JP5467799B2 - 半導体装置 - Google Patents
半導体装置 Download PDFInfo
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- JP5467799B2 JP5467799B2 JP2009117689A JP2009117689A JP5467799B2 JP 5467799 B2 JP5467799 B2 JP 5467799B2 JP 2009117689 A JP2009117689 A JP 2009117689A JP 2009117689 A JP2009117689 A JP 2009117689A JP 5467799 B2 JP5467799 B2 JP 5467799B2
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Description
前記封止体によって少なくとも一部が覆われ、かつそれぞれが第1電極を構成する第1および第2金属ベース板と、
下面に第1電極を有すると共に、上面に第2電極パッドと制御電極パッドとを有し、前記下面が導電性接着剤を介して前記第1金属ベース板の上面に固定された第1半導体チップと、
下面に第1電極を有すると共に、上面に第2電極パッドと制御電極パッドとを有し、前記下面が導電性接着剤を介して前記第2金属ベース板の上面に固定された第2半導体チップと、
それぞれの一端が前記封止体によって覆われ、他端が前記封止体の一側面から突出する第1および第2リードと、
前記第1半導体チップの前記第2電極パッドと前記第1リードの前記一端とを電気的に接続する第1導電材料と、
前記第2半導体チップの前記第2電極パッドと前記第2リードの前記一端とを電気的に接続する第2導電材料と、
を有し、
前記第1リードの前記一端は、前記第1金属ベース板の上面よりも上方に位置し、
前記第2リードの前記一端は、前記第2金属ベース板の上面よりも上方に位置しているものである。
本実施の形態では、モータ制御用のインバータ回路に用いられるスイッチモジュールに適用した半導体装置について説明する。
同様の理由により、リード3(G2)の一端部もダイパッド部(TAB2)の上面よりも上方に配置されているので、半導体チップ5Bの周囲に導電性接着剤4が多く流れ出た場合でもAlワイヤ10との短絡を防止することができる。
図24は、本実施の形態の半導体パッケージの外観を示す平面図、図25は、半導体パッケージの裏面(放熱板取り付け面)を示す平面図、図26は、半導体パッケージの側面図、図27は、半導体パッケージの内部構造を示す平面図、図28は、図27のE−E線に沿った半導体パッケージの断面図である。
2A、2B 封止体
3 リード
4 導電性接着剤
5A、5B、5C 半導体チップ
6 エミッタパッド
7 ゲートパッド
8A、8B ダイオードチップ
9 アノードパッド
10、11 Alワイヤ
12 貫通孔
13、14 長溝
15 薄肉部
16 タイバー
17 フレーム
18、19 貫通孔
20 配線基板
21 放熱板
22 ネジ
23 絶縁板
24 タイバー
25 フレーム
26 モールド樹脂
27 ポッティング樹脂
28 Alリボン
29 Cuクリップ
30 p+型シリコン基板
31 n+型バッファー層
32 n−型エピタキシャル層
33 p+型拡散層
34 n+型拡散層
35 ゲート絶縁膜
36 ゲート電極
37 コレクタ電極
38 エミッタ電極
39 表面保護膜
40 n+型シリコン基板
41 n−型エピタキシャル層
42 p+型拡散層
43 アノード電極
44 カソード電極
45 表面保護膜
50 n+型シリコン基板
51 n−型エピタキシャル層
52 p+型拡散層
53 n+型拡散層
54 ゲート電極
55 ソース電極
56 ドレイン電極
57 表面保護膜
LF1、LF2 リードフレーム
TAB1、TAB2、TAB3、TAB4 ダイパッド部(金属ベース板)
Claims (12)
- 絶縁性樹脂からなる封止体と、
前記封止体によってそれぞれの一部が覆われた第1および第2金属ベース板と、
第1面に第1電極を有すると共に、前記第1面に対向する第2面に第2電極パッドと制御電極パッドとを有し、前記第1面が前記第1金属ベース板の上面に固定され、電気的に接続された第1半導体チップと、
第1面に第1電極を有すると共に、前記第1面に対向する第2面に第2電極パッドと制御電極パッドとを有し、前記第1面が前記第2金属ベース板の上面に固定され、電気的に接続された第2半導体チップと、
