JPWO2011155165A1 - 樹脂封止型半導体装置及びその製造方法 - Google Patents
樹脂封止型半導体装置及びその製造方法 Download PDFInfo
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Abstract
Description
本発明の第1の実施形態について、図1〜図5を参照しながら説明する。
以下、本実施形態に係る樹脂封止型半導体装置の製造方法について、図6〜図13を参照しながら説明する。
以下、本発明の第2の実施形態に係る樹脂封止型半導体装置について、図14及び図15を参照しながら説明する。なお、第2の実施形態において、前述の第1の実施形態と同一の構成部材には同一の符号を付すことにより、説明を簡略化している。
以下、本発明の第3の実施形態に係る樹脂封止型半導体装置について、図16〜図18を参照しながら説明する。なお、第3の実施形態において、前述の第1及び第2の実施形態と同一の構成部材には同一の符号を付すことにより、説明を簡略化している。
2 放熱板
3 第1リードフレーム
3A 第1ダイパッド部
3B GND端子リード
3c 凸部
3d 凸部
4 制御素子
5 第2リードフレーム
5A 第2ダイパッド部
6 外装体
6A 封止樹脂材
8 ろう材
10 絶縁シート(絶縁部材)
12 下金型
13 上金型
14 第1金型挿入ピン
15 第2金型挿入ピン
16 第3金型挿入ピン
17 第4金型挿入ピン
21 パワー素子用中継リード
21a 凸部
22 制御素子用中継リード
22a 孔部
23 接合部
24 接合部
31 ワイヤ
32 ワイヤ
41 突出部
41a 孔部
41b 孔部
Claims (19)
- 第1素子及び第2素子と、
上面に前記第1素子を保持する第1ダイパッド部及び複数の第1リードを有する第1リードフレームと、
上面に前記第2素子を保持する第2ダイパッド部及び複数の第2リードを有する第2リードフレームと、
前記第1素子、第1ダイパッド部及び前記第1リードの少なくとも一部、並びに前記第2素子、第2ダイパッド部及び前記第2リードの少なくとも一部を封止する樹脂材からなる外装体とを備え、
前記第1リードと、前記第2リードとは、前記外装体の内部において、第1接合部で直接に接合して電気的に接続された樹脂封止型半導体装置。 - 請求項1において、
前記第1リードと前記第2リードとをカシメ接合して前記第1接合部が形成された樹脂封止型半導体装置。 - 請求項1又は2において、
前記第2ダイパッド部の下面は、前記第1素子の上面よりも高く配置され、
前記第1ダイパッド部の少なくとも一部と前記第2ダイパッド部の少なくとも一部とは、平面視で互いに重なる樹脂封止型半導体装置。 - 請求項1〜3のいずれか1項において、
前記第1孔部は、前記第2素子を保持する面とは反対側の面から打ち抜いて形成された樹脂封止型半導体装置。 - 請求項1〜4のいずれか1項において、
前記第1素子の少なくとも一部と前記第2素子の少なくとも一部とは、平面視で互いに重なるように配置されている樹脂封止型半導体装置。 - 請求項1〜5のいずれか1項において、
下面が前記外装体から露出すると共に、前記第1リードフレームの下面に絶縁部材を介在して設けられた放熱板をさらに備えた樹脂封止型半導体装置。 - 請求項1〜6のいずれか1項において、
前記第1接合部は、前記第1リードに形成された凸部が、前記第2リードに形成された孔部に嵌合され、且つ前記凸部の頂面が前記孔部の周囲に拡がるように形成された樹脂封止型半導体装置。 - 請求項1〜7のいずれか1項において、
前記第1リードフレームの厚さは、前記第2リードフレームの厚さよりも厚い樹脂封止型半導体装置。 - 請求項1〜8のいずれか1項において、
前記第2素子を保持するための前記第2ダイパッド部の周辺部に貫通孔が形成されている樹脂封止型半導体装置。 - 請求項1〜9のいずれか1項において、
前記第2ダイパッド部の少なくとも下面にメッキ層が形成された樹脂封止型半導体装置。 - 請求項10において、
前記メッキ層は磁性材料からなる樹脂封止型半導体装置。 - 請求項1〜11のいずれか1項において、
前記第2リードフレームは、前記第2ダイパッド部の側面から延びる突出部を有し、
前記第2リードフレームの突出部と前記第1ダイパッド部とは、前記外装体の内部において、第2接合部で直接に接合して電気的に接続された樹脂封止型半導体装置。 - 請求項1〜11のいずれか1項において、
前記第2リードフレームは、前記第2ダイパッド部の側面から延びる突出部を有し、
前記第2リードフレームの突出部と前記第1リードとは、前記外装体の内部において、第3接合部で直接に接合して電気的に接続された樹脂封止型半導体装置。 - 予め、第1リードフレームにおける複数の第1リードのうちの1つのリードに第1凸部を形成すると共に第2リードフレームにおける複数の第2リードのうちの1つのリードに第1孔部を形成した後、
下金型に前記第1リードフレームを載置し、
前記第1凸部が前記第1孔部に嵌入するように、前記第1リードフレームに前記第2リードフレームを載置し、
上金型に設けられた挿入ピンにより、前記第1孔部に嵌入された前記第1凸部に加重を印加して、前記第1リードと前記第2リードとを直接に接合し、
前記下金型と前記上金型との間に封止樹脂材を注入することにより、前記封止樹脂材からなる外装体を形成する樹脂封止型半導体装置の製造方法。 - 請求項14において、
前記第1凸部を押しつぶすことにより、前記第1リードと前記第2リードとをカシメ接合する樹脂封止型半導体装置の製造方法。 - 請求項14又は15において、
第2素子を保持する前記第2リードの面と反対側の面から打ち抜いて前記第1孔部を形成する樹脂封止型半導体装置の製造方法。 - 請求項14〜15のいずれか1項において、
前記下金型に前記第1リードフレームを載置する前に、前記下金型に金属からなる放熱板を載置し、
前記下金型に前記第1リードフレームを載置する際に、前記第1リードフレームを、前記放熱板の上に絶縁部材を介在させて載置する樹脂封止型半導体装置の製造方法。 - 請求項14〜17のいずれか1項において、
予め、第2素子を保持する前記第2リードの第2ダイパッド部の周辺部に第2孔部を形成すると共に、前記第1素子を保持する前記第1リードの第1ダイパッド部の周辺部に第2凸部を形成した後、
前記第1リードフレームに前記第2リードフレームを載置する際に、前記第1リードに形成された前記第1凸部及び第2凸部が、前記第2リードに形成された前記第1孔部及び第2孔部にそれぞれ陥入するように前記第2リードフレームを載置し、
前記上金型に設けられた複数の挿入ピンにより、前記第1孔部及び第2孔部にそれぞれ嵌入された前記第1凸部及び第2凸部にそれぞれ加重を印加して、前記第1凸部を前記第1孔部に接合すると共に、前記第2凸部を前記第2孔部に接合する樹脂封止型半導体装置の製造方法。 - 請求項18において、
前記第1リードに前記第1凸部と前記第2凸部とを同時に形成し、前記第2リードに前記第1孔部と前記第2孔部とを同時に形成する樹脂封止型半導体装置の製造方法。
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