KR100953742B1 - 반도체 소자 및 그 제조 방법 - Google Patents
반도체 소자 및 그 제조 방법 Download PDFInfo
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- KR100953742B1 KR100953742B1 KR1020090053763A KR20090053763A KR100953742B1 KR 100953742 B1 KR100953742 B1 KR 100953742B1 KR 1020090053763 A KR1020090053763 A KR 1020090053763A KR 20090053763 A KR20090053763 A KR 20090053763A KR 100953742 B1 KR100953742 B1 KR 100953742B1
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- Prior art keywords
- etch stop
- layer
- stop layer
- impurity
- interlayer insulating
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 38
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 239000010410 layer Substances 0.000 claims abstract description 260
- 238000005530 etching Methods 0.000 claims abstract description 53
- 239000012535 impurity Substances 0.000 claims abstract description 48
- 239000011229 interlayer Substances 0.000 claims abstract description 46
- 239000002184 metal Substances 0.000 claims abstract description 43
- 229910052751 metal Inorganic materials 0.000 claims abstract description 43
- 238000000034 method Methods 0.000 claims abstract description 32
- 239000000758 substrate Substances 0.000 claims abstract description 12
- 238000000151 deposition Methods 0.000 claims description 8
- 230000008021 deposition Effects 0.000 claims description 8
- 238000011065 in-situ storage Methods 0.000 claims description 8
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 claims description 7
- 230000007423 decrease Effects 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims 1
- 230000009977 dual effect Effects 0.000 abstract description 5
- 230000015556 catabolic process Effects 0.000 abstract description 4
- 238000009413 insulation Methods 0.000 abstract 2
- 239000000463 material Substances 0.000 description 18
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 17
- 229910052799 carbon Inorganic materials 0.000 description 17
- 230000004888 barrier function Effects 0.000 description 16
- 229910052581 Si3N4 Inorganic materials 0.000 description 15
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 15
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 6
- 229910052710 silicon Inorganic materials 0.000 description 6
- 239000010703 silicon Substances 0.000 description 6
- 229910052757 nitrogen Inorganic materials 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 239000005368 silicate glass Substances 0.000 description 4
- 229910010271 silicon carbide Inorganic materials 0.000 description 4
- -1 silicon carbide nitride Chemical class 0.000 description 4
- 238000000231 atomic layer deposition Methods 0.000 description 3
- 238000001312 dry etching Methods 0.000 description 3
- 239000002356 single layer Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910004200 TaSiN Inorganic materials 0.000 description 2
- 229910008482 TiSiN Inorganic materials 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 239000003989 dielectric material Substances 0.000 description 2
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 2
- QRXWMOHMRWLFEY-UHFFFAOYSA-N isoniazide Chemical compound NNC(=O)C1=CC=NC=C1 QRXWMOHMRWLFEY-UHFFFAOYSA-N 0.000 description 2
- 238000001552 radio frequency sputter deposition Methods 0.000 description 2
- 229910052718 tin Inorganic materials 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005429 filling 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
- 230000010354 integration Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229910021426 porous silicon Inorganic materials 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
- 230000036962 time dependent Effects 0.000 description 1
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Classifications
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- 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
- H01L21/76801—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 dielectrics, e.g. smoothing
- H01L21/76829—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 dielectrics, e.g. smoothing characterised by the formation of thin functional dielectric layers, e.g. dielectric etch-stop, barrier, capping or liner layers
- H01L21/76832—Multiple layers
-
- 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
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02225—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer
- H01L21/0226—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process
- H01L21/02263—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase
- H01L21/02271—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase deposition by decomposition or reaction of gaseous or vapour phase compounds, i.e. chemical vapour deposition
- H01L21/02274—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase deposition by decomposition or reaction of gaseous or vapour phase compounds, i.e. chemical vapour deposition in the presence of a plasma [PECVD]
-
- 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
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—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
- 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
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
- H01L21/3105—After-treatment
- H01L21/311—Etching the insulating layers by chemical or physical means
- H01L21/31105—Etching inorganic layers
- H01L21/31111—Etching inorganic layers by chemical means
- H01L21/31116—Etching inorganic layers by chemical means by dry-etching
-
- 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
- H01L21/76801—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 dielectrics, e.g. smoothing
- H01L21/76802—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 dielectrics, e.g. smoothing by forming openings in dielectrics
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Plasma & Fusion (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
Abstract
Description
Claims (13)
- 반도체 기판 상에 형성되며 막질 차이에 의해 식각률이 다른 적어도 2중 구조의 식각 정지막;상기 식각 정지막 상에 형성되는 층간 절연막;상기 층간 절연막 및 식각 정지막의 소정 영역이 제거된 개구부; 및상기 개구부를 매립하도록 형성된 금속 배선을 포함하고,상기 식각 정지막은 하부막이 상부막보다 식각률이 낮으며,상기 식각 정지막은 하부막에 불순물이 도핑되고 상부막은 상기 불순물이 도핑되지 않고,상기 식각 정지막은 상기 불순물의 도핑 농도가 상부로 갈수록 줄어드는 반도체 소자.
