KR102430984B1 - 반도체 장치 및 이의 제조 방법 - Google Patents
반도체 장치 및 이의 제조 방법 Download PDFInfo
- Publication number
- KR102430984B1 KR102430984B1 KR1020150133876A KR20150133876A KR102430984B1 KR 102430984 B1 KR102430984 B1 KR 102430984B1 KR 1020150133876 A KR1020150133876 A KR 1020150133876A KR 20150133876 A KR20150133876 A KR 20150133876A KR 102430984 B1 KR102430984 B1 KR 102430984B1
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- South Korea
- Prior art keywords
- layer
- diffusion barrier
- pillar
- solder
- width
- Prior art date
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 135
- 238000004519 manufacturing process Methods 0.000 title description 26
- 229910000679 solder Inorganic materials 0.000 claims abstract description 201
- 230000004888 barrier function Effects 0.000 claims abstract description 129
- 238000009792 diffusion process Methods 0.000 claims abstract description 127
- 239000000758 substrate Substances 0.000 claims abstract description 69
- 229910052751 metal Inorganic materials 0.000 claims description 129
- 239000002184 metal Substances 0.000 claims description 129
- 238000000034 method Methods 0.000 claims description 83
- 229910000765 intermetallic Inorganic materials 0.000 claims description 21
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- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 44
- 239000010949 copper Substances 0.000 description 36
- 239000000463 material Substances 0.000 description 36
- 238000002161 passivation Methods 0.000 description 24
- 229910052759 nickel Inorganic materials 0.000 description 19
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 16
- 229910052802 copper Inorganic materials 0.000 description 16
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 15
- 238000005530 etching Methods 0.000 description 15
- 239000010931 gold Substances 0.000 description 12
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 12
- 238000001039 wet etching Methods 0.000 description 8
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- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 6
- 229910052737 gold Inorganic materials 0.000 description 6
- 239000010936 titanium Substances 0.000 description 6
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- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
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- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 3
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- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 3
- 229910052721 tungsten Inorganic materials 0.000 description 3
- 239000010937 tungsten Substances 0.000 description 3
- 238000009736 wetting Methods 0.000 description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910052787 antimony Inorganic materials 0.000 description 2
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 2
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 2
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- 229910052804 chromium Inorganic materials 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- 229910052738 indium Inorganic materials 0.000 description 2
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- HBVFXTAPOLSOPB-UHFFFAOYSA-N nickel vanadium Chemical compound [V].[Ni] HBVFXTAPOLSOPB-UHFFFAOYSA-N 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- JBQYATWDVHIOAR-UHFFFAOYSA-N tellanylidenegermanium Chemical compound [Te]=[Ge] JBQYATWDVHIOAR-UHFFFAOYSA-N 0.000 description 2
- 239000011800 void material Substances 0.000 description 2
- 235000001674 Agaricus brunnescens Nutrition 0.000 description 1
- 229910017944 Ag—Cu Inorganic materials 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- 229910020816 Sn Pb Inorganic materials 0.000 description 1
- 229910020836 Sn-Ag Inorganic materials 0.000 description 1
- 229910020830 Sn-Bi Inorganic materials 0.000 description 1
- 229910020888 Sn-Cu Inorganic materials 0.000 description 1
- 229910020922 Sn-Pb Inorganic materials 0.000 description 1
- 229910020994 Sn-Zn Inorganic materials 0.000 description 1
- 229910020988 Sn—Ag Inorganic materials 0.000 description 1
- 229910018731 Sn—Au Inorganic materials 0.000 description 1
- 229910018728 Sn—Bi Inorganic materials 0.000 description 1
- 229910019204 Sn—Cu Inorganic materials 0.000 description 1
- 229910019319 Sn—Cu—Zn Inorganic materials 0.000 description 1
- 229910008783 Sn—Pb Inorganic materials 0.000 description 1
- 229910009069 Sn—Zn Inorganic materials 0.000 description 1
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000004380 ashing Methods 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- ZTXONRUJVYXVTJ-UHFFFAOYSA-N chromium copper Chemical compound [Cr][Cu][Cr] ZTXONRUJVYXVTJ-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
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- 239000003822 epoxy resin Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920002120 photoresistant polymer Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- MZLGASXMSKOWSE-UHFFFAOYSA-N tantalum nitride Chemical compound [Ta]#N MZLGASXMSKOWSE-UHFFFAOYSA-N 0.000 description 1
- MAKDTFFYCIMFQP-UHFFFAOYSA-N titanium tungsten Chemical compound [Ti].[W] MAKDTFFYCIMFQP-UHFFFAOYSA-N 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
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Abstract
Description
도 2는 예시적인 실시예들에 따른 반도체 칩을 나타내는 단면도이다.
