JP2015153823A - 配線基板及び半導体パッケージ - Google Patents
配線基板及び半導体パッケージ Download PDFInfo
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Abstract
【解決手段】本配線基板は、半導体素子又は半導体素子を含むモジュールが搭載される配線基板であって、放熱板と、前記放熱板上に接着層を介して設けられた絶縁層と、前記絶縁層上に設けられた、前記半導体素子と電気的に接続される電気接続用配線、及び、前記半導体素子とは電気的に接続されない熱拡散用配線と、前記熱拡散用配線と一体に形成され、前記熱拡散用配線の前記絶縁層側の面に前記絶縁層を厚さ方向に貫通する貫通孔を充填するように設けられた貫通配線と、前記絶縁層上に設けられ、前記電気接続用配線を露出する開口部と、前記熱拡散用配線を露出する開口部を備えた反射膜と、を有し、前記放熱板の前記接着層が形成される面には突起部が設けられ、前記突起部は、前記放熱板の組成と同じ組成からなり、少なくとも前記貫通配線と平面視で重複する領域に配置されている。
【選択図】図1
Description
[第1の実施の形態に係る配線基板の構造]
まず、第1の実施の形態に係る配線基板の構造について説明する。図1は、第1の実施の形態に係る配線基板を例示する図であり、図1(b)は平面図、図1(a)は図1(b)のA−A線に沿う断面図である。
次に、第1の実施の形態に係る配線基板の製造方法について説明する。図3〜図7は、第1の実施の形態に係る配線基板の製造工程を例示する図である。なお、第1の実施の形態に係る配線基板の製造工程の説明で用いる断面図は、全て図1(a)に対応する断面図である。
第1の実施の形態の変形例1では、放熱板の上面の一部の領域のみに突起部を設ける例を示す。なお、第1の実施の形態の変形例1において、既に説明した実施の形態と同一構成部品についての説明は省略する場合がある。
第1の実施の形態の変形例2では、第1の実施の形態の変形例1と平面形状が異なる突起部を設ける例を示す。なお、第1の実施の形態の変形例2において、既に説明した実施の形態と同一構成部品についての説明は省略する場合がある。
第1の実施の形態の変形例3では、第1の実施の形態の変形例1と平面形状が異なる突起部を設ける他の例を示す。なお、第1の実施の形態の変形例3において、既に説明した実施の形態と同一構成部品についての説明は省略する場合がある。
第1の実施の形態の変形例4では、第1の実施の形態の変形例1と平面形状が異なる突起部を設ける他の例を示す。なお、第1の実施の形態の変形例4において、既に説明した実施の形態と同一構成部品についての説明は省略する場合がある。
第2の実施の形態では、突起部と貫通配線とが接触する例を示す。なお、第2の実施の形態において、既に説明した第1の実施の形態と同一構成部品についての説明は省略する場合がある。
第3の実施の形態では、第1の実施の形態で示した配線基板に半導体素子(発光素子)を搭載した半導体パッケージの例を示す。なお、第3の実施の形態において、既に説明した実施の形態と同一構成部品についての説明は省略する。
第3の実施の形態の変形例1では、第1の実施の形態で示した配線基板に半導体素子(発光素子)を搭載した半導体パッケージの他の例を示す。なお、第3の実施の形態の変形例1において、既に説明した実施の形態と同一構成部品についての説明は省略する場合がある。
10、60 絶縁層
10x 貫通孔
20、70、190 接着層
20a 接着層の外縁部
30A 金属層
31〜33 配線
41〜45 めっき膜
50 貫通配線
60x、60y 開口部
80、80A、80B、80C、80D、80E 放熱板
91、92、93、94、95、96 突起部
91a、91b、92a、92b、93a、93b、94a、94b 線状突起部
100、100A 半導体パッケージ
120 半導体素子
130 電気接続用端子
135 熱拡散用端子
140 封止樹脂
180 ボンディングワイヤ
T スペース
Z 配線部
Claims (8)
- 半導体素子又は半導体素子を含むモジュールが搭載される配線基板であって、
放熱板と、
前記放熱板上に接着層を介して設けられた絶縁層と、
前記絶縁層上に設けられた、前記半導体素子と電気的に接続される電気接続用配線、及び、前記半導体素子とは電気的に接続されない熱拡散用配線と、
前記熱拡散用配線と一体に形成され、前記熱拡散用配線の前記絶縁層側の面に前記絶縁層を厚さ方向に貫通する貫通孔を充填するように設けられた貫通配線と、
前記絶縁層上に設けられ、前記電気接続用配線を露出する開口部と、前記熱拡散用配線を露出する開口部を備えた反射膜と、を有し、
前記放熱板の前記接着層が形成される面には突起部が設けられ、
前記突起部は、前記放熱板の組成と同じ組成からなり、少なくとも前記貫通配線と平面視で重複する領域に配置されていることを特徴とする配線基板。 - 前記突起部は金属からなり、
前記貫通配線の前記接着層側の端面と前記突起部の先端は離間していることを特徴とする請求項1記載の配線基板。 - 前記突起部は、一定の規則性を有して形成されていることを特徴とする請求項1又は2記載の配線基板。
- 前記突起部は、平面視において、網目模様、縞模様、又は水玉模様に形成されていることを特徴とする請求項3記載の配線基板。
- 平面視において、前記熱拡散用配線の形成領域は、前記反射膜の前記熱拡散用配線を露出する開口部の領域よりも外側に延在し、前記電気接続用配線の形成領域よりも大きく設けられていることを特徴とする請求項1乃至4の何れか一項記載の配線基板。
- 前記貫通配線は、平面視において、前記貫通配線の外形の一部が、搭載される前記半導体素子の外形の一部と重複する範囲に配置されるように設けられていることを特徴とする請求項1乃至5の何れか一項記載の配線基板。
- 前記電気接続用配線は平面上のみに形成され、前記絶縁層及び前記接着層の前記電気接続用配線と平面視で重複する領域には前記貫通配線は存在しないことを特徴とする請求項1乃至6の何れか一項記載の配線基板。
- 請求項1乃至7の何れか一項記載の配線基板と、
前記熱拡散用配線の前記反射膜から露出する面上に搭載された前記半導体素子又は前記モジュールと、を有することを特徴とする半導体パッケージ。
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JP6590123B1 (ja) * | 2019-01-10 | 2019-10-16 | 三菱電機株式会社 | 半導体装置 |
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