KR100852066B1 - 배선 구조 및 그 형성 방법 - Google Patents
배선 구조 및 그 형성 방법 Download PDFInfo
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- KR100852066B1 KR100852066B1 KR1020020066857A KR20020066857A KR100852066B1 KR 100852066 B1 KR100852066 B1 KR 100852066B1 KR 1020020066857 A KR1020020066857 A KR 1020020066857A KR 20020066857 A KR20020066857 A KR 20020066857A KR 100852066 B1 KR100852066 B1 KR 100852066B1
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- insulating film
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- 238000000034 method Methods 0.000 title claims abstract description 43
- 239000004020 conductor Substances 0.000 claims abstract description 22
- 238000009792 diffusion process Methods 0.000 claims description 33
- 125000004433 nitrogen atom Chemical group N* 0.000 claims description 19
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- 125000004429 atom Chemical group 0.000 claims description 5
- UIUXUFNYAYAMOE-UHFFFAOYSA-N methylsilane Chemical compound [SiH3]C UIUXUFNYAYAMOE-UHFFFAOYSA-N 0.000 claims description 2
- 239000004065 semiconductor Substances 0.000 abstract description 8
- 239000010408 film Substances 0.000 description 276
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- ATVJXMYDOSMEPO-UHFFFAOYSA-N 3-prop-2-enoxyprop-1-ene Chemical compound C=CCOCC=C ATVJXMYDOSMEPO-UHFFFAOYSA-N 0.000 description 9
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 9
- 229910052710 silicon Inorganic materials 0.000 description 9
- 239000010703 silicon Substances 0.000 description 9
- 230000008569 process Effects 0.000 description 8
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- 238000005268 plasma chemical vapour deposition Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 2
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- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 2
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- 238000004544 sputter deposition Methods 0.000 description 2
- 230000002123 temporal effect Effects 0.000 description 2
- PQDJYEQOELDLCP-UHFFFAOYSA-N trimethylsilane Chemical compound C[SiH](C)C PQDJYEQOELDLCP-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
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- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 125000004029 hydroxymethyl group Chemical group [H]OC([H])([H])* 0.000 description 1
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- CZDYPVPMEAXLPK-UHFFFAOYSA-N tetramethylsilane Chemical compound C[Si](C)(C)C CZDYPVPMEAXLPK-UHFFFAOYSA-N 0.000 description 1
- 230000036962 time dependent Effects 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
- 238000007738 vacuum evaporation Methods 0.000 description 1
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- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
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- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
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Abstract
Description
W/N | |||||
V(V) | E(MV/㎝) | 1(k=5.7) | 8(k=4.9) | 15(k=4.3) | |
i0 | 1 | 0.14 | 1.8E-09 | ||
5 | 0.71 | 3.0E-10 | 1.9E-10 | 6.0E-08 | |
10 | 1.43 | 1.4E-09 | 1.6E-09 | 2.7E-06 | |
21 | 3.00 | 5.0E-09 | 3.8E-07 | NG | |
MTF | 21 | 3.00 | >>2000sec | >2000sec | NG |
막 밀도 [g/㎤] | 스트레스변동 [MPa] | k값 | 400℃에서 M/e=16의 탈가스량 [Torr] | 3MV/㎝[sec]에서 TDDB의 수명[sec] |
1.79 | 160 | 4.3 | 3.00E-11 | NG |
2.10 | 40 | 4.6 | 2.00E-11 | >2000 |
2.32 | 40 | 4.9 | 1.80E-11 | >2000 |
2.42 | 2 | 5.8 | 2.50E-12 | >>2000 |
종래 발명품 (SiN 사용) | 종래 발명품 (종래 SiC 사용) | 본 발명품 (본 발명 SiC 사용) | |
배선간 용량 L/S=0.2/0.2㎛ | 170fF/㎜ | 153fF/㎜ | 158fF/㎜ |
배선 수명 2MV/㎝, 200℃ | >1000kh | <800kh | >1000kh |
Claims (10)
- 기판의 상방에 형성된 절연막에 배선 형상의 홈이 형성되고, 상기 홈 내에 상기 절연막에 대하여 확산성이 용이한 도전 재료가 충전되어 배선이 형성되어 이루어지는 배선 구조로서,상기 배선의 상면을 피복하도록, 수소화 SiC를 재료로 하고, 막 밀도가 2.1(g/㎤) 이상으로 된 확산 방지막이 형성되어 있으며,상기 배선을 구성하는 상기 도전 재료는 적어도 Cu를 함유하는 금속 재료인 것을 특징으로 하는 배선 구조.
