JP5992519B2 - Uv支援型の光化学堆積によるプラズマ損傷を受けた低誘電率膜の誘電体の復旧 - Google Patents
Uv支援型の光化学堆積によるプラズマ損傷を受けた低誘電率膜の誘電体の復旧 Download PDFInfo
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- JP5992519B2 JP5992519B2 JP2014518560A JP2014518560A JP5992519B2 JP 5992519 B2 JP5992519 B2 JP 5992519B2 JP 2014518560 A JP2014518560 A JP 2014518560A JP 2014518560 A JP2014518560 A JP 2014518560A JP 5992519 B2 JP5992519 B2 JP 5992519B2
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- 230000008021 deposition Effects 0.000 title 1
- 239000003989 dielectric material Substances 0.000 title 1
- 229910052799 carbon Inorganic materials 0.000 claims description 39
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 38
- 238000000034 method Methods 0.000 claims description 26
- 239000002243 precursor Substances 0.000 claims description 22
- 230000005855 radiation Effects 0.000 claims description 16
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 5
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 claims description 4
- 238000000151 deposition Methods 0.000 claims description 3
- 238000000859 sublimation Methods 0.000 claims description 3
- 230000008022 sublimation Effects 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 2
- 239000011148 porous material Substances 0.000 claims description 2
- 238000011084 recovery Methods 0.000 description 8
- 239000004065 semiconductor Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- 229910008051 Si-OH Inorganic materials 0.000 description 4
- 229910002808 Si–O–Si Inorganic materials 0.000 description 4
- 229910006358 Si—OH Inorganic materials 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 4
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 238000005530 etching Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 230000002209 hydrophobic effect Effects 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 238000004380 ashing Methods 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 239000011203 carbon fibre reinforced carbon Substances 0.000 description 2
- 238000005229 chemical vapour deposition Methods 0.000 description 2
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 238000001465 metallisation Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000005751 Copper oxide Substances 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910000431 copper oxide Inorganic materials 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- QPJSUIGXIBEQAC-UHFFFAOYSA-N n-(2,4-dichloro-5-propan-2-yloxyphenyl)acetamide Chemical compound CC(C)OC1=CC(NC(C)=O)=C(Cl)C=C1Cl QPJSUIGXIBEQAC-UHFFFAOYSA-N 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 229910021426 porous silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000006884 silylation reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000036962 time dependent Effects 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
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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 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
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- H—ELECTRICITY
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- 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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- 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
- H01L21/76814—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 post-treatment or after-treatment, e.g. cleaning or removal of oxides on underlying conductors
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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
- H01L21/76822—Modification of the material of dielectric layers, e.g. grading, after-treatment to improve the stability of the layers, to increase their density etc.
- H01L21/76825—Modification of the material of dielectric layers, e.g. grading, after-treatment to improve the stability of the layers, to increase their density etc. by exposing the layer to particle radiation, e.g. ion implantation, irradiation with UV light or electrons etc.
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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
- H01L21/76822—Modification of the material of dielectric layers, e.g. grading, after-treatment to improve the stability of the layers, to increase their density etc.
- H01L21/76826—Modification of the material of dielectric layers, e.g. grading, after-treatment to improve the stability of the layers, to increase their density etc. by contacting the layer with gases, liquids or plasmas
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- 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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- 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
- H01L21/76831—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 in via holes or trenches, e.g. non-conductive sidewall liners
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- H—ELECTRICITY
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- 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
- H01L21/02109—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates
- H01L21/02112—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer
- H01L21/02123—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing silicon
- H01L21/02126—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing silicon the material containing Si, O, and at least one of H, N, C, F, or other non-metal elements, e.g. SiOC, SiOC:H or SiONC
