KR20170046649A - 접합체, 히트 싱크가 부착된 파워 모듈용 기판, 히트 싱크, 접합체의 제조 방법, 히트 싱크가 부착된 파워 모듈용 기판의 제조 방법, 및 히트 싱크의 제조 방법 - Google Patents
접합체, 히트 싱크가 부착된 파워 모듈용 기판, 히트 싱크, 접합체의 제조 방법, 히트 싱크가 부착된 파워 모듈용 기판의 제조 방법, 및 히트 싱크의 제조 방법 Download PDFInfo
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- KR20170046649A KR20170046649A KR1020177004388A KR20177004388A KR20170046649A KR 20170046649 A KR20170046649 A KR 20170046649A KR 1020177004388 A KR1020177004388 A KR 1020177004388A KR 20177004388 A KR20177004388 A KR 20177004388A KR 20170046649 A KR20170046649 A KR 20170046649A
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- 238000000034 method Methods 0.000 title claims abstract description 27
- 239000000758 substrate Substances 0.000 title claims description 68
- 238000004519 manufacturing process Methods 0.000 title claims description 34
- 229910052751 metal Inorganic materials 0.000 claims abstract description 214
- 239000002184 metal Substances 0.000 claims abstract description 214
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 84
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 82
- 239000010949 copper Substances 0.000 claims abstract description 81
- 238000009792 diffusion process Methods 0.000 claims abstract description 77
- 239000007790 solid phase Substances 0.000 claims abstract description 68
- 229910052802 copper Inorganic materials 0.000 claims abstract description 40
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 37
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 31
- 238000005304 joining Methods 0.000 claims abstract description 25
- 239000010936 titanium Substances 0.000 claims description 174
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 58
- 239000000463 material Substances 0.000 claims description 24
- 229910052709 silver Inorganic materials 0.000 claims description 24
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 21
- 239000004332 silver Substances 0.000 claims description 21
- 229910052759 nickel Inorganic materials 0.000 claims description 20
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 38
- 229910004339 Ti-Si Inorganic materials 0.000 description 30
- 229910010978 Ti—Si Inorganic materials 0.000 description 30
- 239000000919 ceramic Substances 0.000 description 20
- 238000010438 heat treatment Methods 0.000 description 16
- 239000004065 semiconductor Substances 0.000 description 16
- 229910000765 intermetallic Inorganic materials 0.000 description 15
- 229910000679 solder Inorganic materials 0.000 description 11
- NDVLTYZPCACLMA-UHFFFAOYSA-N silver oxide Chemical compound [O-2].[Ag+].[Ag+] NDVLTYZPCACLMA-UHFFFAOYSA-N 0.000 description 10
- 238000007747 plating Methods 0.000 description 9
- 229910017945 Cu—Ti Inorganic materials 0.000 description 8
- 239000011888 foil Substances 0.000 description 7
- 229910000881 Cu alloy Inorganic materials 0.000 description 6
- 238000005219 brazing Methods 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 6
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 6
- 238000003475 lamination Methods 0.000 description 6
- 229910018125 Al-Si Inorganic materials 0.000 description 5
- 229910018520 Al—Si Inorganic materials 0.000 description 5
- 239000000945 filler Substances 0.000 description 5
- 239000007791 liquid phase Substances 0.000 description 5
- 229910001923 silver oxide Inorganic materials 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000004512 die casting Methods 0.000 description 4
- 229910018575 Al—Ti Inorganic materials 0.000 description 3
- 239000002826 coolant Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 239000011889 copper foil Substances 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 230000000873 masking effect Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 239000010944 silver (metal) Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- 229910001316 Ag alloy Inorganic materials 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 2
- 229910000990 Ni alloy Inorganic materials 0.000 description 2
- 229910004353 Ti-Cu Inorganic materials 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007772 electroless plating Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 229910000570 Cupronickel Inorganic materials 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 229910000676 Si alloy Inorganic materials 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 229910004337 Ti-Ni Inorganic materials 0.000 description 1
- 229910011209 Ti—Ni Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- XKRFYHLGVUSROY-UHFFFAOYSA-N argon Substances [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- -1 argon ions Chemical class 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 238000004453 electron probe microanalysis Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- RVZRBWKZFJCCIB-UHFFFAOYSA-N perfluorotributylamine Chemical compound FC(F)(F)C(F)(F)C(F)(F)C(F)(F)N(C(F)(F)C(F)(F)C(F)(F)C(F)(F)F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F RVZRBWKZFJCCIB-UHFFFAOYSA-N 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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Abstract
Description
도 2 는 도 1 에 있어서의 금속층의 Cu 층과 제 2 Ti 층의 접합 계면의 확대 설명도이다.
도 3 은 도 1 에 있어서의 히트 싱크와 제 2 Ti 층의 접합 계면의 확대 설명도이다.
도 4 는 제 1 실시형태에 관련된 히트 싱크가 부착된 파워 모듈용 기판의 제조 방법을 설명하는 플로우도이다.
