TW500831B - Metal-corrosion inhibitor and cleaning liquid - Google Patents
Metal-corrosion inhibitor and cleaning liquid Download PDFInfo
- Publication number
- TW500831B TW500831B TW089100759A TW89100759A TW500831B TW 500831 B TW500831 B TW 500831B TW 089100759 A TW089100759 A TW 089100759A TW 89100759 A TW89100759 A TW 89100759A TW 500831 B TW500831 B TW 500831B
- Authority
- TW
- Taiwan
- Prior art keywords
- corrosion inhibitor
- acid
- patent application
- cleaning liquid
- item
- Prior art date
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 50
- 238000005260 corrosion Methods 0.000 title claims abstract description 47
- 239000003112 inhibitor Substances 0.000 title claims abstract description 37
- 239000007788 liquid Substances 0.000 title claims abstract description 14
- 230000007797 corrosion Effects 0.000 claims abstract description 45
- 239000004065 semiconductor Substances 0.000 claims abstract description 11
- -1 aliphatic alcohol compound Chemical class 0.000 claims abstract description 10
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 10
- 125000004432 carbon atom Chemical group C* 0.000 claims abstract description 7
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims abstract description 5
- 239000000243 solution Substances 0.000 claims description 40
- 229910052751 metal Inorganic materials 0.000 claims description 26
- 239000002184 metal Substances 0.000 claims description 26
- 239000002253 acid Substances 0.000 claims description 18
- 239000010949 copper Substances 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 9
- 229910052739 hydrogen Inorganic materials 0.000 claims description 8
- 239000001257 hydrogen Substances 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 7
- 239000007864 aqueous solution Substances 0.000 claims description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 6
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 6
- WGTYBPLFGIVFAS-UHFFFAOYSA-M tetramethylammonium hydroxide Chemical compound [OH-].C[N+](C)(C)C WGTYBPLFGIVFAS-UHFFFAOYSA-M 0.000 claims description 6
- 239000012670 alkaline solution Substances 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims description 4
- 150000001721 carbon Chemical group 0.000 claims description 4
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 3
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 3
- OEYIOHPDSNJKLS-UHFFFAOYSA-N choline Chemical compound C[N+](C)(C)CCO OEYIOHPDSNJKLS-UHFFFAOYSA-N 0.000 claims description 3
- 229960001231 choline Drugs 0.000 claims description 3
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 2
- 239000000908 ammonium hydroxide Substances 0.000 claims description 2