- 제1항에 있어서,상기 확산 방지막은 8(atm%)∼20(atm%)의 N 원자를 함유하는 것을 특징으로 하는 배선 구조.
- 기판의 상방에 형성된 절연막에 배선 형상의 홈이 형성되고, 상기 홈 내에 상기 절연막에 대하여 확산성이 용이한 도전 재료가 충전되어 배선이 형성되어 이루어지는 배선 구조로서,상기 배선의 상면을 피복하도록, 수소화 SiC를 재료로 하고, 8(atm%)∼20(atm%)의 N 원자를 함유하는 확산 방지막이 형성되어 있으며,상기 배선을 구성하는 상기 도전 재료는 적어도 Cu를 함유하는 금속 재료인 것을 특징으로 하는 배선 구조.
- 삭제
- 절연막에 적어도 배선 형상의 홈을 형성하는 공정과,상기 홈을 적어도 상기 절연막에 대하여 확산성이 용이한 도전 재료로 충전하는 공정과,상기 배선의 상면을 피복하도록, 수소화 SiC를 재료로 하고, 막 밀도가 2.1(g/㎤) 이상이 되도록 확산 방지막을 형성하는 공정을 포함하고,상기 배선을 구성하는 상기 도전 재료는 적어도 Cu를 함유하는 금속 재료인 것을 특징으로 하는 배선 구조의 형성 방법.
- 제5항에 있어서,상기 확산 방지막을 형성할 때에, 해당 확산 방지막 내에 N을 함유하는 가스를 첨가하고, 상기 확산 방지막 내에서의 N 농도를 8(atm%)∼20(atm%)으로 제어하는 것을 특징으로 하는 배선 구조의 형성 방법.
- 절연막에 적어도 배선 형상의 홈을 형성하는 공정과,상기 홈을 적어도 상기 절연막에 대하여 확산성이 용이한 도전 재료로 충전하는 공정과,상기 배선의 상면을 피복하도록, 수소화 SiC를 재료로 하여 확산 방지막을 형성하는 공정을 포함하며,상기 배선을 구성하는 상기 도전 재료는 적어도 Cu를 함유하는 금속 재료이고,상기 확산 방지막을 형성할 때에, 해당 확산 방지막 내에 N을 함유하는 가스를 첨가하고, 상기 확산 방지막 내에서의 N 농도를 8(atm%)∼20(atm%)으로 제어하는 것을 특징으로 하는 배선 구조의 형성 방법.
- 제6항 또는 제7항에 있어서,상기 확산 방지막을 형성할 때에 이용하는 소스 가스가 메틸 실란계의 가스인 것을 특징으로 하는 배선 구조의 형성 방법.
- 제6항 또는 제7항에 있어서,상기 N을 함유하는 가스가 N2 또는 NH3인 것을 특징으로 하는 배선 구조의 형성 방법.
- 삭제
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JP2001093973A (ja) * | 1999-09-20 | 2001-04-06 | Mitsubishi Electric Corp | 半導体集積回路およびその製造方法 |
JP2001160558A (ja) * | 1999-12-02 | 2001-06-12 | Nec Corp | 半導体装置の製造方法及び製造装置 |
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JP2001093973A (ja) * | 1999-09-20 | 2001-04-06 | Mitsubishi Electric Corp | 半導体集積回路およびその製造方法 |
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