JP6420617B2 - 半導体装置 - Google Patents
半導体装置 Download PDFInfo
- Publication number
- JP6420617B2 JP6420617B2 JP2014202416A JP2014202416A JP6420617B2 JP 6420617 B2 JP6420617 B2 JP 6420617B2 JP 2014202416 A JP2014202416 A JP 2014202416A JP 2014202416 A JP2014202416 A JP 2014202416A JP 6420617 B2 JP6420617 B2 JP 6420617B2
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- Prior art keywords
- semiconductor chip
- pad
- wiring
- pad electrode
- semiconductor
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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。なお、図1〜図4では、半導体装置PKGの向きは同じである。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る。また、図3においては、半導体チップCP1の辺SD3の延長線ESを二点鎖線で示してある。
次に、上記図1〜図9に示される半導体装置PKGの製造工程について説明する。図12は、上記図1〜図9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。また、図13〜図18は、半導体装置PKGの製造工程中の断面図である。なお、図13〜図18には、上記図6に相当する断面が示されている。
次に、図19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19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31は、本発明者が検討した検討例の半導体装置PKG101の平面透視図であり、本実施の形態の上記図2に相当するものである。
図33は、本実施の形態の半導体装置PKGの説明図であり、上記図2において、半導体チップCP2のパッド電極P2aと半導体チップCP1のパッド電極P1aとを接続するワイヤBW(すなわちワイヤBW1)と、半導体チップCP1のパッド電極P1bとリードLDとを接続するワイヤBW(すなわちワイヤBW2)とを残し、他のワイヤBWの図示を省略したものに対応している。図34は、図33の一部を拡大して示した部分拡大平面図である。ここで、半導体装置PKGが有する複数のリードLDのうち、ワイヤBW2を介して半導体チップCP1のパッド電極P1bと電気的に接続されたリードLDを、符号LD1を付してリードLD1と称することとする。図34には、各リードLD1の先端部も示されているが、リードLD1以外のリードLDの図示は省略してある。
次に、本実施の形態の半導体装置PKGの変形例について説明する。
(a)第1パッド、第2パッド、および前記第1パッドと前記第2パッドとを電気的に接続する第1配線を有する第1半導体チップと、第3パッドを有する第2半導体チップとを、チップ搭載部上に並んで配置する工程、
(b)前記第2半導体チップの前記第3パッドと前記第1半導体チップの前記第1パッドとを第1ワイヤを介して電気的に接続し、前記第1半導体チップの前記第2パッドと第1リードとを第2ワイヤを介して電気的に接続する工程、
(c)前記第1および第2半導体チップ、前記第1リードの一部、および前記第1および第2ワイヤを封止する封止体を形成する工程、
を有し、
前記第1リードと前記第1半導体チップとの間の距離は、前記第1リードと前記第2半導体チップとの間の距離よりも小さく、
前記第1パッド、前記第2パッドおよび前記第1配線は、前記第1半導体チップ内に形成されているいずれの回路とも電気的に接続されていない、半導体装置の製造方法。
付記1の半導体装置の製造方法において、
前記第1半導体チップは、裏面電極を有し、
前記(a)工程では、前記第1半導体チップの前記裏面電極が、導電性の第1接合材を介して前記チップ搭載部に接合され、前記第2半導体チップの裏面が、絶縁性の第2接合材を介して前記チップ搭載部に接合される、半導体装置の製造方法。
付記2の半導体装置の製造方法において、
前記(a)工程では、前記第1半導体チップの前記裏面電極を前記第1接合材を介して前記チップ搭載部に接合した後で、前記第2半導体チップの裏面を前記第2接合材を介して前記チップ搭載部に接合する、半導体装置の製造方法。
付記3の半導体装置の製造方法において、
前記第1半導体チップは、パワートランジスタと、前記パワートランジスタを制御する制御回路とを含み、
前記第2半導体チップは、前記第1半導体チップを制御するための半導体チップである、半導体装置の製造方法。
2 フィールド絶縁膜
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 接合材
BE 裏面電極
BW,BW1,BW2,BW3 ワイヤ
CLC 制御回路
CP1,CP2,CP101 半導体チップ
DP ダイパッド
DP1,DP2,DP3,DP4 辺
ES 延長線
LD,LD1 リード
LF リードフレーム
LOD 負荷
M1,M2,M1A,M2A 配線
M1S1,M1S2,M2S1,M2S2 ソース配線
MR 封止部
MRa 上面
MRb 下面
MRc1,MRc2,MRc3,MRc4 側面
NH,NH1 内部配線
P1,P1a,P1b,P1c,P2,P2a,P2c パッド電極
P1a1,P1a2,P1a3,P1a4,P1a5,P1a6 パッド電極
P1b1,P1b2,P1b3,P1b4,P1b5,P1b6 パッド電極
