TW200532336A - Method for manufacturing a transparent element with invisible electrodes - Google Patents

Method for manufacturing a transparent element with invisible electrodes Download PDF

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TW200532336A
TW200532336A TW093137662A TW93137662A TW200532336A TW 200532336 A TW200532336 A TW 200532336A TW 093137662 A TW093137662 A TW 093137662A TW 93137662 A TW93137662 A TW 93137662A TW 200532336 A TW200532336 A TW 200532336A
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Joachim Grupp
Gian-Carlo Poli
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Asulab Sa
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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03FPHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F7/00Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C17/00Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/34Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
    • C03C17/3411Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions with at least two coatings of inorganic materials
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C17/00Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/34Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
    • C03C17/3411Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions with at least two coatings of inorganic materials
    • C03C17/3417Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions with at least two coatings of inorganic materials all coatings being oxide coatings
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C17/00Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/34Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
    • C03C17/3411Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions with at least two coatings of inorganic materials
    • C03C17/3429Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions with at least two coatings of inorganic materials at least one of the coatings being a non-oxide coating
    • C03C17/3447Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions with at least two coatings of inorganic materials at least one of the coatings being a non-oxide coating comprising a halide
    • C03C17/3452Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions with at least two coatings of inorganic materials at least one of the coatings being a non-oxide coating comprising a halide comprising a fluoride
    • GPHYSICS
    • G04HOROLOGY
    • G04BMECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B39/00Watch crystals; Fastening or sealing of crystals; Clock glasses
    • G04B39/002Watch crystals; Fastening or sealing of crystals; Clock glasses made of glass
    • GPHYSICS
    • G04HOROLOGY
    • G04BMECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B39/00Watch crystals; Fastening or sealing of crystals; Clock glasses
    • G04B39/004Watch crystals; Fastening or sealing of crystals; Clock glasses from a material other than glass
    • G04B39/006Watch crystals; Fastening or sealing of crystals; Clock glasses from a material other than glass out of wear resistant material, e.g. sapphire
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C2217/00Coatings on glass
    • C03C2217/70Properties of coatings
    • C03C2217/73Anti-reflective coatings with specific characteristics
    • C03C2217/734Anti-reflective coatings with specific characteristics comprising an alternation of high and low refractive indexes
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C2217/00Coatings on glass
    • C03C2217/90Other aspects of coatings
    • C03C2217/94Transparent conductive oxide layers [TCO] being part of a multilayer coating
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C2218/00Methods for coating glass
    • C03C2218/30Aspects of methods for coating glass not covered above
    • C03C2218/32After-treatment
    • C03C2218/328Partly or completely removing a coating
    • C03C2218/33Partly or completely removing a coating by etching
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C2218/00Methods for coating glass
    • C03C2218/30Aspects of methods for coating glass not covered above
    • C03C2218/34Masking
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03KPULSE TECHNIQUE
    • H03K17/00Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/96Touch switches
    • H03K17/962Capacitive touch switches
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S977/00Nanotechnology
    • Y10S977/70Nanostructure
    • Y10S977/811Of specified metal oxide composition, e.g. conducting or semiconducting compositions such as ITO, ZnOx

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
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  • Geochemistry & Mineralogy (AREA)
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  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Surface Treatment Of Glass (AREA)
  • Manufacturing Of Electric Cables (AREA)
  • Chemical Vapour Deposition (AREA)
  • Non-Insulated Conductors (AREA)
  • Laminated Bodies (AREA)
  • Position Input By Displaying (AREA)
  • Led Devices (AREA)
  • Physical Vapour Deposition (AREA)

