KR100463492B1 - 상호 접속 구조 - Google Patents
상호 접속 구조 Download PDFInfo
- Publication number
- KR100463492B1 KR100463492B1 KR10-2001-7014357A KR20017014357A KR100463492B1 KR 100463492 B1 KR100463492 B1 KR 100463492B1 KR 20017014357 A KR20017014357 A KR 20017014357A KR 100463492 B1 KR100463492 B1 KR 100463492B1
- Authority
- KR
- South Korea
- Prior art keywords
- layer
- interconnect structure
- copper
- alcu
- gpa
- Prior art date
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- 239000010949 copper Substances 0.000 claims abstract description 60
- 229910052802 copper Inorganic materials 0.000 claims abstract description 53
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 52
- 230000004888 barrier function Effects 0.000 claims abstract description 27
- 229910016570 AlCu Inorganic materials 0.000 claims abstract description 24
- 238000002161 passivation Methods 0.000 claims description 19
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 15
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 15
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 14
- 239000004642 Polyimide Substances 0.000 claims description 13
- 229920001721 polyimide Polymers 0.000 claims description 13
- 235000012239 silicon dioxide Nutrition 0.000 claims description 7
- 239000000377 silicon dioxide Substances 0.000 claims description 7
- 239000010936 titanium Substances 0.000 claims description 7
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 5
- 229910052710 silicon Inorganic materials 0.000 claims description 5
- 239000010703 silicon Substances 0.000 claims description 5
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 4
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 claims description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical group [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000011651 chromium Substances 0.000 claims description 3
- 229910052804 chromium Inorganic materials 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 3
- 239000010931 gold Substances 0.000 claims description 3
- 229910052737 gold Inorganic materials 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 229910000679 solder Inorganic materials 0.000 claims description 3
- 229910052715 tantalum Inorganic materials 0.000 claims description 3
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- MAKDTFFYCIMFQP-UHFFFAOYSA-N titanium tungsten Chemical compound [Ti].[W] MAKDTFFYCIMFQP-UHFFFAOYSA-N 0.000 claims description 3
- 229910020816 Sn Pb Inorganic materials 0.000 claims description 2
- 229910020922 Sn-Pb Inorganic materials 0.000 claims description 2
- 229910008783 Sn—Pb Inorganic materials 0.000 claims description 2
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- 238000009413 insulation Methods 0.000 claims 1
- 150000004767 nitrides Chemical class 0.000 claims 1
- 238000000034 method Methods 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 239000002243 precursor Substances 0.000 description 5
- 239000007789 gas Substances 0.000 description 4
- 238000000151 deposition Methods 0.000 description 3
- 230000008021 deposition Effects 0.000 description 3
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 238000005272 metallurgy Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229920002160 Celluloid Polymers 0.000 description 1
- 229910020220 Pb—Sn Inorganic materials 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- MROCJMGDEKINLD-UHFFFAOYSA-N dichlorosilane Chemical compound Cl[SiH2]Cl MROCJMGDEKINLD-UHFFFAOYSA-N 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- PZPGRFITIJYNEJ-UHFFFAOYSA-N disilane Chemical compound [SiH3][SiH3] PZPGRFITIJYNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- NEXSMEBSBIABKL-UHFFFAOYSA-N hexamethyldisilane Chemical compound C[Si](C)(C)[Si](C)(C)C NEXSMEBSBIABKL-UHFFFAOYSA-N 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 229920005575 poly(amic acid) Polymers 0.000 description 1
- 229920003055 poly(ester-imide) Polymers 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- MZLGASXMSKOWSE-UHFFFAOYSA-N tantalum nitride Chemical compound [Ta]#N MZLGASXMSKOWSE-UHFFFAOYSA-N 0.000 description 1
Classifications
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- H01L23/485—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor consisting of lead-in layers inseparably applied to the semiconductor body consisting of layered constructions comprising conductive layers and insulating layers, e.g. planar contacts
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Abstract
Description
Claims (37)
- 구리층, 배리어층, AlCu층 및 패드 제한층을 포함하고, 상기 AlCu층과 배리어층은 상기 구리층과 패드 제한층 사이에 개재되고, 상기 배리어층은 구리층과 AlCu층 사이에 배치되는 것인 구조.
- 제1항에 있어서, 상기 구리층은 두께가 0.3 ㎛ 내지 2 ㎛인 것인 구조.
- 제1항에 있어서, 상기 AlCu층은 96 원자% 내지 99.5 원자%의 Al을 함유하는 것인 구조.
- 제1항에 있어서, 상기 AlCu층은 두께가 0.5 미크론 내지 1.2 미크론인 것인 구조.
- 제1항에 있어서, 상기 배리어층은 티탄, 탄탈륨, 이들의 질화물, 이들의 혼합물, 이들의 조합 및 이들의 합금으로 이루어지는 군(郡)으로부터 선택되는 것인 구조.
- 제1항에 있어서, 상기 배리어층은 두께가 50 Å 내지 1000 Å인 것인 구조.
- 제1항에 있어서, 상기 배리어층은 TaN층, Ti층, TiN층의 조합인 것인 구조.
- 제7항에 있어서, 상기 TiN층은 두께가 200 Å 내지 700 Å이고, 상기 Ti층은 두께가 200 Å 내지 700 Å이며, 상기 TaN층은 두께가 50 Å 내지 1000 Å인 것인 구조.
- 구리층, 이 구리층 위에 놓이고 구리층의 일부를 노출시키는 비아(via)가 있는 절연층, 상기 비아 내에 그리고 상기 구리층 위에 놓이는 배리어층, 상기 비아 내에 그리고 상기 배리어층 위에 놓이는 AlCu층, 이 AlCu층 위에 놓이는 패드 제한층을 포함하는 상호 접속 구조.
