JP5211493B2 - 配線基板及び半導体装置 - Google Patents
配線基板及び半導体装置 Download PDFInfo
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- JP5211493B2 JP5211493B2 JP2007020081A JP2007020081A JP5211493B2 JP 5211493 B2 JP5211493 B2 JP 5211493B2 JP 2007020081 A JP2007020081 A JP 2007020081A JP 2007020081 A JP2007020081 A JP 2007020081A JP 5211493 B2 JP5211493 B2 JP 5211493B2
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- semiconductor element
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Description
従って、半導体装置10の外形野の小形化に対応すべく、ダム6の内壁側を半導体素子4により近くに位置せしめると、フィレットAの広がりが小となり、配線基板1と半導体素子4との接続信頼性を確保できない恐れがある。
本発明の第1の実施の形態に係る配線基板の構造を図5に示す。図5(b)は図5(a)の線X−Xに於ける断面を示し、図5(c)は図5(a)に於いて点線Aで囲んだ部分を拡大して示す。尚、図5(a)に於いて、点線Bで囲んだ矩形領域は、半導体素子の実装・搭載領域を示す。
尚、当該配線基板50のボンディング電極52の表面には、予め半田等の再溶融性の導電材69が被覆されている。
しかる後、配線基板50の他方の主面(裏面)に、球状電極端子68(図6(b)参照)を構成する半田ボールを複数個配設し、図6(b)に示す半導体装置80が形成される。
本発明の第2の実施の形態に係る、配線基板の構造を図13に示す。図13(b)は、図13(a)の線X−Xに於ける断面を示し、また図13(a)に於いて、点線Bで囲んだ部分は、当該配線基板に於ける半導体素子の実装領域を示す。
次いで、前記ボンディングツール130を降下せしめ、半導体素子65のバンプ67を配線基板150のボンディング電極153に押し付け、接触させる。
尚、このとき、かかる荷重の印加・加熱法の他、半導体素子65に超音波を付与する方法、或いは加熱せずに荷重の印加と超音波を付与する方法により、配線基板150上に、アンダーフィル材70を介して半導体素子65を固着してもよい。
本発明の第3の実施の形態に係る配線基板の構造を図16に示す。図16(b)は、図16(a)の線X−Xに於ける断面を示す。また、図16(a)に於いて、点線B1により囲む部分、及び点線B2により囲む部分は、それぞれ当該配線基板に於ける半導体素子の実装領域を示す。
次いで、当該配線基板250の外部接続用端子254に、クリーム状の半田280をマスク印刷法等により選択的に配設する。(図18(b)参照)
次いで、フリップチップボンダを用いて、半導体素子265の半田バンプ270と配線基板250の半田バンプ用電極252とが対向するように半導体素子265と配線基板250とを位置合わせした後、半導体素子265を配線基板250上に載置する。
尚、前記半導体素子265の電極パッド(図示を省略)上に形成された半田バンプ270の先端には、予めフラックスが転写法等により付着されている。当該フラックスの粘性により半導体素子265の載置位置が保持される。また、受動素子部品275は、クリーム状の半田280の粘性により載置位置が保持される。
この時、前記ダム256Aにより、当該アンダーフィル70の流動は制限され、受動素子部品275が接続された外部接続用端子254への到達は阻止される。
(付記1) 一方の主面に、電子部品がバンプを介して実装され、前記電子部品の周囲の少なくとも一部が樹脂により被覆される配線基板であって、
前記主面に於いて、前記電子部品が実装される領域の周囲の少なくとも一部に、ダムが配設され、
