具備し、
前記回路基板よりも熱膨張係数の小さい前記封止樹脂を用いることを特徴とする回路装置の製造方法。 - 導電パターンおよび回路素子から成る電気回路を回路基板の表面に形成する工程と、
前記回路素子が被覆されるように少なくとも前記回路基板の表面をフィラー入り封止樹脂で被覆する工程と、
前記封止樹脂を加熱することにより、前記回路基板が裏面の方向に湾曲した状態で、前記封止樹脂を硬化させる工程と、
前記回路基板の湾曲を低減させた状態で、前記封止樹脂または前記回路基板の裏面を、放熱体の表面に当接させる工程とを具備することを特徴とする回路装置の製造方法。 - 前記封止樹脂は、トランスファーモールドにより形成される熱硬化性樹脂であることを特徴とする請求項6または請求項7記載の回路装置の製造方法。
- 前記封止樹脂の熱膨張係数を、前記回路基板よりも小さくすることを特徴とする請求項6または請求項7記載の回路装置の製造方法。
- 前記回路基板はアルミニウムから成り、
前記封止樹脂の熱膨張係数を、15×10−6/℃から23×10−6/℃の範囲にすることを特徴とする請求項6または請求項7記載の回路装置の製造方法。 - 銅を主材料とする導電パターンが形成されたアルミニウムまたは銅の基板を用意し、
前記基板に回路素子を実装し、
前記基板の少なくとも表面を実質カバーするように、樹脂をトランスファーモールドして製造する回路装置の製造方法であり、
前記モールド時の前記樹脂の硬化収縮が抑制され、硬化した後の基板裏面が若干下に凸に成るように、フィラーが混入された樹脂の熱膨張係数が15×10−6/℃から23×10−6/℃の範囲で選択することを特徴とした回路装置の製造方法。
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JP2004288213A JP2006100752A (ja) | 2004-09-30 | 2004-09-30 | 回路装置およびその製造方法 |
TW94102426A TWI271130B (en) | 2004-09-30 | 2005-01-27 | Circuit device and method of producing the same |
KR20050013995A KR100726902B1 (ko) | 2004-09-30 | 2005-02-21 | 회로 장치 및 그 제조 방법 |
CNB2005100525405A CN100397627C (zh) | 2004-09-30 | 2005-02-28 | 电路装置及其制造方法 |
US11/237,856 US20060065421A1 (en) | 2004-09-30 | 2005-09-29 | Circuit device and manufacturing method thereof |
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JP (1) | JP2006100752A (ja) |
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TW (1) | TWI271130B (ja) |
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CN1755919A (zh) | 2006-04-05 |
US20060065421A1 (en) | 2006-03-30 |
KR100726902B1 (ko) | 2007-06-11 |
TWI271130B (en) | 2007-01-11 |
TW200611614A (en) | 2006-04-01 |
KR20060043018A (ko) | 2006-05-15 |
CN100397627C (zh) | 2008-06-25 |
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