JP7384820B2 - 半導体装置 - Google Patents
半導体装置 Download PDFInfo
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- JP7384820B2 JP7384820B2 JP2020556143A JP2020556143A JP7384820B2 JP 7384820 B2 JP7384820 B2 JP 7384820B2 JP 2020556143 A JP2020556143 A JP 2020556143A JP 2020556143 A JP2020556143 A JP 2020556143A JP 7384820 B2 JP7384820 B2 JP 7384820B2
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- electrode
- layer
- wiring
- rewiring
- semiconductor device
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Description
12 半導体層
13 第1主面
23 保護絶縁層
24 電極パッド
33 再配線層
41 第1配線面
42 第2配線面
44 配線リセス
51 非粗面領域
52 粗面領域
70 ポスト電極
71 第1電極面
72 第2電極面
73 電極側面
74 電極リセス
93 封止樹脂層
94 樹脂主面
96 マトリックス樹脂
97 フィラー
98 大径フィラー
99 小径フィラー
100 導電接合材
121 半導体装置
Claims (22)
- 主面を有する半導体層と、
前記主面の上に形成された電極パッドと、
前記主面の上に形成され、前記電極パッドを露出させる開口を有し、前記電極パッドを被覆する下地層と、
前記開口内において前記電極パッドに接続された第1配線面、および、前記第1配線面の反対側に位置し、粗面化された第2配線面を有し、前記開口から前記電極パッド外の領域に引き出されるように前記下地層の上に形成された再配線と、
前記下地層のうち前記再配線から露出した露出部に形成されたリセスと、
前記主面の上で前記第2配線面を被覆し、前記再配線を封止する樹脂と、を含み、
前記再配線の前記第1配線面は、厚さ方向に前記リセスに間隔を空けて対向する部分を有している、半導体装置。 - 前記第2配線面に接続されたポスト電極をさらに含み、
前記樹脂は、前記ポスト電極の一部を露出させるように、前記再配線および前記ポスト電極を封止している、請求項1に記載の半導体装置。 - 前記第2配線面は、粗面化された第1領域および前記第1領域に対して面粗さの小さい第2領域を含み、
前記ポスト電極は、前記第2領域に接続されている、請求項2に記載の半導体装置。 - 前記ポスト電極は、前記第2配線面に接続された第1電極面、前記第1電極面の反対側に位置する第2電極面、ならびに、前記第1電極面および前記第2電極面を接続し、粗面化された電極側面を有しており、
前記樹脂は、前記第2電極面を露出させ、前記電極側面を被覆するように前記ポスト電極を封止している、請求項2または3に記載の半導体装置。 - 前記第2配線面は、第1算術平均粗さを有しており、
前記電極側面は、前記第1算術平均粗さ未満の第2算術平均粗さを有している、請求項4に記載の半導体装置。 - 前記第1算術平均粗さは、0.5μm以上2.0μm以下である、請求項5に記載の半導体装置。
- 前記第2算術平均粗さは、0μmを超えて0.5μm未満である、請求項5または6に記載の半導体装置。
- 前記ポスト電極は、前記再配線の厚さを超える厚さを有している、請求項2~7のいずれか一項に記載の半導体装置。
- 前記ポスト電極は、前記第2配線面の法線方向に沿って延びる柱状に形成されている、請求項2~8のいずれか一項に記載の半導体装置。
- 前記ポスト電極は、前記再配線から前記半導体層とは反対方向に向けて先細り形状に形成されている、請求項2~9のいずれか一項に記載の半導体装置。
- 前記ポスト電極は、銅を含む、請求項2~10のいずれか一項に記載の半導体装置。
