JP2007173655A - 半導体装置 - Google Patents
半導体装置 Download PDFInfo
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- JP2007173655A JP2007173655A JP2005371221A JP2005371221A JP2007173655A JP 2007173655 A JP2007173655 A JP 2007173655A JP 2005371221 A JP2005371221 A JP 2005371221A JP 2005371221 A JP2005371221 A JP 2005371221A JP 2007173655 A JP2007173655 A JP 2007173655A
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Abstract
【解決手段】搭載基板2に実装した一層目の半導体素子1aに第2層目以上の半導体素子1bを積層するとともに、半導体素子1a,1bの少なくとも一つの半導体素子は対向する両端部を結ぶ方向が搭載基板2の外辺2cに対して平行でないように角度をつけて配置され、封止樹脂6で封止されている。
【選択図】図1
Description
また、搭載基板2に凹部2aを作製する工程が含まれることから、搭載基板2の上に直接に搭載する方法と比べ、工程数増加に伴うコスト増加と作製時間増加といった問題点が挙げられる。
本発明の請求項4記載の半導体装置は、請求項3において、全部の前記半導体素子は、対向する両端部にだけ素子電極が形成されており、前記搭載基板には、積層して搭載された複数の前記半導体素子の前記素子電極の近傍に前記基板電極が形成されていることを特徴とする。
(実施の形態1)
図1(a),図1(b)は本発明の(実施の形態1)を示す。
まず、搭載基板2の外辺に対して各々所定の角度を有して積層配置される半導体素子1a,1bの各々の素子電極3aおよび3bに対応するそれぞれの基板電極5a,5bを上面に設けた搭載基板2を準備する。
続いて、最下層に配置された半導体素子1aと同様に、搭載基板2の外辺に対して所定の角度(この実施の形態では45°)を有して、半導体素子1bを半導体素子1aの上に接着剤8bを用いて搭載する。その後、半導体素子1a,1bを250℃から350℃に加熱しながら、積層配置された半導体素子1aの上の素子電極3aと基板電極5aとを、キャピラリーと呼ばれる工具で加圧しながら熱圧着を用いて金属細線4aにより電気的に接続する。同様にして半導体素子1bの素子電極3bと基板電極5bとを金属細線4bにより接続する。
さらに、接続後、金型を用いて2つの半導体素子1a,1bと金属細線4a,4bとその周辺部に加熱溶解した封止樹脂6を流し込み硬化させる。
また、半導体素子1a,1bを搭載基板2に接着剤8a,8bを用いて搭載することにより、基板加工の工程を削除し作業時間の短縮化およびコストの削減を行うことができ、かつ従来例の図20に見られた隙間7を取り除くことができ封止樹脂の未充填という問題も解決することができる。
(実施の形態2)
図3(a),図3(b)は本発明の(実施の形態2)を示す。
まず、図10(a),図10(b)に示すように、半導体素子1a,1b,1cの各々の素子電極3a,3b,3cに対応するそれぞれの基板電極5a,5b,5cを設けた搭載基板2を準備する。なお、この搭載基板2の下面には、外部接続電極としての多数のはんだボール9が形成されており、はんだボール9は該当する基板電極5a,5b,5cに搭載基板2のビア(図示せず)によって配線されている。
この金属細線4a,4b,4cによる接続後、図14(a),図14(b)に示すように加熱溶解して封止樹脂6などを流し込み封止する。
図4(a),図4(b)は本発明の(実施の形態3)を示す。
図1に示した(実施の形態1)では2つの半導体素子1a,1bを搭載基板2に積層配置する場合を説明したが、この(実施の形態3)では4つの半導体素子1a,1b,1c,1dを搭載基板2に積層配置する場合を説明する。
まず、搭載基板2の外辺に対して各々所定の角度を有して積層配置される半導体素子1a〜1dの各々の素子電極3a〜3dに対応するそれぞれの基板電極5a〜5dを設けた搭載基板2を準備する。なお、この搭載基板2の下面には、外部接続電極としての多数のはんだボール9が形成されており、はんだボール9は該当する基板電極5a,5b,5c,5dに搭載基板2のビア(図示せず)によって配線されている。
さらに、接続後、4つの半導体素子1a〜1dと金属細線4a〜4dと、その周辺部に加熱溶解した封止樹脂6などを流し込み封止する。
図5(a),図5(b)は本発明の(実施の形態4)を示す。
図1に示した(実施の形態1)では半導体素子1aは金属細線4aによって搭載基板2の基板電極5aと電気接続したが、この実施の形態では、金属細線4aを使用せずに、搭載基板2の基板電極5aと電気接続されている点だけが、(実施の形態1)とは異なっている。
さらに、接続後、2つの半導体素子1a,1bと金属細線4bと、その周辺部に加熱溶解した封止樹脂6などを流し込み封止する。
図7(a),図7(b)は本発明の(実施の形態5)を示す。
図3に示した(実施の形態2)では半導体素子1aは金属細線4aによって搭載基板2の基板電極5aと電気接続したが、この実施の形態では、金属細線4aを使用せずに、搭載基板2の基板電極5aと電気接続されている点だけが、(実施の形態2)とは異なっている。
さらに、接続後、3つの半導体素子1a,1b,1cと金属細線4b,4c,と、その周辺部に加熱溶解した封止樹脂6などを流し込み図19(a),図19(b)に示すように封止する。
図8(a),図8(b)は本発明の(実施の形態6)を示す。
図4に示した(実施の形態3)では半導体素子1aは金属細線4aによって搭載基板2の基板電極5aと電気接続したが、この実施の形態では、金属細線4aを使用せずに、搭載基板2の基板電極5aと電気接続されている点だけが、(実施の形態3)とは異なっている。