- 229910017604 nitric acid Inorganic materials 0.000 claims description 2
- 125000004354 sulfur functional group Chemical group 0.000 claims description 2
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims 2
- AEVPOPALCFAFPH-UHFFFAOYSA-N 2-hydroxyethyl thiohypochlorite Chemical compound OCCSCl AEVPOPALCFAFPH-UHFFFAOYSA-N 0.000 claims 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims 1
- PJUIMOJAAPLTRJ-UHFFFAOYSA-N monothioglycerol Chemical compound OCC(O)CS PJUIMOJAAPLTRJ-UHFFFAOYSA-N 0.000 claims 1
- 235000006408 oxalic acid Nutrition 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 125000003396 thiol group Chemical group [H]S* 0.000 abstract 2
- 238000000034 method Methods 0.000 description 10
- 235000012431 wafers Nutrition 0.000 description 10
- 230000002401 inhibitory effect Effects 0.000 description 9
- 238000005498 polishing Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 229910052802 copper Inorganic materials 0.000 description 6
- 238000007654 immersion Methods 0.000 description 6
- 239000012736 aqueous medium Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 3
- 239000012964 benzotriazole Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000004090 dissolution Methods 0.000 description 3
- 150000002431 hydrogen Chemical group 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- 239000011593 sulfur Substances 0.000 description 3
- 235000005979 Citrus limon Nutrition 0.000 description 2
- 244000131522 Citrus pyriformis Species 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 235000011114 ammonium hydroxide Nutrition 0.000 description 2
- 150000001491 aromatic compounds Chemical class 0.000 description 2
- 230000002079 cooperative effect Effects 0.000 description 2
- 238000001312 dry etching Methods 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 230000009931 harmful effect Effects 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000009991 scouring Methods 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- DNIAPMSPPWPWGF-GSVOUGTGSA-N (R)-(-)-Propylene glycol Chemical compound C[C@@H](O)CO DNIAPMSPPWPWGF-GSVOUGTGSA-N 0.000 description 1
- FCBJLBCGHCTPAQ-UHFFFAOYSA-N 1-fluorobutane Chemical compound CCCCF FCBJLBCGHCTPAQ-UHFFFAOYSA-N 0.000 description 1
- DDFHBQSCUXNBSA-UHFFFAOYSA-N 5-(5-carboxythiophen-2-yl)thiophene-2-carboxylic acid Chemical compound S1C(C(=O)O)=CC=C1C1=CC=C(C(O)=O)S1 DDFHBQSCUXNBSA-UHFFFAOYSA-N 0.000 description 1
- RWXZXCZBMQPOBF-UHFFFAOYSA-N 5-methyl-1H-benzimidazole Chemical compound CC1=CC=C2N=CNC2=C1 RWXZXCZBMQPOBF-UHFFFAOYSA-N 0.000 description 1
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 1
- 244000025254 Cannabis sativa Species 0.000 description 1
