JP5859906B2 - 半導体装置および半導体装置の製造方法 - Google Patents
半導体装置および半導体装置の製造方法 Download PDFInfo
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- 239000004065 semiconductor Substances 0.000 title claims description 81
- 238000004519 manufacturing process Methods 0.000 title claims description 15
- 230000002093 peripheral effect Effects 0.000 claims description 47
- 239000000758 substrate Substances 0.000 claims description 45
- 229920005989 resin Polymers 0.000 claims description 28
- 239000011347 resin Substances 0.000 claims description 28
- 229920005992 thermoplastic resin Polymers 0.000 claims description 15
- 238000007789 sealing Methods 0.000 claims description 4
- 238000005452 bending Methods 0.000 claims description 3
- 230000007423 decrease Effects 0.000 claims description 3
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- 230000001070 adhesive effect Effects 0.000 description 16
- 229920001296 polysiloxane Polymers 0.000 description 13
- 230000008646 thermal stress Effects 0.000 description 7
- 238000001816 cooling Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 239000004734 Polyphenylene sulfide Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 229920000069 polyphenylene sulfide Polymers 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
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Description
最初に本発明の一実施の形態の半導体装置の構成について説明する。
図7を参照して、本実施の形態の半導体装置の製造方法では、上記の筐体10が準備される。筐体10にはナット31、電極端子32および信号端子33が取付けられている。
図8を参照して、比較例の半導体装置では、基板21の回路21aに半導体素子22が搭載されている。基板21の回路21aおよび半導体素子22はワイヤ23を用いたワイヤボンド接続で結線されている。基板21はその外周部において熱可塑性樹脂からなる筐体10と接着剤40で接着されている。筐体10の内側の空間がシリコーンゲル41で封止されている。筐体10の下面10a側に基板21が配置されている。筐体10の上面10b側にナット31が配置されている。電極端子32はナット31と回路21aとを電気的に接続するように設けられている。信号端子33は回路21aに電気的に接続されている。
Claims (7)
- 一方側に開口する内部空間を有し、前記内部空間を規定する内周面を有する内壁部を有し、かつ熱可塑性樹脂からなる筐体と、
前記筐体の前記内部空間に係合されたコア部とを備え、
前記コア部は、
基板と、
前記基板上に実装される半導体素子と、
前記基板と前記半導体素子とを電気的に接続するワイヤと、
前記基板、前記半導体素子および前記ワイヤを封止するモールド樹脂とを含み、
前記コア部の前記モールド樹脂で形成された側面は凸部を有し、前記凸部が前記内壁部の前記内周面に当接しており、
前記内壁部は前記内周面から突出する突起部を含み、
前記突起部は、前記開口と反対側の前記内周面との間で前記凸部を挟み込むように設けられている、半導体装置。 - 前記熱可塑性樹脂の曲げ弾性係数は、前記モールド樹脂の曲げ弾性係数より小さい値を有している、請求項1に記載の半導体装置。
- 前記凸部は前記コア部の四方の側面に形成されている、請求項1または2に記載の半導体装置。
- 前記筐体は下面から上面に延びるように形成された溝部を含み、
前記溝部は前記筐体の外周端面と前記内壁部との間に設けられている、請求項1〜3のいずれかに記載の半導体装置。 - 前記内壁部は根元部分から先端側に向かって断面積が小さくなるように形成されたテーパ部を含む、請求項1〜4のいずれかに記載の半導体装置。
- 一方側に開口する内部空間を有し、前記内部空間を規定する内周面を有する内壁部を有し、かつ熱可塑性樹脂からなる筐体を準備する工程と、
前記筐体の前記内部空間にコア部を係合する工程とを備え、
前記コア部は、
基板と、
前記基板上に実装される半導体素子と、
前記基板と前記半導体素子とを電気的に接続するワイヤと、
前記基板、前記半導体素子および前記ワイヤを封止するモールド樹脂とを含み、
前記コア部の側面は凸部を有し、前記凸部で前記内壁部の前記内周面に当接し、
前記内壁部は前記内周面から突出する突起部を含み、
前記突起部は、前記開口と反対側の前記内周面との間で前記凸部を挟み込むように設けられている、半導体装置の製造方法。 - 前記内周面に当接する方向において前記内部空間の長さより大きい寸法を有する前記コア部が前記内部空間に係合される、請求項6に記載の半導体装置の製造方法。
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