JP6077436B2 - 配線基板および配線基板への半導体素子の実装方法 - Google Patents
配線基板および配線基板への半導体素子の実装方法 Download PDFInfo
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Description
また、配線基板Bは、主としてエポキシ樹脂等の樹脂材料から成り、その上面の中央部に半導体素子Sを搭載するための搭載部11aを有している。この搭載部11aには、半導体素子Sの電極端子Tが半田バンプHを介して接続される複数の半導体素子接続パッド12が、半導体素子Sの電極端子Tの配列ピッチP2と実質的に同じ配列ピッチP1で、電極端子Tの並びに対応した格子状の並びで配列形成されている。
また、半導体素子下面の中心に位置する第1の電極端子に被着された半田バンプが、第1のダミーパッドのダミー半田バンプ同士の間に挿入されて係止されていることから、リフロー処理による昇温時に、配線基板が熱膨張により変位しても、配線基板に載置されている半導体素子の搭載位置がずれてしまうことを抑制できるとともに、半田が溶融する温度においては、第2の電極端子と半導体素子接続パッドとの位置が実質的に一致した状態で第1の電極端子に被着された半田バンプと第1のダミーパッドのダミー半田バンプが溶融して接合される。これにより、半導体素子を配線基板上に精度良く搭載することが可能になり、半導体素子との接続信頼性の高い配線基板を提供することができる。
図1(a)に示すように本例の配線基板Aは、主として絶縁基板1と、パッド2とを具備している。
また、絶縁基板1は、その上面に半導体素子Sが搭載される搭載部1aを有している。半導体素子Sは、シリコンから成る半導体基板の下面の中心に第1の電極端子T1を有し、下面の外周部に格子状に配列された複数の第2の電極端子T2を有している。
なお、絶縁基板1は、この例では単層構造であるが、同一または異なる電気絶縁材料から成る複数の絶縁層を多層に積層した多層構造であってもよい。
半導体素子接続パッド2aは、第2の電極端子T2に対応するように搭載部1aに複数配置されている。そして、半導体素子Sの第2の電極端子T2に被着された第2の高さの半田バンプHを介して接続される。なお、本例においては、エポキシ樹脂等の樹脂材料から成る配線基板Aの熱膨張係数が、シリコン等から成る半導体素子Sの熱膨張係数よりも大きいことを考慮して、常温における半導体素子接続パッド2aの配列ピッチP1は、第2の電極端子T2の配列ピッチP2よりも小さく設定されており、リフロー処理時の半田の溶融温度における半導体素子接続パッド2aの配列ピッチP1と、第2の電極端子T2の配列ピッチP2とが実質的に一致するように配置されている。
また、第1のダミーパッド2bは、搭載部1aの中心部に搭載部1aの中心を取り囲むように互いに隣接して3個が配置されており、第1のダミーパッド2b上には、ダミー半田バンプH1が形成されている。ダミー半田バンプH1の第1の高さは、半田バンプHの第2の高さよりも高い。
さらに、第2のダミーパッド2cは、搭載部1aの四隅に少なくとも1個ずつ配置されており、第2のダミーパッド2c上にも、第1の高さを有するダミー半田バンプH1が形成されている。
そして、半導体素子Sを実装する場合は、半導体素子S下面の中心に位置する第1の電極端子T1に被着された半田バンプHが、第1のダミーパッド2b上のダミー半田バンプH1同士の間に挿入されるとともに半導体素子Sの下面の四隅が第2のダミーパッド2cに被着された第1の高さのダミー半田バンプH1に当接するようにして半導体素子Sを搭載部1a上に載置する。
また、半導体素子S下面の中心に位置する第1の電極端子T1に被着された半田バンプHが、第1のダミーパッド2bのダミー半田バンプH1同士の間に挿入されて係止されていることから、リフロー処理による昇温時に、配線基板Aが熱膨張により変位しても、配線基板Aに載置されている半導体素子Sの載置位置がずれてしまうことを抑制できるとともに、半田が溶融する温度においては、第2の電極端子T2と半導体素子接続パッド2aとの位置が実質的に一致した状態で第1の電極端子T1に被着された半田バンプHと第1のダミーパッド2bのダミー半田バンプH1が溶融して接合される。これにより、半導体素子Sを配線基板A上に精度良く搭載することが可能になり、半導体素子Sとの接続信頼性の高い配線基板Aを提供することができる。
まず、図2(a)に示すように、本発明の実装方法により実装される半導体素子Sと配線基板Aとを準備する。
なお、半導体素子Sは、接続面に沿った方向に対して3〜4ppm/℃程度の熱膨張係数を有している。
また、搭載部1aの中心部には、搭載部1aの中心を取り囲むように互いに隣接して第1のダミーパッド2bが配置されており、第1のダミーパッド2b上には、ダミー半田バンプH1が形成されている。ダミー半田バンプH1の第1の高さは、半田バンプHの第2の高さよりも高い。
さらに、搭載部の四隅には、第2のダミーパッド2cが少なくとも1個ずつ配置されており、第2のダミーパッド2c上にも、第1の高さを有するダミー半田バンプH1が形成されている。
なお、配線基板Aは、搭載面1aに沿った方向に対して10〜20ppm/℃程度の熱膨張係数を有している。
また、半導体素子S下面の中心に位置する第1の電極端子T1に被着された半田バンプHが、第1のダミーパッド2bのダミー半田バンプH1同士の間に挿入されて係止されていることから、リフロー処理による昇温時に、配線基板Aが熱膨張により変位しても、配線基板Aに載置されている半導体素子Sの載置位置がずれてしまうことを抑制できるとともに、半田が溶融する温度においては、第2の電極端子T2と半導体素子接続パッド2aとの位置が実質的に一致した状態で第1の電極端子T1に被着された半田バンプHと第1のダミーパッド2bのダミー半田バンプH1が溶融して接合される。これにより、半導体素子Sを配線基板A上に精度良く搭載することが可能になり、半導体素子Sとの接続信頼性の高い配線基板Aを提供することができる。
1a 搭載部
2a 半導体素子接続パッド
2b 第1のダミーパッド
2c 第2のダミーパッド
A 配線基板
H1 ダミー半田バンプ
S 半導体素子
Claims (1)
- 上面に半導体素子が搭載される四角形状の搭載部を有する絶縁基板の前記搭載部に、上面が平坦な多数の半導体素子接続パッドが、該半導体素子接続パッドの上面を露出させた状態で格子状の並びに配列形成されているとともに、前記搭載部の中心部に該搭載部の中心を取り囲むように互いに隣接して配置された少なくとも3個以上の第1のダミーパッド、および前記搭載部の四隅に少なくとも1個ずつ配置された第2のダミーパッドが形成されており、前記第1および第2のダミーパッド上に第1の高さを有するダミー半田バンプが形成された配線基板を準備する工程と、
