JP6791621B2 - 半導体装置 - Google Patents
半導体装置 Download PDFInfo
- Publication number
- JP6791621B2 JP6791621B2 JP2015179483A JP2015179483A JP6791621B2 JP 6791621 B2 JP6791621 B2 JP 6791621B2 JP 2015179483 A JP2015179483 A JP 2015179483A JP 2015179483 A JP2015179483 A JP 2015179483A JP 6791621 B2 JP6791621 B2 JP 6791621B2
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- Japan
- Prior art keywords
- semiconductor chip
- semiconductor
- semiconductor device
- die pad
- conductor pattern
- Prior art date
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Description
本発明の一実施の形態の半導体装置を図面を参照して説明する。
図1は、本発明の一実施の形態である半導体装置PKGの上面図であり、図2〜図4は、半導体装置PKGの平面透視図であり、図5は、半導体装置PKGの下面図(裏面図)であり、図6〜図8は、半導体装置PKGの断面図である。図2には、封止部MRを透視したときの半導体装置PKGの上面側の平面透視図が示されている。また、図3は、図2において、更にワイヤBWを透視(省略)したときの半導体装置PKGの上面側の平面透視図が示されている。また、図4は、図3において、更に半導体チップCP1,CP2を透視(省略)したときの半導体装置PKGの上面側の平面透視図が示されている。図1〜図4では、半導体装置PKGの向きは同じである。なお、図4は、平面図であるが、理解を簡単にするために、ダイパッドDPの薄肉部DP1を、ドットのハッチングを付して示してある。また、図2〜図4では、封止部MRの外周の位置を点線で示してある。また、図1、図2および図5のA−A線の位置での半導体装置PKGの断面が、図6にほぼ対応し、図1、図2および図5のB−B線の位置での半導体装置PKGの断面が、図7にほぼ対応し、図1、図2および図5のC−C線の位置での半導体装置PKGの断面が、図8にほぼ対応している。また、図9は、図2の一部を拡大した部分拡大平面透視図であり、図10は、図6の一部を拡大した部分拡大断面図である。図10においては、ダイパッドDPと、ダイパッドDP上に接合材BD1を介して搭載された半導体チップCP1と、ダイパッドDP上に接合材BD2を介して搭載された半導体チップCP2とが示されているが、ワイヤBW、リードLDおよび封止部MRについては、図示を省略している。
次に、上記図1〜図10に示される半導体装置PKGの製造工程(組立工程)について説明する。図11は、上記図1〜図10に示される半導体装置PKGの製造工程を示すプロセスフロー図である。図12〜図16は、半導体装置PKGの製造工程中の断面図である。なお、図12〜図16には、上記図6に相当する断面が示されている。
次に、図17を参照しながら、半導体装置PKGの回路構成について説明する。図17は、半導体装置PKGの回路図(回路ブロック図)である。
次に、半導体チップCP1の構造について説明する。
図19は、本発明者が検討した第1検討例の半導体装置(半導体パッケージ)PKG101の断面図であり、上記図6に相当する断面図が示されている。
本実施の形態の半導体装置PKGは、ダイパッドDP(チップ搭載部)と、ダイパッドDP上に搭載された半導体チップCP1(第1半導体チップ)および半導体チップCP2(第2半導体チップ)と、半導体チップCP1、半導体チップCP2、およびダイパッドDPの少なくとも一部を封止する封止部MR(封止体)と、を備えている。
次に、本実施の形態の半導体装置PKGの実装構造について説明する。以下では、上記半導体装置PKGを配線基板PB1に実装する場合について説明するが、半導体装置PKGの代わりに、上記第1変形例の半導体装置PKG1または上記第2変形例の半導体装置PKG2を用いることもできる。
本発明者の検討によれば、上記図24〜図26に示される配線基板PB1を用いた場合、次のような現象が生じることが分かった。
配線基板と、前記配線基板の第1主面上に搭載された半導体装置と、を有する電子装置であって、
前記半導体装置は、
第2主面および前記第2主面とは反対側の第3主面を有する、導電性のチップ搭載部と、
前記チップ搭載部の前記第2主面上に搭載された第1半導体チップと、
前記チップ搭載部の前記第2主面上に搭載された第2半導体チップと、
前記第1半導体チップ、前記第2半導体チップ、および前記チップ搭載部の少なくとも一部を封止する封止体と、
を有し、
前記第1半導体チップの動作時の発熱量は、前記第2半導体チップの動作時の発熱量より大きく、
前記半導体装置の前記チップ搭載部の前記第3主面は、前記封止体から露出されており、
前記配線基板は、前記第1主面側に形成されかつ互いに分離された第1電極および第2電極を有し、
前記チップ搭載部の第1部分が、前記第1電極に第1導電性接合層を介して接合され、
前記チップ搭載部の第2部分が、前記第2電極に第2導電性接合層を介して接合され、
