JP4883684B2 - 絶縁型大電力用半導体装置の製造方法 - Google Patents
絶縁型大電力用半導体装置の製造方法 Download PDFInfo
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- H01L24/34—Strap connectors, e.g. copper straps for grounding power devices; Manufacturing methods related thereto
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- H01L24/40—Structure, shape, material or disposition of the strap connectors after the connecting process of an individual strap connector
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- H01L2224/02—Bonding areas; Manufacturing methods related thereto
- H01L2224/04—Structure, shape, material or disposition of the bonding areas prior to the connecting process
- H01L2224/06—Structure, shape, material or disposition of the bonding areas prior to the connecting process of a plurality of bonding areas
- H01L2224/0601—Structure
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- H01L2224/34—Strap connectors, e.g. copper straps for grounding power devices; Manufacturing methods related thereto
- H01L2224/39—Structure, shape, material or disposition of the strap connectors after the connecting process
- H01L2224/40—Structure, shape, material or disposition of the strap connectors after the connecting process of an individual strap connector
- H01L2224/401—Disposition
- H01L2224/40151—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
- H01L2224/40221—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
- H01L2224/40225—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being non-metallic, e.g. insulating substrate with or without metallisation
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- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/49—Structure, shape, material or disposition of the wire connectors after the connecting process of a plurality of wire connectors
- H01L2224/491—Disposition
- H01L2224/4911—Disposition the connectors being bonded to at least one common bonding area, e.g. daisy chain
- H01L2224/49111—Disposition the connectors being bonded to at least one common bonding area, e.g. daisy chain the connectors connecting two common bonding areas, e.g. Litz or braid wires
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- H01L2224/83—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected using a layer connector
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- H01L2224/85—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected using a wire connector
- H01L2224/85909—Post-treatment of the connector or wire bonding area
- H01L2224/8592—Applying permanent coating, e.g. protective coating
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- H01L2924/11—Device type
- H01L2924/13—Discrete devices, e.g. 3 terminal devices
- H01L2924/1304—Transistor