前記搭載部に対応する大きさの半導体基板の下面に、該下面の中心に位置する第1の電極端子および前記半導体素子接続パッドの配列に対応して配列形成された第2の電極端子を有するとともに、前記第1および第2の電極端子に、前記下面からの高さが前記第1の高さよりも低い第2の高さの半田バンプが形成されており、該半田バンプおよび前記ダミー半田バンプが溶融する温度において前記第2の電極端子のピッチが該温度における前記半導体素子接続パッドのピッチと実質的に一致する半導体素子を準備する工程と、前記第1の電極端子の前記半田バンプが前記第1のダミーパッドの前記ダミー半田バンプ同士の間に挿入されるとともに前記半導体素子の下面の四隅が前記第2のダミーパッドの前記ダミー半田バンプに当接するようにして前記半導体素子を前記搭載部上に載置する工程と、前記配線基板および半導体素子を前記温度に加熱して前記半田バンプおよび前記ダミー半田バンプを溶融させ前記第1の電極端子と前記第1のダミーパッドとを前記半田バンプおよび前記ダミー半田バンプの半田で接続するとともに前記第2の電極端子と前記半導体素子接続パッドとを前記半田バンプの半田で接続する工程と、を行うことを特徴とする半導体素子の実装方法。
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JP2013245834A JP6077436B2 (ja) | 2013-11-28 | 2013-11-28 | 配線基板および配線基板への半導体素子の実装方法 |
KR1020140162448A KR20150062126A (ko) | 2013-11-28 | 2014-11-20 | 배선 기판 및 배선 기판으로의 반도체 소자의 실장 방법 |
TW103140411A TW201528448A (zh) | 2013-11-28 | 2014-11-21 | 配線基板及將半導體元件安裝至配線基板的安裝方法 |
CN201410688184.5A CN104684253A (zh) | 2013-11-28 | 2014-11-25 | 布线基板以及半导体元件向布线基板的安装方法 |
US14/552,928 US20150144390A1 (en) | 2013-11-28 | 2014-11-25 | Wiring board and method for mounting semiconductor element on wiring board |
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CN105636343B (zh) * | 2016-01-15 | 2018-09-11 | 广东欧珀移动通信有限公司 | 硬板及具有其的移动终端 |
JP6565895B2 (ja) * | 2016-12-26 | 2019-08-28 | 日亜化学工業株式会社 | 半導体装置用パッケージ及び半導体装置 |
KR20210051535A (ko) | 2019-10-30 | 2021-05-10 | 삼성전자주식회사 | 반도체 패키지 및 그 제조방법 |
CN114531791B (zh) * | 2022-03-04 | 2023-04-14 | 深圳市晶世界透明显示技术股份有限公司 | Led固晶透明显示屏的制作方法、存储介质以及电子设备 |
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JPH10154726A (ja) * | 1996-11-25 | 1998-06-09 | Toshiba Corp | 半導体装置及びその製造方法 |
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JP2004031693A (ja) * | 2002-06-26 | 2004-01-29 | Matsushita Electric Works Ltd | 半導体装置 |
TW582077B (en) * | 2002-12-18 | 2004-04-01 | Advanced Semiconductor Eng | Flip-chip substrate and the flip-chip bonding process thereof |
JP2005310837A (ja) * | 2004-04-16 | 2005-11-04 | Elpida Memory Inc | 半導体装置及びその製造方法 |
JP2006222374A (ja) * | 2005-02-14 | 2006-08-24 | Fuji Film Microdevices Co Ltd | 半導体チップ |
US7215026B2 (en) * | 2005-04-14 | 2007-05-08 | Samsung Electonics Co., Ltd | Semiconductor module and method of forming a semiconductor module |
KR20080014823A (ko) * | 2005-05-04 | 2008-02-14 | 엔엑스피 비 브이 | 디바이스 및 그 제조 방법과, 센서 모듈 및 그 제조 방법 |
JP4981712B2 (ja) * | 2008-02-29 | 2012-07-25 | 新光電気工業株式会社 | 配線基板の製造方法及び半導体パッケージの製造方法 |
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KR20130005465A (ko) * | 2011-07-06 | 2013-01-16 | 삼성전자주식회사 | 반도체 스택 패키지 장치 |
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JP2013225611A (ja) * | 2012-04-23 | 2013-10-31 | Kyocer Slc Technologies Corp | 半導体素子等の実装方法 |
US9082674B2 (en) * | 2013-10-14 | 2015-07-14 | Nvidia Corporation | Microelectronic package with stress-tolerant solder bump pattern |
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