JP7322467B2 - 半導体装置 - Google Patents
半導体装置 Download PDFInfo
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- JP7322467B2 JP7322467B2 JP2019066970A JP2019066970A JP7322467B2 JP 7322467 B2 JP7322467 B2 JP 7322467B2 JP 2019066970 A JP2019066970 A JP 2019066970A JP 2019066970 A JP2019066970 A JP 2019066970A JP 7322467 B2 JP7322467 B2 JP 7322467B2
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- semiconductor element
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- protrusion
- semiconductor device
- signal pad
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- Engineering & Computer Science (AREA)
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- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Geometry (AREA)
- Structures Or Materials For Encapsulating Or Coating Semiconductor Devices Or Solid State Devices (AREA)
- Wire Bonding (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
Description
12:半導体素子
12a、12b:主電極
12c:信号パッド
12e:頂面
12d:突出部
14、16:放熱板
18:信号端子
18a:一端
18b:凹部
18c:凸部
18d:頂面
20:封止体
22、24:はんだ層
Claims (11)
- 表面に信号パッドを有するパワー半導体素子と、
前記信号パッドに接合材を介して接合された端子と、を備え、
前記パワー半導体素子の表面に露出する前記信号パッドの表面には、前記端子に向けて突出する突出部と、前記突出部の周囲に位置する非突出部と、が設けられており、
前記接合材は、前記突出部に接触するとともに、前記非突出部には接触していない、
半導体装置。 - 前記端子において前記接合材が接触する範囲を、前記パワー半導体素子の前記表面に投影した投影範囲内に、前記突出部の全体が包含される、請求項1に記載の半導体装置。
- 前記端子において前記接合材が接触する範囲を、前記パワー半導体素子の前記表面に投影した投影範囲内に、前記信号パッドの全体が包含される、請求項1又は2に記載の半導体装置。
- 前記端子には、前記信号パッドの前記突出部に対向して、凹部が設けられており、
前記接合材は、前記凹部の内面に接触している、請求項1から3のいずれか一項に記載の半導体装置。 - 前記端子には、前記信号パッドの前記突出部と対向して、凸部が設けられており、
前記接合材は、前記凸部の頂面に接触している、請求項1から3のいずれか一項に記載の半導体装置。 - 前記凸部の前記頂面を、前記パワー半導体素子の前記表面に投影した投影範囲内に、前記突出部の全体が包含される、請求項5に記載の半導体装置。
- 前記突出部を構成する材料は、前記接合材を構成する材料よりも融点が高い、請求項1から6のいずれか一項に記載の半導体装置。
- 前記突出部を構成する材料は、前記信号パッドを構成する材料と異なる、請求項1から7のいずれか一項に記載の半導体装置。
- 前記突出部は、多孔質構造を有する、請求項1から8のいずれか一項に記載の半導体装置。
- 前記突出部の高さ寸法が100μm以上である、請求項1から9のいずれか一項に記載の半導体装置。
- 前記パワー半導体素子を封止する封止体をさらに備え、
前記端子は、前記封止体の内部において、前記信号パッドに前記接合材を介して接合されている、請求項1から10のいずれか一項に記載の半導体装置。
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