前記ダムに於ける、前記樹脂と接する面は、曲線部が連続して形成されてなる形状を有することを特徴とする配線基板。
(付記2) 付記1記載の配線基板であって、
前記ダムは、少なくとも一部が、前記配線基板に於ける前記電子部品の実装領域の周囲に沿って配設されてなることを特徴とする配線基板。
(付記3) 付記2記載の配線基板であて、
前記ダムは、前記電子部品を囲繞する如く略矩形状に配設され、
当該ダムの略矩形状の四隅部は、前記電子部品の実装領域から最も離れた箇所に位置していることを特徴とする配線基板。
(付記4) 付記1乃至3いずれか一項記載の配線基板であって、
前記ダムは、絶縁性樹脂を含むことを特徴とする配線基板。
(付記5) 付記4記載の配線基板であって、
前記電子部品が実装される当該配線基板の面には、所定の開口パターン形状を有する絶縁性樹脂層が配設され、
前記ダムは前記絶縁性樹脂層上に配設されていることを特徴とする配線基板。
(付記6) 付記5記載の配線基板であって、
前記ダムは、前記絶縁性樹脂層と同一の材料から成ることを特徴とする配線基板。
(付記7) 付記1乃至6いずれか一項記載の配線基板であって、
前記ダムの前記樹脂と接する内壁面は、波形形状を有することを特徴とする配線基板。
(付記8) 付記1乃至6いずれか一項記載の配線基板であって、
前記ダムの前記樹脂と接する内壁面は、鋭角部を有する鋸刃状の切り込みが連続して形成された形状を有することを特徴とする配線基板。
(付記9) 付記1乃至6いずれか一項記載の配線基板であって、
前記ダムの前記樹脂と接する内壁面は、鋭角部を有する鋸刃状の切り込みが一定の間隔を有しながら形成された形状を有することを特徴とする配線基板。
(付記10) 付記1乃至6いずれか一項記載の配線基板であって、
前記ダムの前記樹脂と接する内壁面は、略矩形形状の切り込みが連続して形成された形状を有することを特徴とする配線基板。
(付記11) 付記1乃至6いずれか一項記載の配線基板であって、
前記ダムは、2層構造を有し、
下層のダムの前記樹脂と接する内壁面は、波形形状の曲線部が連続して形成された形状を有し、
上層のダムの前記樹脂と接する内壁面は、隣接する波形形状の曲線部が前記下層のダムの内壁面の形状に対してずれて連続して形成された形状を有することを特徴とする配線基板。
(付記12) 付記1乃至11いずれか一項記載の配線基板であって、
前記電子部品が実装される当該配線基板の面上には、前記ダムよりも外側に、外部接続端子が配設されていることを特徴とする配線基板。
(付記13) 付記12記載の配線基板であって、
前記ダムは、前記外部接続用端子の外形形状に対応した形状を有することを特徴とする配線基板。
(付記14) 付記12又は13記載の配線基板であって、
前記ダムは、互いに隣接して設けられた前記外部接続端子間に於いては、当該配線基板に於ける前記電子部品の実装領域から遠ざかる方向に向かう形状をもって配設されていることを特徴とする配線基板。
(付記15) 配線基板の一方の主面に、バンプを介して半導体素子が実装され、
当該配線基板の一方の主面に於ける、前記半導体素子の周囲の少なくとも一部に、曲線部が連続して配設されてなるダムが配設され、
前記半導体素子と前記ダムとの間の於ける前記配線基板の表面が、樹脂により被覆されてなることを特徴とする半導体装置。
(付記16) 付記15記載の半導体装置であって、
前記半導体素子が実装される当該配線基板の面上に於いて、前記ダムよりも外側に外部接続端子が配設され、
第2の半導体素子が、前記半導体素子上に積層配置されると共に、前記外部接続端子に接続されてなることを特徴とする半導体装置。
(付記17) 付記15記載の半導体装置であって、
前記外部接続用端子に、受動素子部品が実装されてなることを特徴とする半導体装置。
(付記18) 配線基板の一方の主面に、バンプを介して半導体素子が実装され、
当該配線基板の一方の主面に於ける、前記半導体素子の周囲の少なくとも一部に、曲線部が連続して配設されてなるダムが配設され、
前記半導体素子と前記ダムとの間の於ける前記配線基板の表面が、樹脂により被覆されてなることを特徴とする半導体装置。
(付記19) 付記18記載の半導体装置であって、
