KR100272499B1 - 다중 레벨 금속 집적회로내에 자기정렬된 바이어를 형성하는방법 - Google Patents
다중 레벨 금속 집적회로내에 자기정렬된 바이어를 형성하는방법 Download PDFInfo
- Publication number
- KR100272499B1 KR100272499B1 KR1019980031504A KR19980031504A KR100272499B1 KR 100272499 B1 KR100272499 B1 KR 100272499B1 KR 1019980031504 A KR1019980031504 A KR 1019980031504A KR 19980031504 A KR19980031504 A KR 19980031504A KR 100272499 B1 KR100272499 B1 KR 100272499B1
- Authority
- KR
- South Korea
- Prior art keywords
- layer
- conductive layer
- aluminum
- forming
- metal
- Prior art date
Links
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 78
- 239000002184 metal Substances 0.000 title claims abstract description 78
- 238000000034 method Methods 0.000 title claims abstract description 48
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 85
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 85
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 claims abstract description 40
- 239000004065 semiconductor Substances 0.000 claims abstract description 38
- 238000005530 etching Methods 0.000 claims abstract description 30
- 239000000758 substrate Substances 0.000 claims abstract description 12
- 238000000151 deposition Methods 0.000 claims description 8
- 239000010936 titanium Substances 0.000 claims description 7
- 229910052719 titanium Inorganic materials 0.000 claims description 7
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 6
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 4
- 229910052721 tungsten Inorganic materials 0.000 claims description 4
- 239000010937 tungsten Substances 0.000 claims description 4
- 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
- MZLGASXMSKOWSE-UHFFFAOYSA-N tantalum nitride Chemical compound [Ta]#N MZLGASXMSKOWSE-UHFFFAOYSA-N 0.000 claims description 3
- 239000000463 material Substances 0.000 claims 2
- 229920002120 photoresistant polymer Polymers 0.000 description 20
- 239000000126 substance Substances 0.000 description 9
- 230000015572 biosynthetic process Effects 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000009432 framing Methods 0.000 description 4
- 239000005380 borophosphosilicate glass Substances 0.000 description 3
- 150000004767 nitrides Chemical group 0.000 description 3
- 238000000206 photolithography Methods 0.000 description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- 239000005388 borosilicate glass Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000010297 mechanical methods and process Methods 0.000 description 2
- 230000005226 mechanical processes and functions Effects 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000002161 passivation Methods 0.000 description 2
- 239000005360 phosphosilicate glass Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000012876 topography Methods 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910001080 W alloy Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 238000001020 plasma etching Methods 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- 230000027756 respiratory electron transport chain Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- -1 titanium nitrides Chemical class 0.000 description 1
- MAKDTFFYCIMFQP-UHFFFAOYSA-N titanium tungsten Chemical compound [Ti].[W] MAKDTFFYCIMFQP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/76—Making of isolation regions between components
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76897—Formation of self-aligned vias or contact plugs, i.e. involving a lithographically uncritical step
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76838—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the conductors
- H01L21/76885—By forming conductive members before deposition of protective insulating material, e.g. pillars, studs
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76838—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the conductors
- H01L21/76877—Filling of holes, grooves or trenches, e.g. vias, with conductive material
- H01L21/76883—Post-treatment or after-treatment of the conductive material
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
Abstract
Description
Claims (5)
- 반도체 디바이스내에 바이어(via)를 형성하는 방법에 있어서,반도체 기판을 제공하는 단계;상기 기판상에 놓인 제 1 도전성 층을 형성하는 단계;상기 제 1 도전성 층상에 놓인 상기 제 1 도전성 층과 다른 재료의 제 2 도전성 층을 형성하는 단계;상기 제 2 도전성 층상에 놓인 상기 제 2 도전성 층과 다른 재료의 제 3 도전성 층을 형성하는 단계;상기 제 1, 제 2 및 제 3 도전성 층의 패터닝된 부분을 형성하도록 상기 제 1, 제 2 및 제 3 도전성 층을 동시에 에칭하고 상기 반도체 기판의 부분을 노출시키는 단계;상기 반도체 기판의 노출된 부분상에 놓인 제 1 유전체 층을 데포지트하는 단계로서, 상기 제 1 유전체 층은 상기 제 1, 제 2 및 제 3 도전성 층의 에칭에 의해 형성된 결과적인 갭을 채우는 단계;상기 제 3 도전성 층의 패터닝된 부분의 상부를 노출시키는 상기 제 1 유전체 층을 평면화시키는 단계;필라를 형성하도록 에치 스톱과 같은 상기 제 2 도전성 층을 사용하여 상기 제 3 도전성 층의 일부를 에칭하는 단계로서, 상기 에칭 단계는 상기 제 2 도전성 층 보다 실질적으로 더 많은 상기 제 3 도전성 층을 선택적으로 에칭하는 단계;제 2 유전체 층을 데포지트하는 단계로서, 상기 제 2 유전체 층은 상기 제 3 도전성 층의 에칭에 의해 형성된 결과적인 갭을 채우는 단계; 및상기 필라의 상부를 노출시키는 상기 제 2 유전체 층을 평면화시키는 단계를 포함하는 방법.