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- LLLFRBVVZUUFOP-UHFFFAOYSA-N S(CCCO)O Chemical compound S(CCCO)O LLLFRBVVZUUFOP-UHFFFAOYSA-N 0.000 description 1
- 229910052770 Uranium Inorganic materials 0.000 description 1
- AYSYSOQSKKDJJY-UHFFFAOYSA-N [1,2,4]triazolo[4,3-a]pyridine Chemical compound C1=CC=CN2C=NN=C21 AYSYSOQSKKDJJY-UHFFFAOYSA-N 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- XTEGARKTQYYJKE-UHFFFAOYSA-N chloric acid Chemical compound OCl(=O)=O XTEGARKTQYYJKE-UHFFFAOYSA-N 0.000 description 1
- 229940005991 chloric acid Drugs 0.000 description 1
- 239000011538 cleaning material Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- HPKZHKRTMMLVBQ-UHFFFAOYSA-N fluoro propanoate Chemical compound CCC(=O)OF HPKZHKRTMMLVBQ-UHFFFAOYSA-N 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- GSWAOPJLTADLTN-UHFFFAOYSA-N oxidanimine Chemical compound [O-][NH3+] GSWAOPJLTADLTN-UHFFFAOYSA-N 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 229910052702 rhenium Inorganic materials 0.000 description 1
- WUAPFZMCVAUBPE-UHFFFAOYSA-N rhenium atom Chemical compound [Re] WUAPFZMCVAUBPE-UHFFFAOYSA-N 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 150000003464 sulfur compounds Chemical class 0.000 description 1
- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-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
- H01L21/02—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
- H01L21/302—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to change their surface-physical characteristics or shape, e.g. etching, polishing, cutting
- H01L21/304—Mechanical treatment, e.g. grinding, polishing, cutting
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/22—Organic compounds
- C11D7/32—Organic compounds containing nitrogen
- C11D7/3209—Amines or imines with one to four nitrogen atoms; Quaternized amines
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/02—Inorganic compounds
- C11D7/04—Water-soluble compounds
- C11D7/06—Hydroxides
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/02—Inorganic compounds
- C11D7/04—Water-soluble compounds
- C11D7/08—Acids
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/50—Solvents
- C11D7/5004—Organic solvents
- C11D7/5009—Organic solvents containing phosphorus, sulfur or silicon, e.g. dimethylsulfoxide
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
- C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
- C23F11/16—Sulfur-containing compounds
- C23F11/161—Mercaptans
-
- 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
- H01L21/3205—Deposition of non-insulating-, e.g. conductive- or resistive-, layers on insulating layers; After-treatment of these layers
- H01L21/321—After treatment
- H01L21/3213—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer
- H01L21/32133—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer by chemical means only
- H01L21/32134—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer by chemical means only by liquid etching only
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
- C11D2111/10—Objects to be cleaned
- C11D2111/14—Hard surfaces
- C11D2111/22—Electronic devices, e.g. PCBs or semiconductors
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/22—Organic compounds
- C11D7/34—Organic compounds containing sulfur
-
- 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
- H01L21/02068—Cleaning during device manufacture during, before or after processing of conductive layers, e.g. polysilicon or amorphous silicon layers
- H01L21/02071—Cleaning during device manufacture during, before or after processing of conductive layers, e.g. polysilicon or amorphous silicon layers the processing being a delineation, e.g. RIE, of conductive layers
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Inorganic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Cleaning Or Drying Semiconductors (AREA)
- Detergent Compositions (AREA)
Description
500831 A7 _B7_ 五、發明說明(1 ) 發明領域 _ 請 先 閱 讀 背 面 之 注 意 秦 項 再 填 寫 本 Μ 本發明係有關金屬腐飩抑制劑和淸潔液。更特定言之 ,本發明係有關可用來淸潔例如半導體裝置之類材料之金 屬腐蝕抑制劑與淸潔液。 發明背景 於半導體裝置所用傳統線路形成中,通常是將要形成 線路的金屬施加到.一矽晶圓上以形成其膜,再透過石印刷 •與乾蝕刻將該膜形成爲合意的線路,且於其後用絕緣膜將 線路之間的空間掩埋以完成線路形成。最近,已開發出一 種同時使用一特別的拋光劑(polishing agent )和拋光墊 之化學機械拋光法,其於後文縮寫爲C Μ P,如情況所示 者,且有一種利用C Μ Ρ經由金屬鑲嵌程序進行的線路形 成已受到注意。根據這種方法,係先形成絕緣膜,其後, 透明石印刷與乾蝕刻形成線路用的溝槽,於其上施加金屬 以形成其膜並用該膜埋覆該溝槽,然後再進行CMP以脫 除掉突出該溝槽之金屬膜。 經濟部智慧財產局員工消費合作社印製 ^不過,於利用CMP的金屬線路形成中,在金屬拋光 後,晶圓的表面和背面會被殘留的拋光劑,拋光產生的拋 光碎屑和拋光劑與拋光墊所含的金屬雜質等所顯著地污染 ,因而在拋光後不可避免地要淸潔其表面。 一般而言,爲了脫除晶圓表面上的粒子,宜於用鹼性 溶液進行淸潔,係因爲重要地要抑制從其表面脫除掉的粒 子再黏附之故。而,爲了要有效地脫除金屬雜質,宜於用 本紙張尺度適用中國國家標準(CNS)A4規格(210 X 297公釐) -4- 500831 A7 • B7 五、發明說明(2 ) 有強金屬溶解力的酸溶液進行清潔。 不過,JD所知者,使用彼等鹼性和酸溶液時金屬會受 到腐蝕。所以,要對其上有舖設裸露的金屬線路之晶圓表 面使用彼等溶液予以淸潔時’常會引起使彼等金屬表面在 淸潔後受到腐蝕之問題,由是促成線路電阻的增高及更甚 者使線路中斷。 有關要避免金屬腐蝕的腐蝕抑制劑’已知者有芳烴化 合物例如,苯并三唑和5 -甲基苯并咪唑,且已有使用彼 等腐蝕抑制劑之嘗試。同時,目前也有探討各種排放到環 境的化學物質對人類健康與生態系統的影響。因此,有需 要開發出一種在透過水介質影響人類健康和生態系統的可 能性上比目前爲止所用者較爲低之金屬腐鈾抑制劑。 請 先 閱 讀 背· 面 之 注 意 孝 項 再 填 f裝 本 . .1 訂 瘦齊ΪΡ皆慧W轰苟員11消費^阼汪印糾狄 發明槪述 本案發明人曾進行精深的硏究以 問題之金屬腐蝕抑制劑。其結果發現 鍵結著氫硫基的碳原子及另一鍵結著 彼此相鄰地鍵結著;該 用來淸潔如半導體裝置 響人類健康與生態系統 低;由是完成本發明。 化合物不具金 之類物質,且 的可能性上比 期發掘一種 一種化合物 羥基的碳原 屬腐蝕活性 再者於透過 目前爲止所 沒有上述 ;Sr —* 子,兩者 ,且適合 水介質·影 用者較爲 本發明提出一種金屬腐蝕抑制劑其包括一脂族醇化合 醇化合物 子和鍵結 物其在分子中具有至少 的碳原子數不少於2, 個氯硫基 其中構成該 且共鍵結著氫硫基的碳原 本紙張尺度適用中國國家標準(CNS)A4規格(210 X 297公釐) -5- 500831 A7 B7_ 五、發明說明(3 ) 若羥基的另一碳原子係彼此相鄰地鍵結著。 本發明更提出一種淸潔液其包括前述金屬腐蝕抑制劑 〇 本發明更提出一種淸潔半導體裝置之方法,其包括將 該裝置與前述淸潔液接觸。 較佳實施例之詳細說明 本發明腐蝕抑制劑包括一在分子中具有至少一個氫硫 基的脂族醇化合物。對該脂族醇爲必要者爲其碳原子數不 少於2,且鍵結著氫硫基的一碳原子與鍵結著羥基的另一 碳原子彼此係相鄰地鍵結著,換言之,該兩碳原子係彼此 直接鍵結著,由是得到合意的腐蝕抑制效應。