도 3은 예시적인 실시예들에 따른 반도체 칩을 나타내는 단면도이다.
도 4는 예시적인 실시예들에 따른 반도체 칩을 나타내는 단면도이다.
도 5는 예시적인 실시예들에 따른 반도체 칩을 나타내는 단면도이다.
도 6은 예시적인 실시예들에 따른 반도체 칩을 나타내는 단면도이다.
도 7 내지 도 13은 예시적인 실시예들에 따른 반도체 칩의 제조 방법을 나타내는 단면도들이다.
도 14는 예시적인 실시예들에 따른 반도체 칩의 제조 방법을 나타내는 단면도이다.
도 15 내지 도 18은 예시적인 실시예들에 따른 반도체 칩의 제조 방법을 나타내는 단면도들이다.
도 19는 예시적인 실시예들에 따른 반도체 칩의 제조 방법을 나타내는 단면도이다.
도 20 내지 도 23은 예시적인 실시예들에 따른 반도체 칩의 제조 방법을 나타내는 단면도들이다.
도 24는 예시적인 실시예들에 따른 반도체 장치의 제조 방법을 나타내는 단면도이다.
130, 130A: 하부 금속층 140, 140A, 140B: 연결 단자
150, 150A, 150B: 도전성 필라 구조물
152, 152A, 152B: 하부 필라층 154: 확산 방지층
156, 156A: 상부 필라층 160, 160A: 솔더층
170: 언더필층 180: 몰딩재
192: 재배선 금속층 194: 재배선 절연층
200: 패키지 기판 210: 베이스 기판
220: 접속 패드 230: 절연층
240: 외부 단자 접속 패드 250: 외부 단자
Claims (20)
- 기판 상에 배치되는 도전 패드; 및
상기 도전 패드에 전기적으로 연결되는 연결 단자(connection terminal)로서,
순차적으로 적층된 하부 필라층, 확산 방지층 및 상부 필라층을 포함하며, 측벽에 돌출부를 구비하는 도전성 필라 구조물(conductive pillar structure), 및
상기 상부 필라층 상에 배치되며, 상기 돌출부의 적어도 일부분과 접촉하는 솔더층(solder layer)을 구비하는 상기 연결 단자를 포함하고,
상기 솔더층은 상기 확산 방지층의 상면의 적어도 일부분과 접촉하는 것을 특징으로 하는 반도체 장치. - 제1항에 있어서,
상기 상부 필라층의 상기 기판의 상면에 평행한 제1 방향을 따른 제1 폭이 상기 확산 방지층의 상기 제1 방향을 따른 제2 폭보다 작은 것을 특징으로 하는 반도체 장치. - 삭제
- 제1항에 있어서,
상기 확산 방지층의 측벽이 상기 상부 필라층의 측벽보다 외측으로(outwardly) 돌출하여 상기 돌출부를 형성하는 것을 특징으로 하는 반도체 장치. - 제1항에 있어서,
상기 확산 방지층의 외주부(outer circumference)의 상면은 상기 상부 필라층에 의해 커버되지 않는 것을 특징으로 하는 반도체 장치. - 제5항에 있어서,
상기 상부 필라층에 의해 커버되지 않는 상기 확산 방지층의 상기 외주부의 상면은 상기 솔더층과 접촉하는 것을 특징으로 하는 반도체 장치. - 제1항에 있어서,
상기 상부 필라층의 상면 전체 및 측벽이 상기 솔더층에 의해 커버되는 것을 특징으로 하는 반도체 장치. - 제1항에 있어서,
상기 솔더층은 상기 상부 필라층의 상면에 대하여 제1 높이를 갖고, 상기 제1 높이는 상기 확산 방지층의 상기 기판의 상면에 평행한 제1 방향을 따른 제2 폭의 50% 내지 90%인 것을 특징으로 하는 반도체 장치. - 제1항에 있어서,
