JP2008311538A - 回路基板及び半導体装置 - Google Patents
回路基板及び半導体装置 Download PDFInfo
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- JP2008311538A JP2008311538A JP2007159631A JP2007159631A JP2008311538A JP 2008311538 A JP2008311538 A JP 2008311538A JP 2007159631 A JP2007159631 A JP 2007159631A JP 2007159631 A JP2007159631 A JP 2007159631A JP 2008311538 A JP2008311538 A JP 2008311538A
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Abstract
【解決手段】半導体チップがフリップチップ実装される回路基板1は、基板本体2の表面に形成される電極パッド3と、基板本体2の表面を覆い、電極パッド3を露出させる開口部4aを有するソルダレジスト層4と、を備える。ソルダレジスト層4は、電極パッド3と接しないように形成され、且つ、前記電極パッドの最大幅をL、前記ソルダレジスト層の厚みをHとした場合に、H/Lが1.0≦H/L≦1.5を満たすように形成される。
【選択図】図1
Description
まず、第1実施形態の半導体チップがフリップチップ実装される回路基板の構成について、主に、図1、図2、及び図3を参照しながら説明する。なお、図1は、第1実施形態の回路基板の構成を示す概略断面図である。図2及び図3は、回路基板に形成される電極パッド周辺の構成を示す概略平面図である。
次に、第2実施形態の半導体チップがフリップチップ実装される回路基板について説明する。なお、第1実施形態の回路基板1と重複する部分については同一の符号を付し、特に必要がない場合はその説明を省略する場合がある。
2 基板本体
3 電極パッド
4 ソルダレジスト層
4a 開口部(第1の開口部)
9 半田バンプ
14 フィルム層
14a 開口部(第2の開口部)
20、30 半導体装置
21 半導体チップ
L 電極パッドの直径(電極パッドの最大幅)
H ソルダレジスト層(又はソルダレジスト層及びフィルム層)の厚み
W1 ソルダレジスト層の開口部の開口幅(第1の開口部の開口幅)
W2 フィルム層の開口部の開口幅(第2の開口部の開口幅)
Claims (6)
- 基板本体の表面に形成される電極パッドと、
前記基板本体の表面を覆い、前記電極パッドを露出させる開口部を有するソルダレジスト層と、
を備え、前記電極パッド上に形成される半田バンプを用いて半導体チップがフリップチップ実装される回路基板であって、
前記ソルダレジスト層は、前記電極パッドと接しないように形成され、且つ、前記電極パッドの最大幅をL、前記ソルダレジスト層の厚みをHとした場合に、H/Lが1.0≦H/L≦1.5を満たすように形成されることを特徴とする回路基板。 - 前記電極パッドは、平面視略円形状に設けられ、前記最大幅は前記電極パッドの直径であることを特徴とする請求項1に記載の回路基板。
- 基板本体の表面に形成される電極パッドと、
前記基板本体の表面を覆い、前記電極パッドを露出させる第1の開口部を有するソルダレジスト層と、
を備え、前記電極パッド上に形成される半田バンプを用いて半導体チップがフリップチップ実装される回路基板であって、
前記ソルダレジスト層の上に、前記第1の開口部と連通する第2の開口部を有するフィルム層が更に形成され、
前記第1の開口部と前記第2の開口部とのうち、少なくとも一方は、その開口幅が厚み方向に変化することを特徴とする回路基板。 - 前記第1の開口部の開口幅は、前記基板本体から離れる方向に向けて拡がるように形成され、
前記第2の開口部の開口幅は、前記基板本体に近づく方向に向けて拡がるように形成されることを特徴とする請求項3に記載の回路基板。 - 前記ソルダレジスト層及び前記フィルム層は、前記電極パッドと接しないように形成され、前記電極パッドの最大幅をL、前記ソルダレジスト層と前記フィルム層との厚みの合計をHとした場合に、H/Lが1.0≦H/L≦1.5を満たすように形成されることを特徴とする請求項3又は4に記載の回路基板。
- 請求項1から5のいずれかに記載の回路基板と、
該回路基板にフリップチップ実装された半導体チップと、
を備えることを特徴とする半導体装置。
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TW097122732A TW200919679A (en) | 2007-06-18 | 2008-06-18 | Circuit board and semiconductor device |
PCT/JP2008/061099 WO2008156100A1 (ja) | 2007-06-18 | 2008-06-18 | 回路基板及び半導体装置 |
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JP2012156257A (ja) * | 2011-01-25 | 2012-08-16 | Fujitsu Ltd | 回路基板及び電子装置 |
US20140158751A1 (en) * | 2012-08-10 | 2014-06-12 | Panasonic Corporation | Method and system for producing component mounting board |
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JP5422236B2 (ja) * | 2009-03-23 | 2014-02-19 | 株式会社東芝 | 撮像装置 |
TWI464847B (zh) * | 2009-12-07 | 2014-12-11 | Xintec Inc | 電子元件封裝體及其製造方法 |
US9263378B1 (en) | 2014-08-04 | 2016-02-16 | International Business Machines Corporation | Ball grid array and land grid array assemblies fabricated using temporary resist |
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CN114365584A (zh) * | 2020-06-29 | 2022-04-15 | 庆鼎精密电子(淮安)有限公司 | 线路板及其制作方法 |
CN117855182A (zh) * | 2022-09-30 | 2024-04-09 | 长鑫存储技术有限公司 | 半导体结构和半导体结构的制造方法 |
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JP2000277898A (ja) * | 1999-03-24 | 2000-10-06 | Nippon Avionics Co Ltd | ボールグリッドアレイパッケージ実装用基板 |
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US9237686B2 (en) * | 2012-08-10 | 2016-01-12 | Panasonic Intellectual Property Management Co., Ltd. | Method and system for producing component mounting board |
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WO2008156100A1 (ja) | 2008-12-24 |
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