前記チップ搭載部の前記第1部分上に前記第1半導体チップが搭載され、
前記チップ搭載部の前記第2部分上に前記第2半導体チップが搭載されている、電子装置。
3 p型の半導体領域
4 n+型の半導体領域
5 p+型の半導体領域
6 溝
7 ゲート絶縁膜
8 ゲート電極
9,11 層間絶縁膜
10,12 プラグ
13 保護膜
14 開口部
BAT 電源
BD1,BD2,BD3,BD3a,BD3b,BD4 接合材
BE 裏面電極
BS 基材層
BW ワイヤ
CLC 制御回路
DH1,DH2,DH3,DH4,DH5,DH6,DH7,DH8 辺
CP1,CP2、CP101,CP102,CP201,CP202 半導体チップ
DP,DP101,DP102,DP201 ダイパッド
DP1 薄肉部
DP2 厚肉部
LD リード
LF リードフレーム
LOD 負荷
M1,M2 配線
M1S,M2S ソース配線
MR 封止部
MRa 上面
MRb 下面
MRc1,MRc2,MRc3,MRc4 側面
OP1,OP2,OP2a,OP2b 開口部
P1,P2 パッド電極
P1S ソース用パッド電極
PB1,PB2,PB2a 配線基板
PE1,PE1a,PE1b 電極
PKG,PKG1,PKG2,PKG101,PKG201 半導体装置
PT1,PT2,PT2a,PT2b,PT3,PT4,PT5 導体パターン
Q1 パワーMOSFET
Q2 センスMOSFET
REG レギュレータ
RS1,RS2 レジスト層
SM1,SM2,SM3,SM4,SM5,SM6,SM7,SM8 側面
TL 吊りリード
VH ビア部
Claims (7)
- チップ搭載部と、
前記チップ搭載部上に搭載され、パワートランジスタを含む第1半導体チップと、
前記チップ搭載部上に搭載され、前記第1半導体チップを制御する第2半導体チップと、
前記チップ搭載部の一部が露出するように、前記第1半導体チップ、前記第2半導体チップ、および前記チップ搭載部を封止する封止体と、
を備える半導体装置であって、
前記チップ搭載部における前記第1半導体チップが搭載されている第1部分の厚さは、前記チップ搭載部における前記第2半導体チップが搭載されている第2部分の厚さより薄く、
前記第1半導体チップは、前記チップ搭載部上に、単層から成る第1接合層を介して搭載され、
前記第2半導体チップは、前記チップ搭載部上に、単層から成る第2接合層を介して搭載され、
前記第1接合層は、導電性の接合材であり、
前記第2接合層は、絶縁性の接合材であり、
前記第1接合層の熱伝導率は、前記第2接合層の熱伝導率より高く、
前記第1接合層の厚さは、前記第2接合層の厚さより薄い、半導体装置。 - 請求項1記載の半導体装置において、
複数のリードと、
複数のワイヤと、
を更に有し、
前記封止体は、前記複数のリードのそれぞれの一部と、前記複数のワイヤとを封止し、
前記複数のワイヤは、前記第1半導体チップの複数の第1パッド電極と前記複数のリードのうちの複数の第1リードとを電気的に接続する複数の第1ワイヤと、前記第2半導体チップの複数の第2パッド電極と前記複数のリードのうちの複数の第2リードとを電気的に接続する複数の第2ワイヤと、を含む、半導体装置。 - 請求項2記載の半導体装置において、
前記第2部分の厚さは、前記複数のリードの厚さと同じである、半導体装置。 - 請求項1記載の半導体装置において、
前記第1半導体チップの厚さは、前記第2半導体チップの厚さより薄い、半導体装置。 - チップ搭載部と、
前記チップ搭載部上に搭載された第1半導体チップと、
前記チップ搭載部上に搭載された第2半導体チップと、
前記チップ搭載部の一部が露出するように、前記第1半導体チップ、前記第2半導体チップ、および前記チップ搭載部を封止する封止体と、
を備える半導体装置であって、
前記第1半導体チップの動作時の発熱量は、前記第2半導体チップの動作時の発熱量より大きく、
前記チップ搭載部における前記第1半導体チップが搭載されている第1部分の厚さは、前記チップ搭載部における前記第2半導体チップが搭載されている第2部分の厚さより薄く、
前記第1半導体チップは、前記チップ搭載部上に、単層から成る第1接合層を介して搭載され、
前記第2半導体チップは、前記チップ搭載部上に、単層から成る第2接合層を介して搭載され、
前記第1接合層は、導電性の接合材であり、
前記第2接合層は、絶縁性の接合材であり、
前記第1接合層の熱伝導率は、前記第2接合層の熱伝導率より高く、
前記第1接合層の厚さは、前記第2接合層の厚さより薄い、半導体装置。 - 請求項5記載の半導体装置において、
複数のリードと、
複数のワイヤと、
を更に有し、
前記封止体は、前記複数のリードのそれぞれの一部と、前記複数のワイヤとを封止し、
前記複数のワイヤは、前記第1半導体チップの複数の第1パッド電極と前記複数のリードのうちの複数の第1リードとを電気的に接続する複数の第1ワイヤと、前記第2半導体チップの複数の第2パッド電極と前記複数のリードのうちの複数の第2リードとを電気的に接続する複数の第2ワイヤと、を含む、半導体装置。 - 請求項6記載の半導体装置において、
前記第2部分の厚さは、前記複数のリードの厚さと同じである、半導体装置。
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JP2018107416A (ja) * | 2016-12-28 | 2018-07-05 | ルネサスエレクトロニクス株式会社 | 半導体装置およびその製造方法 |
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