JP5713485B2 - 金属配線用エッチング液組成物 - Google Patents
金属配線用エッチング液組成物 Download PDFInfo
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- JP5713485B2 JP5713485B2 JP2010216591A JP2010216591A JP5713485B2 JP 5713485 B2 JP5713485 B2 JP 5713485B2 JP 2010216591 A JP2010216591 A JP 2010216591A JP 2010216591 A JP2010216591 A JP 2010216591A JP 5713485 B2 JP5713485 B2 JP 5713485B2
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K13/00—Etching, surface-brightening or pickling compositions
- C09K13/04—Etching, surface-brightening or pickling compositions containing an inorganic acid
- C09K13/10—Etching, surface-brightening or pickling compositions containing an inorganic acid containing a boron compound
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- 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
- C23F1/00—Etching metallic material by chemical means
- C23F1/10—Etching compositions
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- 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
- C23F1/00—Etching metallic material by chemical means
- C23F1/44—Compositions for etching metallic material from a metallic material substrate of different composition
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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
- H01L21/3205—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
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D30/00—Field-effect transistors [FET]
- H10D30/60—Insulated-gate field-effect transistors [IGFET]
- H10D30/67—Thin-film transistors [TFT]
- H10D30/6729—Thin-film transistors [TFT] characterised by the electrodes
- H10D30/6737—Thin-film transistors [TFT] characterised by the electrodes characterised by the electrode materials
- H10D30/6739—Conductor-insulator-semiconductor electrodes
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D86/00—Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates
- H10D86/01—Manufacture or treatment
- H10D86/021—Manufacture or treatment of multiple TFTs
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D86/00—Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates
- H10D86/40—Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates characterised by multiple TFTs
- H10D86/441—Interconnections, e.g. scanning lines
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D86/00—Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates
- H10D86/40—Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates characterised by multiple TFTs
- H10D86/60—Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates characterised by multiple TFTs wherein the TFTs are in active matrices
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Manufacturing & Machinery (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Inorganic Chemistry (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- ing And Chemical Polishing (AREA)
- Weting (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
- Thin Film Transistor (AREA)
Description
過酸化水素10重量%、酸化剤2重量%、フッ素化合物0.5重量%、キレート剤1重量%、硝酸系化合物1重量%、ホウ素系化合物0.1重量%、添加剤0.3重量%、前記組成物に加えて全体で100重量%まで脱イオン水を混合して、エッチング液組成物を製造した。
上記実施形態1と主な物質は同一であるが、下記の表1に表したように含有量は互いに異なる。
実施形態5〜実施形態8は、実施形態1と主な物質は同一であるが、下記の表2に表したように含有量は互いに異なる。
この時その原理は次の通りである。
Mo+3H2O2⇔Mo6 ++3H2O+3/2O2↑
エッチング:Cu2+、Mo6+は、F−イオンによって溶解する。
Mo6 ++F−⇔MoF6(hydroscopic、water soluble)
Ti+F−⇔TiF4(hydroscopic、water soluble)
したがって、上記反応式で表されるように、本発明のエッチング液は、銅膜(Cu)、銅合金膜(Cu Alloy)、チタニウム膜(Ti)、チタニウム合金膜(Ti Alloy)、モリブデン膜(Mo)、モリブデン合金膜(Mo Alloy)、またはこれらが積層された多重膜などの多様な金属膜に使用することができる。
Claims (6)
- 銅膜、銅合金膜、チタニウム膜、チタニウム合金膜、モリブデン膜、モリブデン合金膜、またはこれらが積層された多重膜である金属配線をエッチングするための金属配線用エッチング液組成物であって、
過酸化水素6乃至12重量%、酸化剤1乃至2重量%、フッ素化合物0.2乃至0.7重量%、硝酸系化合物0.5乃至3重量%、及びホウ素系化合物0.05乃至1重量%を含み、
前記酸化剤は、硫酸水素カリウム、硝酸ナトリウム、硫酸アンモニウム、硫酸ナトリウム、硫酸水素ナトリウム、またはこれらの混合物を含み、
前記フッ素化合物は、酸性フッ化アンモニウム、フッ化ケイ酸、フッ化水素カリウム、フッ酸、またはこれらの混合物を含み、
前記硝酸系化合物は、硝酸、硝酸カリウム、硝酸アンモニウム、硝酸ナトリウム、またはこれらの混合物を含み、
前記ホウ素系化合物は、ホウ酸、ホウ酸塩、酸化ホウ素、ボラゾール、またはこれらの混合物を含む、金属配線用エッチング液組成物。 - 前記エッチング液組成物が使用される金属配線が多重膜の場合には、銅を含む第1層と、チタニウムまたはモリブデンを含む第2層とを含む、請求項1に記載の金属配線用エッチング液組成物。
- 前記エッチング液組成物は、キレート剤0.1乃至5重量%をさらに含み、
前記キレート剤は、EDTA、イミノジアセト酸、ニトリロトリ酢酸、ジエチレントリニトリロペンタ酢酸、またはこれらの混合物を含む、請求項1に記載の金属配線用エッチング液組成物。 - 前記キレート剤は、アミノ基及びカルボキシル基を含む有機キレート剤を含む、請求項3に記載の金属配線用エッチング液組成物。
- 前記エッチング液組成物は、添加剤0.1乃至5重量%をさらに含み、
前記添加剤は、アゾール系化合物である5−アミノテトラゾール、1,2,3−ベンゾトリアゾール、メチルベンゾトリアゾール、イミダゾール、過水安定剤、またはこれらの混合物を含む、請求項1に記載の金属配線用エッチング液組成物。 - ゲート電極を含むゲート線を形成する段階と、
前記ゲート線と交差するデータ線を形成する段階と、
前記ゲート電極と重畳する半導体を形成する段階とを含み、
前記ゲート線を形成する段階及び前記データ線を形成する段階のうちの少なくとも一つは、銅を含む多層膜を積層する段階と、
前記多層膜を一括してエッチングする段階とを含み、
前記多層膜を一括してエッチングする段階は、
請求項1〜5のいずれかに記載のエッチング液組成物を使用する薄膜トランジスタ表示板の製造方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2010-0036364 | 2010-04-20 | ||
KR1020100036364A KR101825493B1 (ko) | 2010-04-20 | 2010-04-20 | 금속 배선용 식각액 조성물 및 이를 이용한 박막 트랜지스터 표시판의 제조방법 |
Publications (3)
Publication Number | Publication Date |
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JP2011228618A JP2011228618A (ja) | 2011-11-10 |
JP2011228618A5 JP2011228618A5 (ja) | 2013-10-24 |
JP5713485B2 true JP5713485B2 (ja) | 2015-05-07 |
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Application Number | Title | Priority Date | Filing Date |
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JP2010216591A Active JP5713485B2 (ja) | 2010-04-20 | 2010-09-28 | 金属配線用エッチング液組成物 |
Country Status (3)
Country | Link |
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US (1) | US8894876B2 (ja) |
JP (1) | JP5713485B2 (ja) |
KR (1) | KR101825493B1 (ja) |
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JP5798939B2 (ja) * | 2012-01-25 | 2015-10-21 | 富士フイルム株式会社 | エッチング方法、およびこれに用いられるエッチング液 |
CN102703902B (zh) * | 2012-06-26 | 2014-01-01 | 深圳市华星光电技术有限公司 | Tft阵列基板铜导线的蚀刻液 |
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JP2011228618A (ja) | 2011-11-10 |
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US20110256712A1 (en) | 2011-10-20 |
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