도 5 는 제 1 실시형태에 관련된 파워 모듈용 기판의 제조 방법의 개략 설명도이다.
도 6 은 본 발명의 제 2 실시형태에 관련된 히트 싱크의 개략 설명도이다.
도 7 은 도 6 에 있어서의 금속 부재층과 Ti 층의 접합 계면의 확대 설명도이다.
도 8 은 제 2 실시형태에 관련된 히트 싱크의 제조 방법을 설명하는 플로우도이다.
도 9 는 제 2 실시형태에 관련된 히트 싱크의 제조 방법의 개략 설명도이다.
도 10 은 본 발명의 다른 실시형태인 히트 싱크가 부착된 파워 모듈용 기판을 구비한 파워 모듈의 개략 설명도이다.
11 : 세라믹스 기판
13, 213 : 금속층
13B : Cu 층 (금속 부재)
31 : 히트 싱크 (알루미늄 부재)
35 : 제 2 Ti 층 (Ti 층)
45 : 제 2 티탄박 (Ti 재)
101 : 히트 싱크
110 : 히트 싱크 본체
115 : Ti 층
118 : 금속 부재층
Claims (6)
- 알루미늄 합금으로 이루어지는 알루미늄 부재와, 구리, 니켈 또는 은으로 이루어지는 금속 부재가 접합된 접합체로서,
상기 알루미늄 부재는, 고상선 온도가 상기 금속 부재를 구성하는 금속 원소와 알루미늄의 공정 온도 미만으로 된 알루미늄 합금으로 구성되어 있고,
상기 알루미늄 부재와 상기 금속 부재의 접합부에는 Ti 층이 형성되어 있고, 상기 알루미늄 부재와 상기 Ti 층 및 상기 Ti 층과 상기 금속 부재가, 각각 고상 확산 접합되어 있는, 접합체. - 절연층과, 이 절연층의 일방의 면에 형성된 회로층과, 상기 절연층의 타방의 면에 형성된 금속층과, 이 금속층에 접합된 히트 싱크를 구비한 히트 싱크가 부착된 파워 모듈용 기판으로서,
상기 금속층은, 상기 히트 싱크와의 접합면이 구리, 니켈 또는 은으로 구성되고,
상기 히트 싱크는, 고상선 온도가 상기 금속층의 상기 접합면을 구성하는 금속 원소와 알루미늄의 공정 온도 미만으로 된 알루미늄 합금으로 구성되어 있고,
상기 금속층과 상기 히트 싱크의 접합부에는 Ti 층이 형성되어 있고, 상기 금속층과 상기 Ti 층 및 상기 Ti 층과 상기 히트 싱크가, 각각 고상 확산 접합되어 있는, 히트 싱크가 부착된 파워 모듈용 기판. - 히트 싱크 본체와, 상기 히트 싱크 본체에 접합된 금속 부재층을 구비한 히트 싱크로서,
상기 금속 부재층은, 구리, 니켈 또는 은으로 이루어지고,
상기 히트 싱크 본체는, 고상선 온도가 상기 금속 부재층을 구성하는 금속 원소와 알루미늄의 공정 온도 미만으로 된 알루미늄 합금으로 구성되어 있고,
상기 히트 싱크 본체와 상기 금속 부재층의 접합부에는 Ti 층이 형성되어 있고, 상기 히트 싱크 본체와 상기 Ti 층 및 상기 Ti 층과 상기 금속 부재층이, 각각 고상 확산 접합되어 있는, 히트 싱크. - 제 1 항에 기재된 접합체의 제조 방법으로서,
상기 Ti 층이 되는 Ti 재와 상기 금속 부재를 고상 확산 접합시키는 Ti/금속 부재 접합 공정과,
상기 Ti 재가 접합된 금속 부재와 상기 알루미늄 부재를 고상 확산 접합시키는 알루미늄 부재/Ti 접합 공정을 구비하고 있는, 접합체의 제조 방법. - 제 2 항에 기재된 히트 싱크가 부착된 파워 모듈용 기판의 제조 방법으로서,
상기 Ti 층이 되는 Ti 재와 상기 금속층을 고상 확산 접합시키는 Ti/금속층 접합 공정과,
상기 Ti 재가 접합된 금속층과 상기 히트 싱크를 고상 확산 접합시키는 히트 싱크/Ti 접합 공정을 구비하고 있는, 히트 싱크가 부착된 파워 모듈용 기판의 제조 방법. - 제 3 항에 기재된 히트 싱크의 제조 방법으로서,
상기 Ti 층이 되는 Ti 재와 상기 금속 부재층을 고상 확산 접합시키는 Ti/금속 부재층 접합 공정과,
상기 Ti 재가 접합된 금속 부재층과 상기 히트 싱크 본체를 고상 확산 접합시키는 히트 싱크 본체/Ti 접합 공정을 구비하고 있는, 히트 싱크의 제조 방법.
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