脂族醇化合 物的較佳例子爲2 -氫硫基乙醇與硫t油。 本發明腐蝕抑制劑可抑制金屬腐触。該金屬包括,例 如,銅與銅合金。 本發明腐蝕抑制劑可經摻和到一淸潔液中以製得不具 腐飩活性的淸潔液。有關該淸潔液*可列舉者爲淸潔半導 體裝置所用者。特別是在使用該沒有腐触活性的淸潔液來 淸潔有銅線路的半導體裝置時,更可展現出本發明特性。 該淸潔液可用於鹼溶液或酸溶液的任一形式中。 該腐蝕抑制ΡΪ在該淸潔液中的濃度較佳者爲約 0 · 0001至約10重量%,更佳者爲約0 · 〇〇1至 約1重量%。當該濃度太低時,腐蝕抑制效應可能受限到 一令人不滿意的程度。而,太高的濃度可能經常不會產生 本紙張尺度適用中國國家標準(CNS)A4規格(210 X 297公釐) (請先閱讀背面之注意事項再填寫本頁) 裝 線- 經濟部智慧財產局員Η消費合作社印製 500831 A7 _B7_五、發明說明(4 ) 更增加的腐Μ抑制效應且由於載有氫 的臭味可能促成難以處理。 該淸潔液可以經由將本發明腐蝕 淸潔液中及攪拌該混合物以使腐蝕抑 易地製備成。 使用本發明淸潔液進行的淸潔沒 傳統方式進行。 有關要摻加上述腐蝕抑制劑的淸 溶液其可以有效地脫除掉晶圓上所含 易引起銅線路腐蝕之有害效應,及酸 除晶圓上的金屬雜質但其具有容易引 效應。 該鹼溶液沒有特別限制且包括, 氫氧化鈉,氫氧化鉀和氫氧化銨之水 如氫氧化四甲銨與膽鹼之水溶液。特 氧化銨,氫氧化四甲銨和膽鹼等化合 純化以脫除金屬雜質和細微粒子者。 硫基的化合物所特具 抑制劑摻和到習用的 制劑溶解在其中而容 有特別限制,、且可用 潔液,建議使用鹼性 細微粒子但其具有容 溶液其可以有效地脫 起銅線路腐飩之有害 例如,無機化合物如 溶液,及有機化合物 別者,建議使用如氫 物的水溶液,其係經 請 先 閱 讀 背 面
意 事 項 再 填 1,I裝.J 訂 線 經濟部智慧財產局員工消費合作社印製 酸檬液酸和 重 鹽檸溶硝質 ο 如’水,雜 1 酸酸的酸屬 至 機草酸硫金 1 無如二,掉 ο , 酸烯酸除 ο 如機 丁氟脫 · 例有順氫化 ο :和和,純 爲 括,酸酸經 者 包液二鹽係 佳 且溶烯如具 較 , 水丁例, 度 制的反類液 濃 限酸,酸溶 的 別硝酸用水 液 特和果使之 溶 有酸蘋議一酸 酸 沒硫,建檬。或 液,酸,檸者液 溶酸二者和子溶 酸氟丙別酸粒鹼 氫,特草微 , 酸。,細 本紙張尺度適用中國國家標準(CNS>A4規格(210 X 297公釐) -7- 500831 A7 —…+__一 B7 經濟部智慧財產局員工消費合作社印製 五、發明說明(5 ) 量%,更佳者爲0.01至5'重量%。當濃度太低時,可 能不能充足地獲得洗滌致應。於濃度太高時,洗滌裝置或 其它相關裝置的金屬腐蝕可能爲之發生。 摻和著腐飩抑制劑的鹼溶液和酸溶液可以其本身形式 使用,或可再摻加其它效用液體其方式爲不損及該腐蝕抑 制劑的效應。特別者,該等溶液可以與經純化的液體例如 過氧化氫水溶液與氟化銨水溶液組合而有效地供半導體裝 置目的使用。 在使用摻有上述腐蝕抑制劑的淸潔液進行晶圓的淸潔 之中,可以應用浸液淸潔法其中係將晶圓直接浸於淸潔液 中;包括浸液淸潔法與超音波照射組合之方法;刷洗淸潔 法其中係在將淸潔液噴布於晶圓表面之同時刷洗其表面; 及包括刷洗淸潔與超音波照射的組合之方法。在淸潔時, 可將淸潔液加熱。 根據本發明,可以提出一種金屬腐蝕抑制劑其在透過 水介質影響人體健康和生態系統的可能性上比現用者較爲 低;及一種淸潔液其包括該腐蝕抑制劑作爲必需成分,其 適合用來淸潔物質如半導體裝置。 實施例 本發I要i照TB的實施例而更詳細地闡明,彼等實 施例不可視爲用以限制本發明範圍者。 實施例1和2及比較例1至5 (請先閱讀背面之注意事項再填寫本頁) 裝 訂· 線· 本紙張尺度適用中國國家標準(CNS)A4規格(210 X 297公釐) -8- 500831 ‘ A7 B7 五、發明說明(6 ) <請先閱讀背面之注意事項再填寫本.!) 將表1所示各預定量的本發明腐飩抑制劑摻加到作爲 淸潔液的0 · 1重量%氨水溶液中,由是製備個別的本發 明載有腐蝕抑制效應之淸潔液。爲了比較起見,也製備不 加任何腐鈾抑制劑的淸潔液,摻加從化學構造觀點類似本 發明腐蝕抑制劑的化合物之淸潔液,及摻加苯并三唑作爲 芳烴腐蝕抑制劑之淸潔液。將其上具有經由濺鍍方法形成 膜厚度爲1 Ο Ο Ο Ο A的c u膜之矽晶画作爲試件分別浸 到彼等淸潔液中3 0分鐘。在浸漬之前與之後皆測量該 C u膜的膜厚度,從膜厚度的差異計算溶解速率以判斷腐 蝕抑制效應。另一方面,在浸液之前與之後也用電子顯微 鏡觀察C u膜的表面以測定C u膜表面的狀態。於測量膜 厚度中,使用Napson. Co·所製的片材抵抗性(sheet reS1StibiHty )測量裝置以測量片材抵抗性,然後轉換成膜 厚度。 , 其結果摘列於表1之中。表1證實本發明腐飩抑制劑 對於抑制鹼溶液的銅腐蝕作用有顯著的效用,且在透過水 介質影響人類健康與生態系統的可能性上比現用者較爲低 ,因彼等不是如苯并三唑般的芳族化合物之故。 經濟部智慧財產局員工消費合作社印製 實施例3和4與比較例6和7 將本發明腐蝕抑制劑依表2中所示預定量分別摻加到 作爲淸潔液的0 · 1重量%氫氯酸水溶液或1重量%鹽酸 水溶液中,由是製備成個別的本發明載有腐蝕抑制作用之 淸潔液。爲比較起見,也製備沒有任何腐飩抑制劑的該等 本紙張尺度適用中國國家標準(CNS>A4規格(210 X 297公釐) -9- 500831 A7 L、發明說明(7 ) 淸潔液。將作爲試件的其上經由濺鍍法形成有膜厚度 1 0 0 0 0 A的C 11膜之矽晶圓分別浸到彼等淸潔液中 3 0分鐘。在浸液之前與之後都測量c u膜的膜厚度’並 從膜厚度的差異計算溶解速率以判斷腐蝕抑制效應。另一 方面,在浸液之前與之後也用電子顯微鏡觀察C u膜的表 面以測定C u膜表面的狀態。其結果皆列於中。表2 證實本發明腐蝕抑制劑對於抑制酸溶液中的銅腐蝕有顯著 的效用。 · 請 先 閱 讀 背 面 之 注 意 事 項 再 填 寫 本 •Ϊ 經濟部智慧財產局員工消費合作社印製