- 前記ポスト電極に接続された導電接合材をさらに含む、請求項2~11のいずれか一項に記載の半導体装置。
- 前記樹脂は、マトリックス樹脂、および、前記マトリックス樹脂に添加され、不均一な径をそれぞれ有する複数のフィラーを含む、請求項1~12のいずれか一項に記載の半導体装置。
- 前記再配線の前記第2配線面は、複数の配線リセスによって粗面化されており、
前記樹脂は、複数の前記配線リセス内に位置された複数の小径フィラーを含む、請求項1~13のいずれか一項に記載の半導体装置。 - 前記再配線は、銅を含む、請求項1~14のいずれか一項に記載の半導体装置。
- 前記再配線の前記第1配線面は、厚さ方向に前記リセスに間隔を空けて対向する周縁部を有している、請求項1~15のいずれか一項に記載の半導体装置。
- 主面を有する半導体層と、
前記主面の上に形成された電極パッドと、
前記主面の上に形成され、前記電極パッドを露出させる開口を有し、前記電極パッドを被覆する下地層と、
前記開口内において前記電極パッドに接続された第1配線面、および、前記第1配線面の反対側に位置する第2配線面を有し、前記開口から前記電極パッド外の領域に引き出されるように前記下地層の上に形成された再配線と、
前記下地層のうち前記再配線から露出した露出部に形成されたリセスと、
前記再配線の前記第2配線面に接続された第1電極面、前記第1電極面の反対側に位置する第2電極面、ならびに、前記第1電極面および前記第2電極面を接続し、粗面化された電極側面を有するポスト電極と、
前記ポスト電極の前記第2電極面を露出させ、前記ポスト電極の前記電極側面を被覆するように、前記主面の上で前記再配線および前記ポスト電極を封止する樹脂と、を含み、
前記再配線の前記第1配線面は、厚さ方向に前記リセスに間隔を空けて対向する部分を有している、半導体装置。 - 前記樹脂は、前記ポスト電極の前記第2電極面に連なる樹脂主面を有している、請求項17に記載の半導体装置。
- 前記樹脂は、マトリックス樹脂、および、前記マトリックス樹脂に添加され、不均一な径をそれぞれ有する複数のフィラーを含む、請求項17または18に記載の半導体装置。
- 前記ポスト電極の前記電極側面は、複数の電極リセスによって粗面化されており、
前記樹脂は、複数の前記電極リセス内に位置された複数の小径フィラーを含む、請求項17~19のいずれか一項に記載の半導体装置。 - 主面を有する半導体層と、
前記主面の上に形成された電極パッドと、
前記電極パッドに接続された第1配線面、および、前記第1配線面の反対側に位置し、
複数の配線リセスによって粗面化された第2配線面を有し、前記電極パッド外の領域に引き出されるように前記主面の上に形成された再配線と、
前記再配線を封止するように前記主面の上において前記第2配線面を被覆し、マトリックス樹脂、および、前記マトリックス樹脂に添加され、不均一な径をそれぞれ有する複数
のフィラーを含む樹脂と、を含み、
前記樹脂は、複数の前記配線リセス外の領域において前記マトリックス樹脂と共に前記再配線を封止する複数の大径フィラー、および、前記マトリックス樹脂と共に複数の前記配線リセスを埋める複数の小径フィラーを含む、半導体装置。 - 主面を有する半導体層と、
前記主面の上に形成された電極パッドと、
前記電極パッドに接続され、前記電極パッド外の領域に引き出されるように前記主面の上に形成された再配線と、
前記再配線に接続された第1電極面、前記第1電極面の反対側に位置する第2電極面、ならびに、前記第1電極面および前記第2電極面を接続し、複数の電極リセスによって粗面化された電極側面を有するポスト電極と、
前記主面の上において前記第2電極面を露出させ、前記電極側面を被覆するように前記再配線および前記ポスト電極を封止し、マトリックス樹脂、および、前記マトリックス樹脂に添加され、不均一な径をそれぞれ有する複数のフィラーを含む樹脂と、を含み、
前記樹脂は、複数の前記電極リセス外の領域において前記マトリックス樹脂と共に前記再配線および前記ポスト電極を封止する複数の大径フィラー、および、前記マトリックス樹脂と共に複数の前記電極リセスを埋める複数の小径フィラーを含む、半導体装置。
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