상기 상부 필라층의 상기 기판의 상면에 평행한 제1 방향을 따른 제1 폭이 상기 확산 방지층의 상기 제1 방향을 따른 제2 폭의 80% 내지 98%인 것을 특징으로 하는 반도체 장치. - 제1항에 있어서,
상기 하부 필라층의 상기 기판의 상면에 평행한 제1 방향을 따른 제3 폭이 상기 확산 방지층의 상기 제1 방향을 따른 제2 폭의 80% 내지 98%인 것을 특징으로 하는 반도체 장치. - 제1항에 있어서,
상기 상부 필라층의 상기 기판의 상면에 평행한 제1 방향을 따른 제1 폭이 상기 확산 방지층의 상기 제1 방향을 따른 제2 폭의 30% 내지 80%인 것을 특징으로 하는 반도체 장치. - 제1항에 있어서,
상기 하부 필라층의 상기 기판의 상면에 평행한 제1 방향을 따른 제3 폭이 상기 확산 방지층의 상기 제1 방향을 따른 제2 폭의 30% 내지 80%인 것을 특징으로 하는 반도체 장치. - 제1항에 있어서,
상기 하부 필라층의 상기 기판의 상면에 평행한 제1 방향을 따른 제3 폭이 상기 상부 필라층의 상기 제1 방향을 따른 제1 폭보다 작은 것을 특징으로 하는 반도체 장치. - 제1항에 있어서,
상기 하부 필라층과 상기 도전 패드 사이에 배치되는 하부 금속층을 더 포함하며,
상기 하부 금속층의 측벽은 상기 하부 필라층의 측벽과 정렬되는 것을 특징으로 하는 반도체 장치. - 제1항에 있어서,
상기 하부 필라층과 상기 도전 패드 사이에 배치되는 하부 금속층을 더 포함하며,
상기 하부 금속층 주위에 언더컷이 형성되고, 상기 하부 금속층의 측벽이 상기 하부 필라층의 측벽보다 내측으로 배치되는 것을 특징으로 하는 반도체 장치. - 제1항에 있어서,
상기 상부 필라층의 측벽과 상면, 및 상기 확산 방지층의 외주부의 상면이 상기 솔더층에 의해 커버되고,
상기 상부 필라층의 상기 측벽과 상기 상면, 및 상기 확산 방지층의 상기 외주부의 상면과 상기 솔더층 사이에 금속간 화합물(intermetallic compound, IMC)을 포함하는 중간층이 형성되는 것을 특징으로 하는 반도체 장치. - 기판 상에 배치되는 도전 패드; 및
상기 도전 패드에 전기적으로 연결되는 연결 단자로서,
상기 도전 패드 상에 순차적으로 적층된 하부 필라층, 확산 방지층 및 상부 필라층을 포함하는 도전성 필라 구조물, 및
상기 상부 필라층 및 상기 확산 방지층의 일부분 상에 배치되는 솔더층을 구비하는 상기 연결 단자를 포함하며,
상기 상부 필라층의 상기 기판의 상면에 평행한 제1 방향을 따른 제1 폭이 상기 확산 방지층의 상기 제1 방향을 따른 제2 폭보다 작은 것을 특징으로 하는 반도체 장치. - 제17항에 있어서,
상기 솔더층은 상기 상부 필라층의 상면 전체 및 측벽을 커버하고,
상기 솔더층은 상기 확산 방지층의 상면 적어도 일부분을 커버하는 것을 특징으로 하는 반도체 장치. - 제17항에 있어서,
상기 솔더층은, 상기 상부 필라층에 의해 커버되지 않는 상기 확산 방지층의 상면 전체와 접촉하는 것을 특징으로 하는 반도체 장치. - 제17항에 있어서,
상기 상부 필라층의 측벽 및 상면과 상기 솔더층과의 사이에 금속간 화합물(IMC)이 형성되는 것을 특징으로 하는 반도체 장치.
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