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- 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
- H01L21/02109—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates
- H01L21/02203—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates the layer being porous
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- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Plasma & Fusion (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
- Formation Of Insulating Films (AREA)
Description
Claims (8)
- 損傷を受けた低誘電率誘電体膜を回復させる方法であって、
誘電体膜を処理チャンバ内に位置決めすることと、
前記処理チャンバを加熱することと、
前記処理チャンバ内へ炭素含有前駆体を流し込むことと、
前記炭素含有前駆体および前記誘電体膜を紫外線(UV)放射に露出することと、
前記炭素含有前駆体を分解することと、
前記誘電体膜の孔の中へ炭素含有化合物を堆積させることと、
前記誘電体膜上に炭素含有膜を堆積させることと、
前記誘電体膜から前記炭素含有膜を除去することと
を含む、方法。 - 前記炭素含有前駆体が1,3−ブタジエンおよびイソプレンのうちの少なくとも1つを含む、請求項1に記載の方法。
- 前記UV放射が200nmと220nmとの間の波長を有する、請求項2に記載の方法。
- 前記UV放射が20nmと230nmとの間の波長を有する、請求項1に記載の方法。
- 前記炭素含有前駆体を分解することが、前記UV放射で前記炭素含有前駆体を分解することを含む、請求項1に記載の方法。
- 前記処理チャンバが、1トルと100トルとの間の圧力であり、前記誘電体膜が、0℃と400℃との間の温度であり、前記炭素含有前駆体が、前記処理チャンバ内へ10sccmと5000sccmとの間の流量で流し込まれ、前記誘電体膜が、5秒と300秒との間の処理時間にわたって処理される、請求項1に記載の方法。
- 前記炭素含有膜が、10Å以下の厚さまで堆積される、請求項1に記載の方法。
- 前記誘電体膜から前記炭素含有膜を除去することが、前記炭素含有膜を昇華させることおよび前記誘電体膜内へ前記炭素含有膜を拡散させることのうちの少なくとも1つを含む、請求項1に記載の方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/171,132 | 2011-06-28 | ||
US13/171,132 US8216861B1 (en) | 2011-06-28 | 2011-06-28 | Dielectric recovery of plasma damaged low-k films by UV-assisted photochemical deposition |
PCT/US2012/037822 WO2013002899A1 (en) | 2011-06-28 | 2012-05-14 | Dielectric recovery of plasma damaged low-k films by uv-assisted photochemical deposition |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2014521210A JP2014521210A (ja) | 2014-08-25 |
JP5992519B2 true JP5992519B2 (ja) | 2016-09-14 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2014518560A Active JP5992519B2 (ja) | 2011-06-28 | 2012-05-14 | Uv支援型の光化学堆積によるプラズマ損傷を受けた低誘電率膜の誘電体の復旧 |
Country Status (6)
Country | Link |
---|---|
US (1) | US8216861B1 (ja) |
JP (1) | JP5992519B2 (ja) |
KR (1) | KR101451591B1 (ja) |
CN (1) | CN103608898A (ja) |
TW (1) | TW201300567A (ja) |
WO (1) | WO2013002899A1 (ja) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
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TW201403711A (zh) | 2012-07-02 | 2014-01-16 | Applied Materials Inc | 利用氣相化學暴露之低k介電質損傷修復 |
TWI581331B (zh) | 2012-07-13 | 2017-05-01 | 應用材料股份有限公司 | 降低多孔低k膜的介電常數之方法 |
CN104143524A (zh) * | 2013-05-07 | 2014-11-12 | 中芯国际集成电路制造(上海)有限公司 | 一种半导体器件的制造方法 |
KR102335891B1 (ko) | 2013-12-26 | 2021-12-03 | 어플라이드 머티어리얼스, 인코포레이티드 | 유동성 막들의 광-보조 증착 |
CN105336663B (zh) * | 2014-05-30 | 2018-11-16 | 中芯国际集成电路制造(上海)有限公司 | 金属互连结构的形成方法 |
US10113234B2 (en) * | 2014-07-21 | 2018-10-30 | Applied Materials, Inc. | UV assisted silylation for porous low-k film sealing |
CN105702619A (zh) * | 2014-11-27 | 2016-06-22 | 中芯国际集成电路制造(上海)有限公司 | 半导体结构的形成方法 |
US9793108B2 (en) * | 2015-06-25 | 2017-10-17 | Applied Material, Inc. | Interconnect integration for sidewall pore seal and via cleanliness |
US9887128B2 (en) * | 2015-12-29 | 2018-02-06 | Taiwan Semiconductor Manufacturing Co., Ltd. | Method and structure for interconnection |
KR20180030280A (ko) | 2016-09-12 | 2018-03-22 | 삼성전자주식회사 | 배선 구조체를 갖는 반도체 소자 |
CN110158052B (zh) | 2019-05-17 | 2021-05-14 | 江苏菲沃泰纳米科技股份有限公司 | 低介电常数膜及其制备方法 |
CN110129769B (zh) * | 2019-05-17 | 2021-05-14 | 江苏菲沃泰纳米科技股份有限公司 | 疏水性的低介电常数膜及其制备方法 |
CN110306226B (zh) * | 2019-07-25 | 2020-12-25 | 常州大学 | 超临界二氧化碳中电沉积碳膜的方法 |
US11348784B2 (en) | 2019-08-12 | 2022-05-31 | Beijing E-Town Semiconductor Technology Co., Ltd | Enhanced ignition in inductively coupled plasmas for workpiece processing |
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US7404990B2 (en) * | 2002-11-14 | 2008-07-29 | Air Products And Chemicals, Inc. | Non-thermal process for forming porous low dielectric constant films |
JP4666200B2 (ja) * | 2004-06-09 | 2011-04-06 | パナソニック株式会社 | SiC半導体装置の製造方法 |
JP5019714B2 (ja) * | 2005-01-31 | 2012-09-05 | 大陽日酸株式会社 | 低誘電率膜のダメージ回復法 |
US7135402B2 (en) * | 2005-02-01 | 2006-11-14 | Taiwan Semiconductor Manufacturing Company, Ltd. | Sealing pores of low-k dielectrics using CxHy |
JP2007317817A (ja) * | 2006-05-25 | 2007-12-06 | Sony Corp | 半導体装置の製造方法 |
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US7500397B2 (en) * | 2007-02-15 | 2009-03-10 | Air Products And Chemicals, Inc. | Activated chemical process for enhancing material properties of dielectric films |
WO2009102363A2 (en) * | 2007-11-15 | 2009-08-20 | Stc.Unm | Ultra-thin microporous/hybrid materials |
JP2009164198A (ja) * | 2007-12-28 | 2009-07-23 | Panasonic Corp | 半導体装置の製造方法 |
US20110151590A1 (en) * | 2009-08-05 | 2011-06-23 | Applied Materials, Inc. | Apparatus and method for low-k dielectric repair |
JP2010245562A (ja) * | 2010-07-15 | 2010-10-28 | Tokyo Electron Ltd | 低誘電率絶縁膜のダメージ回復方法及び半導体装置の製造方法 |
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2011
- 2011-06-28 US US13/171,132 patent/US8216861B1/en active Active
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2012
- 2012-05-14 CN CN201280027958.9A patent/CN103608898A/zh active Pending
- 2012-05-14 WO PCT/US2012/037822 patent/WO2013002899A1/en active Application Filing
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TW201300567A (zh) | 2013-01-01 |
KR20140015623A (ko) | 2014-02-06 |
CN103608898A (zh) | 2014-02-26 |
US8216861B1 (en) | 2012-07-10 |
KR101451591B1 (ko) | 2014-10-16 |
WO2013002899A1 (en) | 2013-01-03 |
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