JP6121692B2 - 半導体装置およびその製造方法 - Google Patents
半導体装置およびその製造方法 Download PDFInfo
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- JP6121692B2 JP6121692B2 JP2012243289A JP2012243289A JP6121692B2 JP 6121692 B2 JP6121692 B2 JP 6121692B2 JP 2012243289 A JP2012243289 A JP 2012243289A JP 2012243289 A JP2012243289 A JP 2012243289A JP 6121692 B2 JP6121692 B2 JP 6121692B2
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- Prior art keywords
- lead
- region
- wire
- plating
- die pad
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- H01L2924/151—Die mounting substrate
- H01L2924/156—Material
- H01L2924/157—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron [B], silicon [Si], germanium [Ge], arsenic [As], antimony [Sb], tellurium [Te] and polonium [Po], and alloys thereof
- H01L2924/15738—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron [B], silicon [Si], germanium [Ge], arsenic [As], antimony [Sb], tellurium [Te] and polonium [Po], and alloys thereof the principal constituent melting at a temperature of greater than or equal to 950 C and less than 1550 C
- H01L2924/1576—Iron [Fe] as principal constituent
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/15—Details of package parts other than the semiconductor or other solid state devices to be connected
- H01L2924/181—Encapsulation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/15—Details of package parts other than the semiconductor or other solid state devices to be connected
- H01L2924/181—Encapsulation
- H01L2924/183—Connection portion, e.g. seal
- H01L2924/18301—Connection portion, e.g. seal being an anchoring portion, i.e. mechanical interlocking between the encapsulation resin and another package part
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- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Geometry (AREA)
- Manufacturing & Machinery (AREA)
- Lead Frames For Integrated Circuits (AREA)
- Wire Bonding (AREA)
- Structures Or Materials For Encapsulating Or Coating Semiconductor Devices Or Solid State Devices (AREA)
Description
図1は実施の形態の半導体装置の構造の一例を示す斜視図、図2は図1の半導体装置の表面側の構造の一例を示す平面図、図3は図1の半導体装置の側面側の構造の一例を示す側面図、図4は図1の半導体装置の裏面側の構造の一例を示す裏面図、図5は図1の半導体装置の構造の一例を封止体を透過して示す平面図である。また、図6は図1のA−A線に沿って切断した構造の一例を示す断面図、図7は図1のB−B線に沿って切断した構造の一例を示す断面図、図8は図1のC−C線に沿って切断した構造の一例を示す断面図、図9は図1のD−D線に沿って切断した構造の一例を示す断面図である。さらに、図10は図1のE−E線に沿って切断した構造の一例を示す断面図、図11は図1のA−A線におけるリード断面構造とめっき構造の一例を示す部分断面図および拡大部分断面図、図12は図1のB−B線におけるリード断面構造とめっき構造の一例を示す部分断面図および拡大部分断面図である。
1a 表面(主面)
1b 裏面
1c 電極パッド
1ca 第1電極パッド
1cb 第2電極パッド
2 半導体チップ
2a 表面(主面)
2b 裏面
2c 電極パッド
3 リードフレーム
3a ダイパッド
3aa 上面
3ab 下面
3ac 第1辺
3ad 第2辺
3ae 第3辺
3af 第4辺
3ag 切り欠き部
3ah,3ai 突起部
3aj 凹部
3aja 突起部
