KR102170623B1 - 파워 모듈용 기판, 히트 싱크가 부착된 파워 모듈용 기판 및 파워 모듈 - Google Patents
파워 모듈용 기판, 히트 싱크가 부착된 파워 모듈용 기판 및 파워 모듈 Download PDFInfo
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- KR102170623B1 KR102170623B1 KR1020157026040A KR20157026040A KR102170623B1 KR 102170623 B1 KR102170623 B1 KR 102170623B1 KR 1020157026040 A KR1020157026040 A KR 1020157026040A KR 20157026040 A KR20157026040 A KR 20157026040A KR 102170623 B1 KR102170623 B1 KR 102170623B1
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- aluminum
- copper
- power module
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- 239000000758 substrate Substances 0.000 title claims abstract description 224
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 256
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 252
- 239000010949 copper Substances 0.000 claims abstract description 207
- 229910052802 copper Inorganic materials 0.000 claims abstract description 204
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 199
- 229910052751 metal Inorganic materials 0.000 claims abstract description 96
- 239000002184 metal Substances 0.000 claims abstract description 96
- 238000009792 diffusion process Methods 0.000 claims abstract description 34
- 239000007790 solid phase Substances 0.000 claims abstract description 25
- 229910000838 Al alloy Chemical group 0.000 claims abstract description 14
- 229910000881 Cu alloy Inorganic materials 0.000 claims abstract description 10
- 229910000765 intermetallic Inorganic materials 0.000 claims description 65
- 238000000034 method Methods 0.000 claims description 12
- 229910045601 alloy Inorganic materials 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 4
- 239000010410 layer Substances 0.000 claims 26
- 229910000679 solder Inorganic materials 0.000 description 30
- 238000001816 cooling Methods 0.000 description 23
- 238000010438 heat treatment Methods 0.000 description 23
- 239000004065 semiconductor Substances 0.000 description 19
- 239000012071 phase Substances 0.000 description 17
- 238000012360 testing method Methods 0.000 description 12
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 11
- 239000000463 material Substances 0.000 description 11
- 238000005476 soldering Methods 0.000 description 9
- 230000008646 thermal stress Effects 0.000 description 9
- 230000017525 heat dissipation Effects 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 7
- 229910017944 Ag—Cu Inorganic materials 0.000 description 5
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 229910018125 Al-Si Inorganic materials 0.000 description 4
- 229910018520 Al—Si Inorganic materials 0.000 description 4
- 229910020836 Sn-Ag Inorganic materials 0.000 description 4
- 229910020988 Sn—Ag Inorganic materials 0.000 description 4
- 229910018956 Sn—In Inorganic materials 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 4
- 239000012298 atmosphere Substances 0.000 description 4
- 239000013078 crystal Substances 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 238000011156 evaluation Methods 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- 229910020935 Sn-Sb Inorganic materials 0.000 description 3
- 229910008757 Sn—Sb Inorganic materials 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000005266 casting Methods 0.000 description 3
- 239000002826 coolant Substances 0.000 description 3
- 238000005336 cracking Methods 0.000 description 3
- 238000003475 lamination Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910052581 Si3N4 Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005496 eutectics Effects 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 2
- 230000036413 temperature sense Effects 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 150000001879 copper Chemical class 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 210000004185 liver Anatomy 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- H01L2224/32—Structure, shape, material or disposition of the layer connectors after the connecting process of an individual layer connector
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Abstract
Description
도 2 는 도 1 의 회로층에 있어서의 제 1 알루미늄층과 제 1 구리층의 접합 계면의 확대 설명도이다.
도 3 은 도 1 의 금속층에 있어서의 제 2 알루미늄층과 제 2 구리층의 접합 계면의 확대 설명도이다.
도 4 는 본 발명의 제 1 실시형태인 파워 모듈용 기판 및 히트 싱크가 부착된 파워 모듈용 기판의 제조 방법의 플로도이다.
도 5 는 본 발명의 제 1 실시형태인 파워 모듈용 기판 및 히트 싱크가 부착된 파워 모듈용 기판의 제조 방법을 나타내는 설명도이다.
도 6 은 본 발명의 제 2 실시형태인 히트 싱크가 부착된 파워 모듈용 기판을 사용한 파워 모듈의 개략 설명도이다.
도 7 은 본 발명의 제 3 실시형태인 파워 모듈용 기판을 사용한 파워 모듈의 개략 설명도이다.
도 8 은 본 발명의 다른 실시형태인 히트 싱크가 부착된 파워 모듈용 기판의 개략 설명도이다.
