KR20050057784A - 반도체 소자의 층간 절연막 형성 방법 - Google Patents
반도체 소자의 층간 절연막 형성 방법 Download PDFInfo
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- KR20050057784A KR20050057784A KR1020030089975A KR20030089975A KR20050057784A KR 20050057784 A KR20050057784 A KR 20050057784A KR 1020030089975 A KR1020030089975 A KR 1020030089975A KR 20030089975 A KR20030089975 A KR 20030089975A KR 20050057784 A KR20050057784 A KR 20050057784A
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- forming
- interlayer insulating
- insulating film
- semiconductor device
- metal wiring
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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
- H01L21/7682—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 the dielectric comprising air gaps
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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
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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
- H01L21/76838—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
- H01L21/76841—Barrier, adhesion or liner layers
- H01L21/76843—Barrier, adhesion or liner layers formed in openings in a dielectric
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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
- H01L21/76838—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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/52—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames
- H01L23/522—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames including external interconnections consisting of a multilayer structure of conductive and insulating layers inseparably formed on the semiconductor body
- H01L23/532—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames including external interconnections consisting of a multilayer structure of conductive and insulating layers inseparably formed on the semiconductor body characterised by the materials
- H01L23/53204—Conductive materials
- H01L23/53209—Conductive materials based on metals, e.g. alloys, metal silicides
- H01L23/53228—Conductive materials based on metals, e.g. alloys, metal silicides the principal metal being copper
- H01L23/53233—Copper alloys
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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
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02041—Cleaning
- H01L21/02057—Cleaning during device manufacture
- H01L21/0206—Cleaning during device manufacture during, before or after processing of insulating layers
- H01L21/02063—Cleaning during device manufacture during, before or after processing of insulating layers the processing being the formation of vias or contact holes
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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
- H01L21/02—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 at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic System 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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
Abstract
Description
Claims (15)
- 반도체 기판 상에 층간 절연막 및 캡핑층을 순차적으로 형성하는 단계;상기 층간 절연막에 다마신 패턴을 형성하는 단계;상기 다마신 패턴을 포함한 전체 구조 상에 장벽 금속층을 형성하는 단계;상기 다마신 패턴을 도전 물질로 매립하여 금속 배선을 형성하는 단계;상기 금속 배선 주변의 상기 층간 절연막을 식각하여 상기 금속 배선 주변에 공기층을 형성하는 단계를 포함하는 반도체 소자의 층간 절연막 형성 방법.
- 반도체 기판 상에 층간 절연막 및 캡핑층을 순차적으로 형성하는 단계;상기 층간 절연막에 다마신 패턴을 형성하는 단계;상기 다마신 패턴을 포함한 전체 구조 상에 장벽 금속층을 형성하는 단계;상기 다마신 패턴을 도전 물질로 매립하여 금속 배선을 형성하는 단계;상기 금속 배선 주변의 상기 캡핑층에 식각 공정으로 개구부를 형성하는 단계; 및상기 개구부를 통해 상기 금속 배선 주변의 상기 층간 절연막을 제거하여 상기 금속 배선의 구변에 공기층을 형성하는 단계를 포함하는 반도체 소자의 층간 절연막 형성 방법.
- 제 1 항 또는 제 2 항에 있어서,상기 층간 절연막이 SiO2 또는 상기 SiO2에 C, F, B, P 또는 In 불순물이 포함된 물질로 형성되는 반도체 소자의 층간 절연막 형성 방법.
- 제 1 항 또는 제 2 항에 있어서,상기 캡핑층이 SiC, Si3N4 또는 이들 물질에 산소 또는 탄소가 포함된 SiOC, SiCN, SiOCN로 형성되는 반도체 소자의 층간 절연막 형성 방법.
- 제 1 항 또는 제 2 항에 있어서,상기 장벽 금속층이 Ta, TaN, TaC, WN, TiN, TiW, TiSiN, WBN, WC 또는 이들의 적층 구조로 형성된 반도체 소자의 층간 절연막 형성 방법.
- 제 1 항 또는 제 2 항에 있어서,제 1 항에 있어서, 상기 듀얼 다마신 패턴을 도전 물질로 매립하는 단계는,상기 다마신 패턴 내부에 금속 시드층을 형성하는 단계; 및화학기상 증착법, 단원자 증착법, 무전해도금법 또는 전기도금법으로 상기 도전 물질을 형성하는 단계를 포함하는 반도체 소자의 층간 절연막 형성 방법.
- 제 6 항에 있어서,상기 도전 물질이 구리 또는 구리 합금인 반도체 소자의 층간 절연막 형성 방법.