3ak V溝
3am 接合部
3b インナリード
3ba 第1リード
3baa,3bab 中心線
3bb 第2リード
3bba 延在部
3bbb 傾斜部
3bc ステッチ部(ワイヤ接合部)
3bd 第1領域
3be 第2領域
3c アウタリード
3d 吊りリード
3e 放熱板
3f タイバー
4 封止体
4a 裏面
5 ダイボンド材
6 ワイヤ
6a Auワイヤ(第1ワイヤ)
6b Alワイヤ(第2ワイヤ)
7 パッケージ(半導体装置)
8a Niめっき(第2めっき)
8b Agめっき(第1めっき)
9 外装めっき
10,11 マスキングテープ
12 クランパ
13,14 パッケージ(半導体装置)
Claims (9)
- 上面および前記上面と反対側の下面を有するダイパッドと、
主面および前記主面と反対側の裏面を有し、前記主面に複数の電極パッドが形成され、かつ前記裏面が前記ダイパッドの前記上面と対向するように前記ダイパッド上に搭載された半導体チップと、
前記ダイパッドの一辺に対向して配置された複数のリードと、
前記半導体チップの前記複数の電極パッドのうちの第1電極パッドと、前記複数のリードのうちの第1リードとを電気的に接続する第1ワイヤと、
前記第1ワイヤより直径が太く、かつ前記半導体チップの前記複数の電極パッドのうちの第2電極パッドと、前記複数のリードのうちの第2リードとを電気的に接続する第2ワイヤと、
を有し、
前記複数のリードのそれぞれは、前記ダイパッド側の先端にワイヤ接合部を有し、
前記複数のリードのそれぞれの前記ワイヤ接合部は、最表面に第1めっきが施された第1領域と、最表面に前記第1めっきと異なる第2めっきが施された第2領域とを有し、
前記第1リードの前記ワイヤ接合部の前記第1領域は、前記第1ワイヤと電気的に接続され、
前記第2リードの前記ワイヤ接合部の前記第2領域は、前記第2ワイヤと電気的に接続され、
前記第1ワイヤは、Auを主成分とする金属からなり、
前記第2ワイヤは、Alを主成分とする金属からなり、
前記第1領域はAgを主成分とする金属からなる前記第1めっきの最表面であり、
前記第2領域はNiを主成分とする金属からなる前記第2めっきの最表面であり、
前記ワイヤ接合部における前記第2領域は、前記ダイパッド側に配置され、前記第1領域は、前記第2領域より前記ダイパッドから離れた位置に配置されており、
前記第2リードの前記ワイヤ接合部の前記第2領域は、前記第1リードの前記ワイヤ接合部の前記第2領域より前記ダイパッドに近づく方向に延びた延在部を有しており、
前記第2リードの前記第2領域の平面視の面積は、前記第1リードの前記第2領域の平面視の面積より大きく、
前記第1領域は、断面視において前記第1めっきと前記第2めっきとが積層されており、かつ前記第1めっきの下層に前記第2めっきが配置されている半導体装置。 - 請求項1に記載の半導体装置において、
前記第1リードの前記第2領域の平面視の面積は、前記第1リードの前記第1領域の平面視の面積より大きく、
前記第2リードの前記第2領域の平面視の面積は、前記第2リードの前記第1領域の平面視の面積より大きい半導体装置。 - 請求項2に記載の半導体装置において、
前記第2めっきは、前記第1領域と前記第2領域とに亘って配置されている半導体装置。 - 請求項3に記載の半導体装置において、
前記第1リードの前記ワイヤ接合部の前記第2領域は、前記複数のリードと対向する前記ダイパッドの前記一辺が延在する第1方向に沿って溝が形成されており、
前記第2リードの前記ワイヤ接合部の前記第2領域には、前記第1方向に沿った溝を有していない半導体装置。 - 請求項1に記載の半導体装置において、
前記第1リードの前記ワイヤ接合部の前記第2領域は、前記複数のリードと対向する前記ダイパッドの前記一辺が延在する第1方向に沿って溝が形成されており、
前記第2リードの前記ワイヤ接合部の前記第2領域には、前記第1方向に沿った溝を有していない半導体装置。 - 請求項1に記載の半導体装置において、
前記第2リードの前記ワイヤ接合部の平面視の面積は、前記第1リードの前記ワイヤ接合部の平面視の面積より大きい半導体装置。 - 請求項6に記載の半導体装置において、
前記第1リードの前記ワイヤ接合部の前記第2領域の平面視の面積は、前記第1リードの前記ワイヤ接合部の前記第1領域の平面視の面積より大きい半導体装置。 - 請求項6に記載の半導体装置において、
前記第2リードの前記ワイヤ接合部の前記第2領域の平面視の面積は、前記第2リードの前記ワイヤ接合部の前記第1領域の平面視の面積より大きい半導体装置。 - 請求項1に記載の半導体装置において、
前記第1および第2ワイヤ、前記ダイパッドの一部、前記半導体チップ、および前記複数のリードの一部を樹脂で封止する封止体を有し、
前記封止体は、前記ダイパッドの前記一辺に対向する側面を有し、
前記側面より前記複数のリードのそれぞれの一部が露出しており、
前記第2リードの長さは、前記一辺の延在方向に直交する方向において前記第1リードの長さより長い半導体装置。
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CN201310538497.8A CN103811452B (zh) | 2012-11-05 | 2013-11-04 | 半导体器件及其制造方法 |
US14/829,422 US9240368B2 (en) | 2012-11-05 | 2015-08-18 | Semiconductor device and method of manufacturing the same |
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US9349675B2 (en) | 2016-05-24 |
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US20150357264A1 (en) | 2015-12-10 |
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