도 9 는 본 발명의 다른 실시형태인 히트 싱크가 부착된 파워 모듈용 기판에 있어서, 제 1 알루미늄층과 제 1 구리층의 계면의 개략 설명도이다.
도 10 은 본 발명의 다른 실시형태인 히트 싱크가 부착된 파워 모듈용 기판에 있어서, 제 2 알루미늄층과 제 2 구리층의 계면의 개략 설명도이다.
도 11 은 도 9 에 있어서의 제 1 금속간 화합물층과 제 1 구리층의 계면의 확대 설명도이다.
도 12 는 도 10 에 있어서의 제 2 금속간 화합물층과 제 2 구리층의 계면의 확대 설명도이다.
도 13 은 Cu 와 Al 의 2 원 상태도이다.
3 : 반도체 소자 (전자 부품)
10, 110, 210, 310 : 파워 모듈용 기판
11, 111, 211 : 절연 기판
12, 112, 212, 312 : 회로층
12A, 112A, 212A, 312A : 제 1 알루미늄층
12B, 112B, 212B, 312B : 제 1 구리층
13, 113, 213 : 금속층
13A, 113A, 213A : 제 2 알루미늄층
13B, 113B : 제 2 구리층
40, 140, 240, 340 : 히트 싱크가 부착된 파워 모듈용 기판
41, 141, 241, 341 : 히트 싱크
Claims (5)
- 세라믹스로 이루어지는 절연 기판과, 상기 절연 기판의 일방의 면에 형성된 회로층과, 상기 절연 기판의 타방의 면에 형성된 금속층을 구비한 파워 모듈용 기판으로서,
상기 회로층은, 상기 절연 기판의 일방의 면에 접합된 알루미늄 또는 알루미늄 합금으로 이루어지는 제 1 알루미늄층과, 상기 제 1 알루미늄층 중, 상기 절연 기판과는 반대측의 면에 고상 확산 접합된 구리 또는 구리 합금으로 이루어지는 제 1 구리층을 갖고,
상기 금속층은, 알루미늄 또는 알루미늄 합금으로 이루어지는 제 2 알루미늄층을 가지고 있고,
상기 회로층의 두께 (t1) 와 상기 금속층의 제 2 알루미늄층의 두께 (t2) 의 관계가 t1 < t2 이고,
상기 제 1 알루미늄층과 상기 제 1 구리층의 접합 계면에는, 복수의 금속간 화합물이 상기 접합 계면을 따라 적층된 구조의 금속간 화합물층이 형성되어 있는, 파워 모듈용 기판. - 제 1 항에 있어서,
상기 금속층이, 상기 절연 기판의 타방의 면에 접합된 상기 제 2 알루미늄층과, 상기 제 2 알루미늄층 중, 상기 절연 기판과는 반대측의 면에 고상 확산 접합된 구리 또는 구리 합금으로 이루어지는 제 2 구리층을 갖고,
상기 제 2 알루미늄층과 상기 제 2 구리층의 접합 계면에는, 복수의 금속간 화합물이 상기 접합 계면을 따라 적층된 구조의 금속간 화합물층이 형성되어 있는, 파워 모듈용 기판. - 제 1 항 또는 제 2 항에 있어서,
상기 회로층의 두께 (t1) 와 상기 금속층의 제 2 알루미늄층의 두께 (t2) 의 관계가,
t2/t1 ≥ 1.5 인, 파워 모듈용 기판. - 제 1 항 또는 제 2 항에 기재된 파워 모듈용 기판과, 상기 금속층측에 접합된 히트 싱크를 구비하는, 히트 싱크가 부착된 파워 모듈용 기판.
- 제 1 항 또는 제 2 항에 기재된 파워 모듈용 기판과, 상기 회로층 상에 탑재된 전자 부품을 구비하는, 파워 모듈.
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JP2003078086A (ja) * | 2001-09-04 | 2003-03-14 | Kubota Corp | 半導体素子モジュール基板の積層構造 |
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EP2980844A4 (en) | 2016-11-02 |
CN105009278B (zh) | 2017-12-01 |
EP2980844B1 (en) | 2020-08-05 |
WO2014157112A1 (ja) | 2014-10-02 |
JP2014209539A (ja) | 2014-11-06 |
TWI621226B (zh) | 2018-04-11 |
US20160021729A1 (en) | 2016-01-21 |
US9807865B2 (en) | 2017-10-31 |
JP6621076B2 (ja) | 2019-12-18 |
CN105009278A (zh) | 2015-10-28 |
TW201503300A (zh) | 2015-01-16 |
KR20150135285A (ko) | 2015-12-02 |
EP2980844A1 (en) | 2016-02-03 |
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