前記半導体素子が実装される当該配線基板の面上に於いて、前記ダムよりも外側に外部接続端子が配設され、
第2の半導体素子が、前記半導体素子上に積層配置されると共に、前記外部接続端子に接続されてなることを特徴とする半導体装置。
(付記20) 付記18記載の半導体装置であって、
前記外部接続用端子に、受動素子部品が実装されてなることを特徴とする半導体装置。
52、153、252、253 ボンディング電極
53、254 外部接続端子
55、255 絶縁性樹脂層
56、156、256 ダム
65、265 半導体素子
67 ワイヤバンプ
70 アンダーフィル材
80、90、160 半導体装置
92 球状電極端子
252 半田バンプ用電極
270 半田バンプ
275 受動素子部品
A フィレット
Claims (7)
- 一方の主面に、電子部品がバンプを介して実装され、前記電子部品の周囲の少なくとも一部が樹脂により被覆される配線基板であって、
前記主面のうち、前記電子部品が実装される領域の周囲の少なくとも一部に設けられる突起部を有し、
前記突起部は、前記樹脂と接触する面に凹凸を有し、
前記電子部品が実装される当該基板の面上には、前記突起部よりも外側に、外部接続端子が配設され、
前記突起部は、互いに隣接して設けられた前記外部接続端子間に於いては、当該基板に於ける前記電子部品の実装領域から遠ざかる方向に配設されて前記凹凸の凹部を形成する
ことを特徴とする配線基板。 - 請求項1記載の配線基板であって、
前記突起部は、前記電子部品を囲繞する如く略矩形状に配設され、
当該突起部の略矩形状の四隅部は、前記電子部品の実装領域から最も離れた箇所に位置していることを特徴とする配線基板。 - 請求項1又は2に記載の配線基板であって、
前記突起部は、絶縁性樹脂を含むことを特徴とする配線基板。 - 請求項1記載の配線基板であって、
前記突起部は、前記外部接続端子の外形形状に対応した形状を有して前記凹凸の凸部を形成することを特徴とする配線基板。 - 基板と、
前記基板の主面に、バンプを介して実装される半導体素子と、
前記基板の主面のうち、前記半導体素子の周囲の少なくとも一部に設けられる突起部と、
前記突起部の内側に設けられ、前記半導体素子の周囲の一部を被覆する樹脂とを有し、
前記突起部は、前記樹脂と接触する面に凹凸を有し、
前記半導体素子が実装される当該基板の面上に於いて、前記突起部よりも外側に、外部接続端子が配設され、
前記突起部は、互いに隣接して設けられた前記外部接続端子間に於いては、当該基板に於ける前記半導体素子の実装領域から遠ざかる方向に配設されて前記凹凸の凹部を形成する
ことを特徴とする半導体装置。 - 請求項5に記載の半導体装置であって、
第2の半導体素子が、前記半導体素子上に積層配置されると共に、前記外部接続端子に接続されてなることを特徴とする半導体装置。 - 請求項5記載の半導体装置であって、
前記外部接続端子に、受動素子部品が実装されてなることを特徴とする半導体装置。
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JP2007020081A JP5211493B2 (ja) | 2007-01-30 | 2007-01-30 | 配線基板及び半導体装置 |
TW097100158A TWI373835B (en) | 2007-01-30 | 2008-01-03 | Wiring board and semiconductor device |
US11/969,402 US7880276B2 (en) | 2007-01-30 | 2008-01-04 | Wiring board and semiconductor device |
CN2008100032539A CN101236946B (zh) | 2007-01-30 | 2008-01-28 | 布线板和半导体器件 |
KR1020080008433A KR100938408B1 (ko) | 2007-01-30 | 2008-01-28 | 배선 기판 및 반도체 장치 |
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