第1面に第1電極を有し、前記第1面に対向する第2面に第2電極を有し、前記第1面が前記第1金属ベース板の上面に固定され、電気的に接続された第1ダイオードチップと、
それぞれの一端が前記封止体によって覆われ、他端が前記封止体の一側面から突出する第1、第2、第3及び第4リードと、
前記第1半導体チップの前記第2電極パッドと前記第1リードの前記一端とを電気的に接続する第1導電材料と、
前記第2半導体チップの前記第2電極パッドと前記第2リードの前記一端とを電気的に接続する第2導電材料と、
前記第1半導体チップの前記制御電極パッドと前記第3リードの前記一端とを電気的に接続する第3導電材料と、
前記第2半導体チップの前記制御電極パッドと前記第4リードの前記一端とを電気的に接続する第4導電材料と、
前記第1ダイオードチップの第2電極と前記第1半導体チップの第2電極パッドとを電気的に接続する第5導電材料と、
を有し、
前記第1リードの前記一端は、前記第1金属ベース板の上面よりも上方に位置し、
前記第2リードの前記一端は、前記第2金属ベース板の上面よりも上方に位置し、
前記第1導電材料、前記第3導電材料および前記第5導電材料はワイヤからなり、前記第1導電材料および前記第5導電材料のワイヤ径は前記第3導電材料のワイヤ径よりも大であり、
平面視で前記第1半導体チップの最外周部と前記第1導電材料とが交差する位置において、断面視で前記第1導電材料は前記第1半導体チップの最外周から100μm以上離れており、
平面視で前記第5導電材料が前記第1ダイオードチップの最外周と交差する位置において、断面視で前記第5導電材料は前記第1ダイオードチップの最外周から100μm以上離れていることを特徴とする半導体装置。 - 前記第2導電材料と前記第4導電材料とはワイヤからなり、前記第2導電材料のワイヤ径は前記第4導電材料のワイヤ径よりも大であることを特徴とする請求項1記載の半導体装置。
- 平面視で前記第2半導体チップの最外周部と前記第2導電材料とが交差する位置において、断面視で前記第2導電材料は前記第2半導体チップの最外周から100μm以上離れていることを特徴とする請求項2記載の半導体装置。
- 更に、第1面に第1電極を有し、前記第1面に対向する第2面に第2電極を有し、前記第1面が前記第2金属ベース板の上面に固定され、電気的に接続された第2ダイオードチップと、
前記第2ダイオードチップの第2電極と前記第2半導体チップの第2電極パッドとを電気的に接続する第6導電材料と、
を有し、前記第6導電材料が前記第2ダイオードチップの最外周と交差する位置において、前記第6導電材料は前記第2ダイオードチップの最外周から100μm以上離れていることを特徴とする請求項3記載の半導体装置。 - 前記第1半導体チップは、前記第1ダイオードチップよりも前記第1リードの前記一端に近いことを特徴とする請求項4記載の半導体装置。
- 前記第2半導体チップは、前記第2ダイオードチップよりも前記第2リードの前記一端に近いことを特徴とする請求項5記載の半導体装置。
- 前記第1半導体チップの第2電極パッドの面積は、前記第1半導体チップの制御電極パッドの面積よりも大であることを特徴とする請求項2記載の半導体装置。
- 前記第2半導体チップの第2電極パッドの面積は、前記第2半導体チップの制御電極パッドの面積よりも大であることを特徴とする請求項7記載の半導体装置。
- 前記第1から前記第4導電材料はAlワイヤからなることを特徴とする請求項2記載の半導体装置。
- 一端が前記第1金属ベース板と電気的に接続され、他端が前記封止体の前記一側面から突出する第5リードを有し、
前記第1リードは、前記第2金属ベース板と電気的に接続され、
平面視において、前記第1リードは前記第3および第4リードの間に配置され、前記第2リードは前記第1および第4リードの間に配置され、前記第5リードは前記第1および第3リードの間に配置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。 - 前記第1リードは外部に電圧を出力する出力端子であり、前記第5リードは外部から電源電圧が供給される電源端子であり、前記第2リードは外部から接地電圧が供給されるグランド端子であることを特徴とする請求項10記載の半導体装置。
- 前記第1および第2半導体チップはそれぞれIGBTを備え、
前記第1および第2半導体チップの第1電極は、前記IGBTのコレクタ電極であり、前記第1および第2半導体チップの第2電極は、前記IGBTのエミッタ電極であることを特徴とする請求項11記載の半導体装置。
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