さらに、接続後、4つの半導体素子1a〜1dと金属細線4b〜4dと、その周辺部に加熱溶解した封止樹脂6などを流し込み封止する。
図9(a),図9(b)は本発明の(実施の形態7)を示す。
図8に示した(実施の形態6)では搭載基板2に4枚の半導体素子1a〜1dを搭載していたが、この実施の形態では、積層配置された半導体素子が1枚増えている点が(実施の形態6)とは異なっている。
半導体素子1aの両端部に設けられた素子電極3aにはバンプ10が形成されている。搭載基板2には、素子電極3aにはバンプ10に対応する位置の、素子電極3aの各バンプ10の直下に基板電極5aが設けられている。さらに搭載基板2には、素子電極3b,3c,3d,3eに対応して搭載基板2に基板電極5b,5c,5d,5eが設けられている。
さらに、接続後、5つの半導体素子1a〜1eと金属細線4b〜4eと、その周辺部に加熱溶解した封止樹脂6などを流し込み封止する。
2 搭載基板
2c 搭載基板2の外辺
3a,3b,3c,3d,3e 素子電極
4a,4b,4c,4d,4e 金属細線
5a,5b,5c,5d,5e 基板電極
6 封止樹脂
8a,8b,8c,8d,8e 接着剤
9 はんだボール
10 バンプ
Claims (6)
- 矩形型の搭載基板に複数の半導体素子を積層して搭載した半導体装置であって、
前記搭載基板に実装した一層目の前記半導体素子に第2層目以上の前記半導体素子を積層するとともに、
前記積層は、前記複数の半導体素子の少なくとも一つの半導体素子は対向する両端部に素子電極が形成されており、前記両端部を結ぶ方向が前記搭載基板の外辺に対して平行でないように角度をつけて配置され、
前記搭載基板に全ての複数の半導体素子が封止樹脂で封止されている
半導体装置。 - 一層目の前記半導体素子がバンプを介して前記搭載基板にフリップチップ実装され、
第2層目以上の前記半導体素子は前記搭載基板の基板電極とボンディングワイヤで電気接続されている
請求項1記載の半導体装置。 - 全部の前記半導体素子は、前記搭載基板の基板電極とボンディングワイヤで電気接続されている
請求項1記載の半導体装置。 - 全部の前記半導体素子は、対向する両端部にだけ素子電極が形成されており、
前記搭載基板には、積層して搭載された複数の前記半導体素子の前記素子電極の近傍に前記基板電極が形成されている
請求項3記載の半導体装置。 - 前記搭載基板に搭載された複数の前記半導体素子は、素子電極が形成されている対向する両端部を結ぶ方向が互いに異なっている
請求項4記載の半導体装置。 - 一層目の前記半導体素子は、回路形成面を前記搭載基板の側にして前記搭載基板にフリップチップ実装され、
第2層目以上の前記半導体素子は回路形成面を前記搭載基板の側とは反対側にして、一層目の前記半導体素子の前記回路形成面とは反対側の面に搭載されている
請求項2記載の半導体装置。
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JP2009283835A (ja) * | 2008-05-26 | 2009-12-03 | Elpida Memory Inc | 半導体装置及びその製造方法 |
CN110164858A (zh) * | 2018-02-16 | 2019-08-23 | 丰田自动车株式会社 | 半导体器件 |
JP2019145776A (ja) * | 2018-02-16 | 2019-08-29 | トヨタ自動車株式会社 | 半導体装置 |
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JPH02312265A (ja) * | 1989-05-26 | 1990-12-27 | Mitsubishi Electric Corp | 半導体装置 |
JPH10242380A (ja) * | 1997-02-27 | 1998-09-11 | Hitachi Ltd | 半導体装置およびその製造方法 |
JP2002217356A (ja) * | 2001-01-19 | 2002-08-02 | Nec Corp | 半導体装置及びその製造方法 |
JP2006073625A (ja) * | 2004-08-31 | 2006-03-16 | Sharp Corp | 電子部品 |
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JPH02312265A (ja) * | 1989-05-26 | 1990-12-27 | Mitsubishi Electric Corp | 半導体装置 |
JPH10242380A (ja) * | 1997-02-27 | 1998-09-11 | Hitachi Ltd | 半導体装置およびその製造方法 |
JP2002217356A (ja) * | 2001-01-19 | 2002-08-02 | Nec Corp | 半導体装置及びその製造方法 |
JP2006073625A (ja) * | 2004-08-31 | 2006-03-16 | Sharp Corp | 電子部品 |
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JP2009283835A (ja) * | 2008-05-26 | 2009-12-03 | Elpida Memory Inc | 半導体装置及びその製造方法 |
CN110164858A (zh) * | 2018-02-16 | 2019-08-23 | 丰田自动车株式会社 | 半导体器件 |
JP2019145776A (ja) * | 2018-02-16 | 2019-08-29 | トヨタ自動車株式会社 | 半導体装置 |
JP7139881B2 (ja) | 2018-02-16 | 2022-09-21 | 株式会社デンソー | 半導体装置 |
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