紙 t張尺度適用中國國家標準(CNS)A4規格(210 X 297公釐) 10· 500831 五、發明說明(8) 表名_ 實施例 比較例 實施例 比較例 3 6 4 7 淸潔液 * 7 氺7 *8 氺8 腐蝕抑制劑 類別 *1 - *1 擊 濃度(重量%) 0.05 0 0.05 0 評估結果 溶解速率(A /分) 5 15 0 16 表面狀態 〇 X 〇 X 註 , · t ί -n I n SI n n I n n n n i·— I · I I (請先閱讀背面之注意事項再填寫本頁) 訂· 腐蝕抑制劑 *1 ••硫甘油,SHCH2CH(OH)CH2(OH) *2 : 2 —氫硫基乙醇,SHCH2CH2(OH) •線- *3 :甘由,〇HCH2CH(〇H)CH2(OH) *4 :氫硫基乙酸;SHCH2COOH *5 :苯并三唑;C6H5N3 經濟部智慧財產局員工消費合作社印製 *6 : 3 —氫硫基一 1 —丙醇;SHCH2CH2CH2(OH) 淸潔液 *7 : 〇 · 1重量%氫氟酸 *8:1重量%鹽酸 表面狀態 〇:沒有變化 X :表面粗糙化 本紙張&度適用中國國家標準(CNS)A4規格(210 X 297公釐) -11 _
Claims (1)
- 500831經濟部智慈財產局員工消^合作社印製 ;、申請專利範園 feyL _ 附件1 : 第89100759號專利申請案 中文申請專利範圍修正本 民國90年12月修正 1 · 一種金屬腐蝕抑制劑,其包括一在分子中具有至 少一個氫硫基的脂族醇化合物,其中組成該醇化合物的碳 原子數不少於2,且鍵結著氫硫基的碳原子與鍵結著羥基 的另一碳原子係彼此相鄰地鍵結著。 2 ·如申請專利範圍第1項之腐蝕抑制劑,其中該脂 族醇化合物爲2 -氯硫基乙醇或硫甘油β 3 ·如申請專利範圔第1項之腐蝕抑制劑,其中該金 屬爲銅或銅合金。 4 · 一種清潔液組成物,其包括如申請專利範圍第1 項之腐蝕抑制劑及化合物之水溶液,該化合物係選自氫氧 化銨、氫氧化四甲銨、膽鹼、氫氯酸、氫氟酸、硫酸、硝 酸、草酸及檸檬酸,其中腐蝕抑制劑之濃度爲 〇·0001至10重量%。 5 .如申請專利範圔第4項之淸潔液組成物,其係用 以清潔半導體裝置· 6 1 一匆申請專利範圍第4項之清潔液組成物》其係用 以淸潔具有鋦線路的半導體裝置· 7 .如申請專利範圍第4項之淸潔液組成物其中該 淸潔液組成物爲一鹼溶液· 本紙張尺度逋用t國國家操舉(CNS ) A4規格(210X297公釐) ...1.. ........................ ........................................ ...................... 11-1 ............... —in -—-.-I- —in i------1 -------i tm-l-rh ....... ......I .. I Εϋ^__Η_^ (請先闐*t»背面之注意事項再填寫本f ) 500831 B8 C8 D8 六、申請專利範圍 8 ·如申請專利範圍第4項之淸潔液組成物,其中該 淸潔液組成物爲一酸溶液。 (請先聞讀背面之注意事項再填寫本頁) I— hN n I— n , •1T .·! 經濟部智慧財沒局昊工消費合作社印製 本紙浪尺度迷用中國國家梂準(CNS ) A4洗格(210X297公釐) -2-
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2000
- 2000-01-18 TW TW089100759A patent/TW500831B/zh not_active IP Right Cessation
- 2000-01-18 US US09/484,217 patent/US6200947B1/en not_active Expired - Lifetime
- 2000-01-18 KR KR1020000002233A patent/KR20000053521A/ko not_active Application Discontinuation
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CN107210215A (zh) * | 2015-02-12 | 2017-09-26 | 富士胶片株式会社 | Iii‑v族元素的氧化物的去除液及去除方法、iii‑v族元素的化合物的处理液、iii‑v族元素的抗氧化液、以及半导体基板的处理液及半导体基板产品的制造方法 |
US11145514B2 (en) | 2015-02-12 | 2021-10-12 | Fujifilm Corporation | Removal liquid and method for removing oxide of group III-V element, treatment liquid for treating compound of group III-V element, oxidation prevention liquid for preventing oxidation of group III-V element, treatment liquid for treating semiconductor substrate, and method for producing semiconductor substrate product |
CN107210215B (zh) * | 2015-02-12 | 2022-01-11 | 富士胶片株式会社 | Iii-v族元素抗氧化液、处理液、氧化物去除液及去除方法、半导体基板处理液及制造方法 |
TWI782891B (zh) * | 2015-02-12 | 2022-11-11 | 日商富士軟片股份有限公司 | Iii-v族元素的氧化物的去除液及去除方法、iii-v族元素的化合物的處理液、iii-v族元素的氧化防止液以及半導體基板的處理液及半導體基板製品的製造方法 |
Also Published As
Publication number | Publication date |
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KR20000053521A (ko) | 2000-08-25 |
US6200947B1 (en) | 2001-03-13 |
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