- 제 7 항에 있어서,상기 구리 합금은 Cu에 Mg, Sn, Al, Pd, Ti, Nb, Hf, Zr, Sr, Mn, Cd, Zn 또는 Ag가 포함되는 반도체 소자의 층간 절연막 형성 방법.
- 제 2 항에 있어서,상기 개구부가 상기 층간 절연막까지 형성되는 반도체 소자의 층간 절연막 형성 방법.
- 제 2 항 또는 제 9 항에 있어서,상기 개구부가 라인 형태나 홀의 형태로 형성되며 상기 개구부의 폭이나 반경이 100Å 내지 0.5um인 반도체 소자의 층간 절연막 형성 방법.
- 제 1 항 또는 제 2 항에 있어서,상기 층간 절연막의 식각 공정이 HF 용액이나 BOE 용액에 상기 반도체 기판을 담그는 방식으로 진행되는 반도체 소자의 층간 절연막 형성 방법.
- 제 11 항에 있어서,상기 HF 용액이나 BOE 용액이 1:1 내지 20:1로 희석된 반도체 소자의 층간 절연막 형성 방법.
- 제 11 항에 있어서,상기 식각 공정이 배치 타입 또는 싱글 웨이퍼 공정을 위한 회전 식각 장비에서 실시되는 반도체 소자의 층간 절연막 형성 방법.
- 제 11 항에 있어서,상기 식각 공정 후 DI 워터로 상기 반도체 기판을 세정하는 반도체 소자의 층간 절연막 형성 방법.
- 제 2 항에 있어서,상기 금속 배선을 포함한 전체 구조 상에 상기 개구부가 닫히도록 또 다른 캡핑층을 형성하는 단계를 더 포함하는 반도체 소자의 층간 절연막 형성 방법.
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008036385A1 (en) * | 2006-09-21 | 2008-03-27 | Intel Corporation | Dielectric spacers for metal interconnects and method to form the same |
US7649239B2 (en) | 2006-05-04 | 2010-01-19 | Intel Corporation | Dielectric spacers for metal interconnects and method to form the same |
US8329582B2 (en) | 2009-02-10 | 2012-12-11 | Hynix Semiconductor Inc. | Semiconductor device and method of manufacturing the same |
US8772938B2 (en) | 2012-12-04 | 2014-07-08 | Intel Corporation | Semiconductor interconnect structures |
US9960110B2 (en) | 2011-12-30 | 2018-05-01 | Intel Corporation | Self-enclosed asymmetric interconnect structures |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5949143A (en) * | 1998-01-22 | 1999-09-07 | Advanced Micro Devices, Inc. | Semiconductor interconnect structure with air gap for reducing intralayer capacitance in metal layers in damascene metalization process |
JP2002110785A (ja) * | 2000-09-27 | 2002-04-12 | Sony Corp | 半導体装置の製造方法 |
-
2003
- 2003-12-11 KR KR1020030089975A patent/KR101021177B1/ko active IP Right Grant
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7649239B2 (en) | 2006-05-04 | 2010-01-19 | Intel Corporation | Dielectric spacers for metal interconnects and method to form the same |
US7923760B2 (en) | 2006-05-04 | 2011-04-12 | Intel Corporation | Dielectric spacers for metal interconnects and method to form the same |
US8394701B2 (en) | 2006-05-04 | 2013-03-12 | Intel Corporation | Dielectric spacers for metal interconnects and method to form the same |
WO2008036385A1 (en) * | 2006-09-21 | 2008-03-27 | Intel Corporation | Dielectric spacers for metal interconnects and method to form the same |
US7772702B2 (en) | 2006-09-21 | 2010-08-10 | Intel Corporation | Dielectric spacers for metal interconnects and method to form the same |
US8329582B2 (en) | 2009-02-10 | 2012-12-11 | Hynix Semiconductor Inc. | Semiconductor device and method of manufacturing the same |
US9960110B2 (en) | 2011-12-30 | 2018-05-01 | Intel Corporation | Self-enclosed asymmetric interconnect structures |
US8772938B2 (en) | 2012-12-04 | 2014-07-08 | Intel Corporation | Semiconductor interconnect structures |
US9064872B2 (en) | 2012-12-04 | 2015-06-23 | Intel Corporation | Semiconductor interconnect structures |
US9455224B2 (en) | 2012-12-04 | 2016-09-27 | Intel Corporation | Semiconductor interconnect structures |
US9754886B2 (en) | 2012-12-04 | 2017-09-05 | Intel Corporation | Semiconductor interconnect structures |
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