- 제 1항에 있어서, 상기 필라의 노출된 상부상에 놓인 제 4 도전성 층을 형성하는 단계를 부가적으로 포함하는 방법.
- 제 1항에 있어서, 상기 제 1 도전성 층을 형성하는 단계는 알루미늄, 텅스텐, 티타늄, 티타늄 질화물, 탄탈룸, 탄탈룸 질화물, 및 이들의 조합물로 구성된 그룹으로부터 선택된 층을 형성하는 단계를 포함하는 방법.
- 제 1항에 있어서, 상기 제 2 도전성 층을 형성하는 단계는 알루미늄, 텅스텐, 티타늄, 티타늄 질화물, 탄탈룸, 탄탈룸 질화물, 및 이들의 조합물로 구성된 그룹으로부터 선택된 층을 형성하는 단계를 포함하는 방법.
- 반도체 디바이스내에 바이어를 형성하는 방법에 있어서,반도체 기판상에 놓인 제 1 유전체 층을 제공하는 단계;상기 제 1 유전체 층상에 놓인 제 1 금속의 제 1 도전성 층을 형성하는 단계;상기 제 1 도전성 층상에 놓인 제 2 금속의 제 2 도전성 층을 형성하는 단계;상기 제 2 도전성 층상에 놓인 상기 제 1 금속의 제 3 도전성 층을 형성하는 단계;상기 제 1, 제 2 및 제 3 도전성 층의 패터닝된 부분을 형성하도록 상기 제 1, 제 2 및 제 3 도전성 층을 동시에 에칭하고 상기 제 1 유전체 층의 일부를 노출시키는 단계;상기 제 1 유전체 층의 노출된 부분상에 놓인 상기 유전체 층을 데포지트하는 단계로서, 상기 제 2 유전체 층은 상기 제 1, 제 2 및 제 3 도전성 층의 에칭에 의해 형성된 결과적인 갭을 채우는 단계;상기 제 3 도전성 층의 패터닝된 부분의 상부를 노출시키는 상기 제 2 유전체 층을 평면화시키는 단계;필라를 형성하도록 에치 스톱과 같은 상기 제 2 도전성 층을 사용하여 상기 제 3 도전성 층의 일부를 에칭하는 단계로서, 상기 에칭 단계는 상기 제 2 도전성 층 보다 실질적으로 더 많은 상기 제 3 도전성 층을 선택적으로 에칭하는 단계;제 3 유전체 층을 데포지트하는 단계로서, 상기 제 3 유전체 층은 상기 제 3 도전성 층의 에칭에 의해 형성된 결과적인 갭을 채우는 단계;상기 필라의 상부를 노출시키는 상기 제 3 유전체 층을 평면화시키는 단계; 및상기 필라의 노출된 상부상에 놓인 제 4 도전성 층을 형성하는 단계를 포함하는 방법.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/923,859 US5904569A (en) | 1997-09-03 | 1997-09-03 | Method for forming self-aligned vias in multi-metal integrated circuits |
US8/923,859 | 1997-09-03 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR19990029271A KR19990029271A (ko) | 1999-04-26 |
KR100272499B1 true KR100272499B1 (ko) | 2000-12-01 |
Family
ID=25449375
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019980031504A KR100272499B1 (ko) | 1997-09-03 | 1998-08-03 | 다중 레벨 금속 집적회로내에 자기정렬된 바이어를 형성하는방법 |
Country Status (3)
Country | Link |
---|---|
US (3) | US5904569A (ko) |
KR (1) | KR100272499B1 (ko) |
DE (1) | DE19834917A1 (ko) |
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US6004884A (en) * | 1996-02-15 | 1999-12-21 | Lam Research Corporation | Methods and apparatus for etching semiconductor wafers |
US5858879A (en) * | 1997-06-06 | 1999-01-12 | Taiwan Semiconductor Manufacturing Co., Ltd. | Method for etching metal lines with enhanced profile control |
US5827768A (en) * | 1997-07-07 | 1998-10-27 | National Science Council | Method for manufacturing an MOS transistor having a self-aligned and planarized raised source/drain structure |
US6037223A (en) * | 1998-10-23 | 2000-03-14 | Taiwan Semiconductor Manufacturing Company, Ltd. | Stack gate flash memory cell featuring symmetric self aligned contact structures |
US6030896A (en) * | 1999-04-21 | 2000-02-29 | National Semiconductor Corporation | Self-aligned copper interconnect architecture with enhanced copper diffusion barrier |
-
1997
- 1997-09-03 US US08/923,859 patent/US5904569A/en not_active Expired - Lifetime
-
1998
- 1998-08-03 DE DE19834917A patent/DE19834917A1/de not_active Ceased
- 1998-08-03 KR KR1019980031504A patent/KR100272499B1/ko not_active IP Right Cessation
-
1999
- 1999-04-21 US US09/295,898 patent/US6103629A/en not_active Expired - Lifetime
- 1999-04-21 US US09/295,838 patent/US6140238A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US6103629A (en) | 2000-08-15 |
US6140238A (en) | 2000-10-31 |
KR19990029271A (ko) | 1999-04-26 |
US5904569A (en) | 1999-05-18 |
DE19834917A1 (de) | 1999-03-11 |
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