JP7023339B1 - 半導体装置 - Google Patents
半導体装置 Download PDFInfo
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Abstract
Description
以下に、実施の形態1による半導体装置について、図面に基づいて説明する。図1は、実施の形態1による半導体装置の概略構成を示す側面断面図、図2及び図3は、実施の形態1による半導体装置の厚み規制突起及び位置決め突起を説明する図であり、図2は、図1中、点線の円で示す部分の部分拡大断面図、図3は、図1中、A-Aで示す接合領域の部分を矢印方向から見た断面図である。なお、各図において、同一、相当部分には同一符号を付している。
図5は、実施の形態2による半導体装置の概略構成を示す側面断面図、図6及び図7は、実施の形態2による半導体装置の厚み規制兼位置決め突起を説明する図であり、図6は、図5中、点線の円で示す部分の部分拡大断面図、図7は、図5中、B-Bで示す接合領域の部分を矢印方向から見た断面図である。
Claims (15)
- 金属部材の一方の面に実装された半導体素子と、
前記金属部材の他方の面に絶縁シートを介して設けられた金属プレートと、
前記半導体素子または前記金属部材に接続された主電極配線と、
前記半導体素子、前記金属部材、前記絶縁シート、及び前記金属プレートを前記金属プレートの一面を露出させて封止している封止樹脂と、を含む半導体モジュールを備え、
前記封止樹脂の底部から露出している前記金属プレートと冷却器の冷却面とがはんだを介して接合された半導体装置であって、
前記主電極配線の一端部は前記封止樹脂の側面から突出しており、
前記封止樹脂の前記主電極配線が突出している前記側面に、前記半導体モジュールと前記冷却器との位置決めを行う位置決め突起が形成されるとともに、
前記封止樹脂の前記側面または前記底部に、前記冷却面と前記半導体モジュールとの距離を一定に保持し前記はんだの厚みを規制する厚み規制突起が形成されていることを特徴とする半導体装置。 - 前記位置決め突起は、前記封止樹脂の前記側面から垂直方向に突出している側面突起と、前記側面突起から前記冷却器の方向へ突出している先端突起とを有し、前記先端突起は前記冷却器の前記冷却面に形成された凹部に挿入されていることを特徴とする請求項1記載の半導体装置。
- 前記厚み規制突起は、前記封止樹脂の前記底部の少なくとも三箇所に形成されていることを特徴とする請求項1または請求項2に記載の半導体装置。
- 前記厚み規制突起は、前記封止樹脂の前記底部の周縁部に形成されていることを特徴とする請求項1または請求項2に記載の半導体装置。
- 前記厚み規制突起は、前記封止樹脂の前記底部の前記主電極配線に対応する箇所に、前記主電極配線の幅以上の長さに形成されていることを特徴とする請求項1または請求項2に記載の半導体装置。
- 前記厚み規制突起と前記はんだとの間に空間を有することを特徴とする請求項1から請求項5のいずれか一項に記載の半導体装置。
- 金属部材の一方の面に実装された半導体素子と、
前記金属部材の他方の面に絶縁シートを介して設けられた金属プレートと、
前記半導体素子または前記金属部材に接続された主電極配線と、
前記半導体素子、前記金属部材、前記絶縁シート、及び前記金属プレートを前記金属プレートの一面を露出させて封止している封止樹脂と、を含む半導体モジュールを備え、
前記封止樹脂の底部から露出している前記金属プレートと冷却器の冷却面とがはんだを介して接合された半導体装置であって、
前記主電極配線の一端部は前記封止樹脂の側面から突出しており、
前記封止樹脂の前記主電極配線が突出している前記側面に、前記半導体モジュールと前記冷却器との位置決めを行う位置決め突起が形成され、
前記位置決め突起は、前記冷却面と前記半導体モジュールとの距離を一定に保持し前記はんだの厚みを規制する厚み規制突起を兼ねていることを特徴とする半導体装置。 - 前記位置決め突起は、前記封止樹脂の前記側面から垂直方向に突出している側面突起と、前記側面突起から前記冷却器の方向へ突出している先端突起とを有し、前記側面突起は前記冷却面と前記半導体モジュールとの距離を一定に保持し、前記先端突起は前記冷却器の前記冷却面に形成された凹部に挿入されていることを特徴とする請求項7記載の半導体装置。
- 前記封止樹脂の前記側面または前記底部に、前記位置決め突起とは別に、前記冷却面と前記半導体モジュールとの距離を一定に保持し前記はんだの厚みを規制する厚み規制突起が形成されていることを特徴とする請求項7または請求項8に記載の半導体装置。
- 前記位置決め突起と前記はんだとの間に空間を有することを特徴とする請求項7から請求項9のいずれか一項に記載の半導体装置。
- 前記半導体素子に接続された前記主電極配線の一端部と前記金属部材に接続された前記主電極配線の一端部とが、それぞれ前記封止樹脂の対向する二つの側面から突出しており、
前記位置決め突起は、前記二つの側面のそれぞれに少なくとも一つ形成されていることを特徴とする請求項1から請求項10のいずれか一項に記載の半導体装置。 - 前記はんだは、前記封止樹脂の前記底部から露出している前記金属プレートの全面に接合されていることを特徴とする請求項1から請求項11のいずれか一項に記載の半導体装置。
- 前記金属部材は、逆テーパー形状の側面を有することを特徴とする請求項1から請求項12のいずれか一項に記載の半導体装置。
- 前記金属部材は、側面に切り欠きまたは段差を有することを特徴とする請求項1から請求項12のいずれか一項に記載の半導体装置。
- 前記金属プレートは、逆テーパー形状または中央部が張り出した形状の側面を有することを特徴とする請求項1から請求項14のいずれか一項に記載の半導体装置。
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