- H01L2924/1305—Bipolar Junction Transistor [BJT]
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Description
前記載置部の前側面から前側に延びている第1タイバー部と、前記載置部の後側面から後側に延びている第2タイバー部と、前記載置部の左側面または右側面から左側または右側に延びている第3タイバー部とを有し、前記載置部の厚さが前記第1タイバー部、前記第2タイバー部、および、前記第3タイバー部の厚さよりも厚いリードフレームを供給する工程と、
前記リードフレームをPPS樹脂によってインサート成形することにより、前記載置部の下面よりも下側にPPS樹脂を配置する第1成形工程と、
前記大電力用半導体素子を流れる大電流が前記載置部を流れるように、前記載置部の上面と前記大電力用半導体素子の下面の電極とを電気的に接続する工程と、
前記第1タイバー部、前記第2タイバー部および前記第3タイバー部のうち、PPS樹脂から突出している部分を切断する工程と、
前記載置部の下面の下側に配置されたPPS樹脂よりも熱伝導率の低い樹脂を成形することにより、前記第1タイバー部、前記第2タイバー部および前記第3タイバー部の切断面を封止する第2成形工程と、
前記載置部の下面の下側に配置されたPPS樹脂の下面に放熱フィンを取り付ける工程とを含むことを特徴とする絶縁型大電力用半導体装置の製造方法が提供される。
1a 載置部
1a1 上面
1a2 前側面
1a3 後側面
1a4 左側面
1a5 右側面
1a6 下面
1c フランジ部
1e1 タイバー部
1e2 タイバー部
1e3 タイバー部
1e4 タイバー部
1g フレーム部
2 第1PPS樹脂成形体
2a 上面
2b 前側面
2c 後側面
2d 左側面
2e 右側面
2f 下面
2g ねじ穴
3 大電力用半導体素子
4 第1外部導出端子
5 第2外部導出端子
22 第2PPS樹脂成形体
852 放熱フィン
Claims (7)
- 大電力用半導体素子を載置するための載置部を有するリードフレームをPPS樹脂によってインサート成形する絶縁型大電力用半導体装置の製造方法において、
前記載置部の前側面から前側に延びている第1タイバー部と、前記載置部の後側面から後側に延びている第2タイバー部と、前記載置部の左側面または右側面から左側または右側に延びている第3タイバー部とを有し、前記載置部の厚さが前記第1タイバー部、前記第2タイバー部、および、前記第3タイバー部の厚さよりも厚いリードフレームを供給する工程と、
前記リードフレームをPPS樹脂によってインサート成形することにより、前記載置部の下面よりも下側にPPS樹脂を配置する第1成形工程と、
前記大電力用半導体素子を流れる大電流が前記載置部を流れるように、前記載置部の上面と前記大電力用半導体素子の下面の電極とを電気的に接続する工程と、
前記第1タイバー部、前記第2タイバー部および前記第3タイバー部のうち、PPS樹脂から突出している部分を切断する工程と、
前記載置部の下面の下側に配置されたPPS樹脂よりも熱伝導率の低い樹脂を成形することにより、前記第1タイバー部、前記第2タイバー部および前記第3タイバー部の切断面を封止する第2成形工程と、
前記載置部の下面の下側に配置されたPPS樹脂の下面に放熱フィンを取り付ける工程とを含むことを特徴とする絶縁型大電力用半導体装置の製造方法。 - 前記載置部の下面の下側に配置されるPPS樹脂よりも熱伝導率の低いPPS樹脂を成形することにより、前記第1タイバー部、前記第2タイバー部および前記第3タイバー部の切断面を封止することを特徴とする請求項1に記載の絶縁型大電力用半導体装置の製造方法。
- 前記載置部の下面よりも下側に約0.05〜1.0mmの厚さのPPS樹脂層を配置することを特徴とする請求項1又は2に記載の絶縁型大電力用半導体装置の製造方法。
- PPS樹脂の上面が前記第1タイバー部、前記第2タイバー部、および、前記第3タイバー部の上面よりも上側に位置するように、かつ、PPS樹脂の下面が前記第1タイバー部、前記第2タイバー部、および、前記第3タイバー部の下面よりも下側に位置するように、第1成形工程中にPPS樹脂を成形することを特徴とする請求項1に記載の絶縁型大電力用半導体装置の製造方法。
- 2つの外部導出端子を前記リードフレーム上に載置し、第2成形工程中に、PPS樹脂よりも熱伝導率の低い樹脂によって前記2つの外部導出端子の一部を封止すると共に、PPS樹脂よりも熱伝導率の低い樹脂の上面であって、前記2つの外部導出端子の間に溝を形成することを特徴とする請求項1〜4のいずれか一項に記載の絶縁型大電力用半導体装置の製造方法。
- 前記載置部の前側面、後側面、左側面および右側面にフランジ部を形成し、前記第1タイバー部、前記第2タイバー部、および、前記第3タイバー部を前記フランジ部から延ばすことを特徴とする請求項1〜5のいずれか一項に記載の絶縁型大電力用半導体装置の製造方法。
- 前記大電力用半導体素子の表面にゲル材を塗布することを特徴とする請求項1〜6のいずれか一項に記載の絶縁型大電力用半導体装置の製造方法。
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JP5767920B2 (ja) * | 2011-09-14 | 2015-08-26 | 新電元工業株式会社 | 半導体装置 |
JP6201297B2 (ja) * | 2012-11-08 | 2017-09-27 | 三菱マテリアル株式会社 | 銅板付きパワーモジュール用基板及び銅板付きパワーモジュール用基板の製造方法 |
KR102131484B1 (ko) * | 2013-08-26 | 2020-07-07 | 미쓰비시 마테리알 가부시키가이샤 | 접합체 및 파워 모듈용 기판 |
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JPH10163383A (ja) * | 1996-11-29 | 1998-06-19 | Oki Electric Ind Co Ltd | 樹脂封止型半導体装置及びその製造方法 |
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