P1S ソース用パッド電極
PKG,PKG1,PKG101 半導体装置
Q1 パワーMOSFET
Q2 センスMOSFET
REG レギュレータ
RG1 パワーMOSFET形成領域
RG2 センスMOSFET形成領域
RG3 領域
RG4 制御回路形成領域
SD1,SD2,SD3,SD4,SD5,SD6,SD7,SD8 辺
SR シールリング
SR1,SR1a,SR2,SR2a 金属パターン
TE1,TE2,TE3,TE4,TE5 端子
TL 吊りリード
YG 矢印
Claims (9)
- 第1半導体チップと、
第2半導体チップと、
複数のリードと、
複数のワイヤと、
前記第1および第2半導体チップ、前記複数のリードのそれぞれの一部、および前記複数のワイヤ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および第2半導体チップを搭載するチップ搭載部を更に有し、
前記第1半導体チップと前記第2半導体チップとは、前記チップ搭載部上に並んで配置され、
前記第1半導体チップは、第1パッド、第2パッド、および前記第1パッドと前記第2パッドとを電気的に接続する第1配線を有し、
前記第2半導体チップは、第3パッドを有し、
前記第1パッドは、前記第1半導体チップの主面において、前記第2半導体チップと対向する第1の辺側に配置され、
前記第3パッドは、前記第2半導体チップの主面において、前記第1半導体チップと対向する第2の辺側に配置され、
前記第2半導体チップの前記第3パッドと、前記第1半導体チップの前記第1パッドとは、前記複数のワイヤのうちの第1ワイヤを介して電気的に接続され、
前記第1半導体チップの前記第2パッドは、前記複数のリードのうちの第1リードと、前記複数のワイヤのうちの第2ワイヤを介して電気的に接続され、
前記第1リードと前記第1半導体チップとの間の距離は、前記第1リードと前記第2半導体チップとの間の距離よりも小さく、
前記第1パッド、前記第2パッドおよび前記第1配線は、前記第1半導体チップ内に形成されているいずれの回路とも電気的に接続されておらず、
前記第1配線は、前記第1半導体チップの外周に沿って形成されており、
前記第1配線は、第3配線と、前記第3配線よりも下層の第4配線とを含み、
前記第3配線の厚みは、前記第4配線の厚みよりも大きく、
前記第4配線の幅は、前記第3配線の幅よりも大きく、
前記第3配線は、前記第1パッドまたは前記第2パッドと同層に形成されている、半導体装置。 - 請求項1記載の半導体装置において、
前記封止体は、前記チップ搭載部の一部を封止し、
前記複数のリードは、前記チップ搭載部の周囲に配置されている、半導体装置。 - 請求項2記載の半導体装置において、
前記第1半導体チップは、複数の回路を含み、
前記第2半導体チップは、前記第1半導体チップを制御するための半導体チップである、半導体装置。 - 請求項2記載の半導体装置において、
前記第1半導体チップは、パワートランジスタと、前記パワートランジスタを制御する制御回路とを含み、
前記第2半導体チップは、前記第1半導体チップを制御する、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半導体チップは裏面電極を有し、
前記第1半導体チップの前記裏面電極が、導電性の第1接合材を介して前記チップ搭載部に接合され、
前記第2半導体チップの裏面が、絶縁性の第2接合材を介して前記チップ搭載部に接合されている、半導体装置。 - 請求項1記載の半導体装置において、
前記第2パッドは、前記第1半導体チップの主面において、前記第1の辺以外の第3の辺側に配置されている、半導体装置。 - 請求項6記載の半導体装置において、
前記第1リードは、前記封止体において、前記第1半導体チップの前記第3の辺に沿った第1の側面側に配置されている、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半導体チップは、第4パッドを更に有し、
前記第2半導体チップは第5パッドを更に有し、
前記第2半導体チップの前記第5パッドと、前記第1半導体チップの前記第4パッドとは、前記複数のワイヤのうちの第3ワイヤを介して電気的に接続され、
前記第1半導体チップの前記第4パッドは、前記第1半導体チップ内に形成された第2配線を介して、前記第1半導体チップ内の回路に電気的に接続されている、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半導体チップには、シールリングが形成されており、
前記第1配線は、前記第1半導体チップにおいて、前記シールリングの内側に、前記シールリングに沿って形成されている、半導体装置。
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TW104126418A TWI670805B (zh) | 2014-09-30 | 2015-08-13 | 半導體裝置 |
EP15186686.0A EP3002784B1 (en) | 2014-09-30 | 2015-09-24 | Semiconductor device |
KR1020150135331A KR20160038784A (ko) | 2014-09-30 | 2015-09-24 | 반도체 장치 |
CN201510634371.XA CN105470245B (zh) | 2014-09-30 | 2015-09-29 | 半导体器件 |
CN201520764929.1U CN205039149U (zh) | 2014-09-30 | 2015-09-29 | 半导体器件 |
US14/871,769 US9530721B2 (en) | 2014-09-30 | 2015-09-30 | Semiconductor device |
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