- 삭제
- 삭제
- 삭제
- 반도체 기판 상에 막질 차이에 의해 식각률이 다른 적어도 2중 구조의 식각 정지막을 형성하는 단계;상기 식각 정지막 상에 층간 절연막을 형성한 후 상기 층간 절연막 및 상기 식각 정지막의 일 영역을 식각하여 개구부를 형성하는 단계; 및상기 개구부가 매립되도록 금속 배선을 형성하는 단계를 포함하며,상기 식각 정지막은 하부막이 상부막보다 식각률이 낮고,상기 식각 정지막은 하부막에 불순물을 도핑하고 상부막은 상기 불순물을 도핑하지 않으며, 상기 식각 정지막의 하부막은 상기 불순물의 도핑 농도가 상부로 갈수록 줄어들게 도핑하는 반도체 소자의 제조 방법.
- 제 5 항에 있어서, 상기 적어도 2중 구조의 식각 정지막은 동일 증착 장비에서 인시투로 형성하는 반도체 소자의 제조 방법.
- 삭제
- 삭제
- 제 6 항에 있어서, 상기 식각 정지막은 적어도 2종류의 원료 소오스와 불순물 소오스를 상기 증착 장비에 유입시켜 형성하며, 상기 불순물 소오스의 유입량을 지속적으로 줄여 제 1 두께로 형성한 후 상기 불순물 소오스의 유입을 완전히 중단하여 제 2 두께로 형성하는 반도체 소자의 제조 방법.
- 제 9 항에 있어서, 상기 불순물 소오스의 유입량은 단계적으로 줄이고, 소정 시간 유지하는 반도체 소자의 제조 방법.
- 삭제
- 반도체 기판 상에 막질 차이에 의해 식각률이 다른 적어도 2중 구조의 식각 정지막을 형성하는 단계;상기 식각 정지막 상에 층간 절연막을 형성한 후 상기 층간 절연막 및 상기 식각 정지막의 일 영역을 식각하여 개구부를 형성하는 단계; 및상기 개구부가 매립되도록 금속 배선을 형성하는 단계를 포함하며,상기 식각 정지막은 PECVD 방법으로 형성하고, RF 파워와 압력을 조절하여 상기 식각 정지막의 하부막이 상부막보다 식각률이 낮도록 형성하며,상기 식각 정지막은 제 1 RF 파워와 제 1 압력으로 제 1 두께를 형성한 후 상기 제 1 RF 파워보다 낮은 제 2 RF 파워 및 상기 제 1 압력보다 높은 제 2 압력으로 제 2 두께를 형성하는 반도체 소자의 제조 방법.
- 삭제
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Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20040084668A (ko) * | 2003-03-25 | 2004-10-06 | 가부시끼가이샤 르네사스 테크놀로지 | 반도체 장치 및 그 제조 방법 |
KR100771370B1 (ko) * | 2005-12-29 | 2007-10-30 | 동부일렉트로닉스 주식회사 | 반도체 장치의 금속 배선 및 그 형성 방법 |
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Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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KR20040084668A (ko) * | 2003-03-25 | 2004-10-06 | 가부시끼가이샤 르네사스 테크놀로지 | 반도체 장치 및 그 제조 방법 |
KR100771370B1 (ko) * | 2005-12-29 | 2007-10-30 | 동부일렉트로닉스 주식회사 | 반도체 장치의 금속 배선 및 그 형성 방법 |
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