- 제9항에 있어서, 상기 패드 제한층과 접촉하는 C4(controlled collapse chip connection) 컨택트 범프를 더 포함하는 상호 접속 구조.
- 제9항에 있어서, 상기 절연층 위에 놓이고 상기 절연층 내의 비아와 일치하는 비아가 있는 패시베이션층(passivation layer)을 더 포함하는 상호 접속 구조.
- 제11항에 있어서, 상기 AlCu층은 상기 패시베이션층 위로 연장되고 그 층 위에 겹쳐지는 것인 상호 접속 구조.
- 제12항에 있어서, 상기 배리어층은 상기 패시베이션층 위로 연장되고 그 층 위에 겹쳐지는 것인 상호 접속 구조.
- 제13항에 있어서, 상기 배리어층의 폭은 상기 구리층의 폭과 동일한 것인 상호 접속 구조.
- 제12항에 있어서, 상기 AlCu층의 폭은 상기 구리층의 폭과 동일한 것인 상호 접속 구조.
- 제15항에 있어서, 상기 패시베이션층 위에 놓이는 유전체층을 더 포함하는 상호 접속 구조.
- 제16항에 있어서, 상기 유전체층은 상기 패시베이션층 위에 겹쳐지는 것인 상기 AlCu층의 부분 위에 겹쳐지는 것인 상호 접속 구조.
- 제16항에 있어서, 상기 패드 제한층은 상기 유전체층 위에 겹쳐지는 것인 상호 접속 구조.
- 제17항에 있어서, 상기 배리어층은 상기 유전체층의 일부분 위에 겹쳐지는 것인 상호 접속 구조.
- 삭제
- 삭제
- 삭제
- 삭제
- 삭제
- 삭제
- 삭제
- 제9항에 있어서, 상기 절연층은 질화규소로 이루어진 것인 상호 접속 구조.
- 제27항에 있어서, 상기 절연층은 두께가 100 Å 내지 1000 Å인 것인 상호 접속 구조.
- 제10항에 있어서, 상기 C4 컨택트 범프는 Sn-Pb 솔더인 것인 상호 접속 구조.
- 제11항에 있어서, 상기 패시베이션층은 이산화규소, 질화규소, 산질화규소 및 이들의 조합으로 구성되는 군으로부터 선택되는 것인 상호 접속 구조.
- 제27항에 있어서, 상기 패시베이션층은 두께가 1000 Å 내지 9000 Å인 것인 상호 접속 구조.
- 제16항에 있어서, 상기 유전체층은 폴리이미드인 것인 상호 접속 구조.
- 제1항에 있어서, 상기 패드 제한층은 질화티탄, 구리, 금, 티타늄 텅스텐, 크롬 및 이들의 조합으로 구성되는 군으로부터의 적어도 하나의 구성원으로부터 선택되는 것인 구조.
- 제1항에 있어서, 상기 패드 제한층은 TiW층, 이 층에 후속하는 CrCu층, 이 층에 후속하는 Cu층을 포함하는 것인 구조.
- 삭제
- 삭제
- 제11항에 있어서, 상기 패시베이션층 위에 놓이는 유전체층을 더 포함하는 상호 접속 구조.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US09/314,003 | 1999-05-19 | ||
US09/314,003 US6133136A (en) | 1999-05-19 | 1999-05-19 | Robust interconnect structure |
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Publication Number | Publication Date |
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KR20020005743A KR20020005743A (ko) | 2002-01-17 |
KR100463492B1 true KR100463492B1 (ko) | 2004-12-29 |
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Country | Link |
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US (1) | US6133136A (ko) |
EP (1) | EP1186034B1 (ko) |
JP (1) | JP3898894B2 (ko) |
KR (1) | KR100463492B1 (ko) |
CN (1) | CN1165081C (ko) |
AT (1) | ATE426247T1 (ko) |
AU (1) | AU4933500A (ko) |
CA (1) | CA2368950C (ko) |
CZ (1) | CZ302748B6 (ko) |
DE (1) | DE60041817D1 (ko) |
ES (1) | ES2320523T3 (ko) |
HU (1) | HUP0201473A2 (ko) |
IL (1) | IL146333A (ko) |
MY (1) | MY118419A (ko) |
PL (1) | PL201072B1 (ko) |
TW (1) | TW473921B (ko) |
WO (1) | WO2000072380A1 (ko) |
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EP1186034A1 (en) | 2002-03-13 |
CN1350703A (zh) | 2002-05-22 |
US6133136A (en) | 2000-10-17 |
IL146333A (en) | 2005-03-20 |
PL351305A1 (en) | 2003-04-07 |
HUP0201473A2 (en) | 2002-08-28 |
JP3898894B2 (ja) | 2007-03-28 |
CZ20014145A3 (cs) | 2002-04-17 |
CA2368950C (en) | 2012-10-02 |
TW473921B (en) | 2002-01-21 |
WO2000072380A1 (en) | 2000-11-30 |
AU4933500A (en) | 2000-12-12 |
EP1186034B1 (en) | 2009-03-18 |
KR20020005743A (ko) | 2002-01-17 |
CN1165081C (zh) | 2004-09-01 |
DE60041817D1 (de) | 2009-04-30 |
MY118419A (en) | 2004-10-30 |
ATE426247T1 (de) | 2009-04-15 |
CA2368950A1 (en) | 2000-11-30 |
PL201072B1 (pl) | 2009-03-31 |
CZ302748B6 (cs) | 2011-10-19 |
ES2320523T3 (es) | 2009-05-25 |
JP2003500860A (ja) | 2003-01-07 |
IL146333A0 (en) | 2002-07-25 |
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