JP7548086B2 - 半導体装置の製造方法 - Google Patents
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Description
図1は、実施の形態1に係る半導体装置を示す断面図である。複数の半導体チップ1と1つの配線用チップ2が基板3に接合されている。半導体チップ1は、裏面側に裏面電極4を有し、表面側に主電極5と制御電極6を有する。半導体チップ1は、例えばMOSFETである。制御電極6は例えばゲート電極又はケルビンソース電極である。半導体チップ1に温度センス素子又は電流センス素子が内蔵されている場合は、それぞれに対応した制御電極を更に備える。
図13は、実施の形態2に係る半導体装置を示す断面図である。本実施の形態では、配線用チップ2及び接続部材16が無く、制御電極部材14が半導体チップ1の制御電極6に第2の接合材15を介して接合されている。その他の構成は実施の形態1と同様である。
Claims (7)
- 主電極と制御電極を有する半導体チップを基板に接合する工程と、
第1の電極と、第2の電極と、前記第1の電極と前記第2の電極とを接続する配線とを有する配線用チップを前記基板に接合する工程と、
主電極部材を前記主電極に第1の接合材を介して接合する工程と、
制御電極部材を前記第2の電極に第2の接合材を介して接合する工程と、
前記制御電極と前記第1の電極とを接続部材で接続する工程と、
接合された前記半導体チップ、前記基板、前記配線用チップ、前記主電極部材、前記制御電極部材及び前記接続部材を金型に入れ、前記主電極部材及び前記制御電極部材と前記金型との間に設けた緩衝材に前記主電極部材及び前記制御電極部材の先端面を押し付けた状態で前記金型の中に封止材を注入して、前記半導体チップ、前記基板、前記配線用チップ、前記主電極部材、前記制御電極部材及び前記接続部材を前記封止材により封止する工程とを備え、
前記封止材を研削せず、
前記主電極部材及び前記制御電極部材の先端部が前記封止材の上面から突出し、
前記先端部の側面に設けられた前記封止材は、膜厚が前記先端面に向かうほど薄くなるテーパー形状であることを特徴とする半導体装置の製造方法。 - 主電極と制御電極を有する半導体チップを基板に接合する工程と、
主電極部材を前記主電極に第1の接合材を介して接合する工程と、
制御電極部材を前記制御電極に第2の接合材を介して接合する工程と、
接合された前記半導体チップ、前記基板、前記主電極部材及び前記制御電極部材を金型に入れ、前記主電極部材及び前記制御電極部材と前記金型との間に設けた緩衝材に前記主電極部材及び前記制御電極部材の先端面を押し付けた状態で前記金型の中に封止材を注入して、前記半導体チップ、前記基板、前記主電極部材及び前記制御電極部材を前記封止材により封止する工程とを備え、
前記封止材を研削せず、
前記主電極部材及び前記制御電極部材の先端部が前記封止材の上面から突出し、
前記先端部の側面に設けられた前記封止材は、膜厚が前記先端面に向かうほど薄くなるテーパー形状であることを特徴とする半導体装置の製造方法。 - 接合された前記主電極部材の先端面と前記制御電極部材の先端面の高さは異なることを特徴とする請求項1又は2に記載の半導体装置の製造方法。
- 前記主電極部材及び前記制御電極部材の先端面が接触する前記緩衝材の表面が導電性を有することを特徴とする請求項1~3の何れか1項に記載の半導体装置の製造方法。
- 前記緩衝材は、樹脂材料と、前記樹脂材料と前記主電極部材及び前記制御電極部材との間に設けられた導電性薄膜とを有することを特徴とする請求項4に記載の半導体装置の製造方法。
- 前記緩衝材の主たる成分は炭素であることを特徴とする請求項4に記載の半導体装置の製造方法。
- 前記半導体チップをワイドバンドギャップ半導体によって形成することを特徴とする請求項1~6の何れか1項に記載の半導体装置の製造方法。
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| JP2021045845A JP7548086B2 (ja) | 2021-03-19 | 2021-03-19 | 半導体装置の製造方法 |
| US17/501,598 US11887933B2 (en) | 2021-03-19 | 2021-10-14 | Manufacturing method of semiconductor device |
| DE102021132952.3A DE102021132952A1 (de) | 2021-03-19 | 2021-12-14 | Herstellungsverfahren einer Halbleitervorrichtung |
| CN202510766729.8A CN120600643A (zh) | 2021-03-19 | 2022-03-14 | 半导体装置的制造方法 |
| CN202210246261.6A CN115116865B (zh) | 2021-03-19 | 2022-03-14 | 半导体装置的制造方法 |
| JP2024141026A JP7758115B2 (ja) | 2021-03-19 | 2024-08-22 | 半導体装置の製造方法 |
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| WO2025158573A1 (ja) * | 2024-01-24 | 2025-07-31 | 三菱電機株式会社 | 半導体装置 |
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