Description

200532336 (1) 九、發明說明 【發明所屬之技術領域】 本發明係關於一種製造包含電極的透明元件之 該等電極的外形因裝置也提供抗反射效果的一種特 介電材料,而在可見光範圍內無法看見。 【先前技術】 “透明元件”不具限定性地意指有透明電極的 錶玻璃、觸控螢幕,例如係經構成於錶玻璃上,或 在液晶顯示器電池或光電電池(photovoltaic cell 明面板上者。 抗反射效果係以習知方式藉由在透明基板(S 成堆疊而獲致,該堆疊係包含至少一層具有高折象 )的透明介電材料與一層有低折射率(L )的第二 一種上述類型的方法在例如法國專利第2 7 5 1 中有揭示。對一玻璃基板經由LPCVD用Ti02 ( n = 薄膜的氣相前驅物予以塗覆,然後塗覆較厚的 η=1 .46 )膜,可重覆該操作第二次,其導致可槪 SHLHL”之順序。 相同類型之順序也在美國專利第5,1 7 0,2 9 1號 但採用不同的介電質,一所給實施例包括依序爲 η = 2·4) /Al2〇3 ( n = l .6 ) /Ti02 ( n = 2.4 ) /Si02 ( n = ,其對應至順序“ SHLiHL/’ 。 方法, 定透明 目鏡、 甚至是 )之透 )上形 [率(Η 介電材 63 8號 = 2.3 5) Si02 ( 述爲“ 發現, Ti〇2 ( = 1.48) 200532336 (2) 當透明基板必須包括例如數個電極以在腕錶的玻璃內 形成一電容式觸控螢幕於時,要沉積一 ITO薄膜或另一透 明導電氧化物(TCO )於最後介電層上,再用有低折射率 的介電材料之最終塗層構成。此方法因而可用順序“ SHL! ( TCO ) L2”表示。其可產生良好的結果,亦即其能 使電極實際上隱形,但有數個缺點。第一,因爲必須用 CVD或等效方法沈積多層不同薄膜以致相當昂貴。此方 法也難以具體實作,特別是在構成電極的步驟期間,最後 介電層損壞的風險很高因而產生干涉性的新問題,致使某 些電極的外形仍可看見。最後可觀察到有低折射率的最後 介電層,通常爲MgF2 ( η=1·37 ),具有低耐磨性,使得 該層在裝上腕錶的觸控螢幕的作業期間也有被損壞的風險 【發明內容】 因此,本發明的目標是要藉由提供一種可實施以得到 更容易處理的最終產品之較容易且經濟的方法以克服上述 先前技術的缺點。本發明也更特別地關於其中該透明元件 係由藍寶石或增韌玻璃製成的透明基板所形成且在其一面 上包括一用以形成電容式感測器之電極結構的情況。 本發明因而關於一種方法,包括在一透明基板上形成 一由透明導電氧化物(TC Ο )製成的包括電極、導電途徑 、與接觸區之導電圖樣,然後沈積有低折射率(L )的第 一透明介電層,接著有折射率比第一層更高的第二層另一 -5- 200532336 (3) 透明介電質。 相對上文開始處所述先前技術,可總結本發明方法 爲·以對應於‘‘ s ( TC 〇 ) ”之順序得到具有隱形電極 之透明元件。 本方法可得到非常良好的抗反射性質,且有優越的光 學補償性(optical compensati〇n)以及遠更爲好的耐磨性 ’也能選擇形成最外層所用之介電材料。 在一較佳具體實例中,該基板係由藍寶石或增韌玻璃 製成且該方法可用來得到電容式觸控螢幕,特別是用於形 成必須完全透明之錶玻璃以便可淸楚地辨認錶面顯示的資 訊者。 【實施方式】 第1圖顯示要裝在腕錶上,由藍寶石或增韌玻璃製成 之玻璃1之底部視圖,該玻璃1係由透明基板3形成,其 包括透明導電氧化物(TC Ο )之圖樣,形成電容觸控型感 測器2之電極,其可用手指觸及玻璃]外表面而啓動,該 等感測器2係以導電途徑4連接至周圍的接觸區6,該等 接觸區6本身係連接至用於控制時間或非時間相關性功能 的腕錶且/或微處理器之電子運動。雖然第1圖中的對比 有大幅地誇大,不過,如果未加處理,所有該等導電性元 件2、4、6都可通過玻璃1看見,特別是斜角觀察時。 至此請參考第2圖,下文係說明本發明方法,其使可 用凸緣或溝緣隱藏住的感測器2、導電途徑4、或比較不 -6- 200532336 (4) 必要的接觸區6成爲看不到者。 在第一步驟中’於藍寶石或增韌玻璃基板3的整個表 面上塗覆一 TCO薄膜。例如,進行錫與銦氧化物(ITO ) 的氣相沈積,厚度在2 5奈米與7 5奈米之間,較佳者在 45奈米與55奈米之間。該TCO層也可從摻有銻的In2〇3 與Sn02選出。然後,進行化學蝕刻以去除所有未對應至 的感測器2、導電途徑4、與接觸區6的區域內之TCO。 然後,用適當的溶劑藉由超聲波剝除殘餘遮罩部份。 在第二步驟中,將基板導到一密閉室內且隨後由標的 物用已知的氣相沈積技術(PVD )或相關的技術(PACVD ,PECVD,LICVD,等)沈積第一層5有低折射率(L) 之透明介電質。當TCO爲ITO時,較佳者係藉由使基板 3 (包括導電圖樣2、4、6 )在氧分壓下處於約25 (TC的溫 度下進行此沉積。 在第三步驟中,仍將該基板保持在同一密閉室中並且 用相同的方法進行有比第一層5更高的折射率(Η )之另 一透明介電層的第二層7之沉積。 可用來形成第一層與第二層的介電材料均爲習知的化 合物,例如可由以下的化合物選出者,以遞增的折射率分 類:MgF2、LiF、Si〇2、SiOx、Al〇3、Si3N4、ZnS、Ti02 、AIN、Ta2〇5、及 DLC (似鑽石碳)。 例如,當以PVD進行沉積時,可用氟化鎂或氟化鋰 於具有低折射率(L )的第一層5,亦即分別地,MgF2 : η = 1.37,與LiF: η = ].39。此第一層具有在50奈米與100 -7- 200532336 (5) 奈米之間的厚度,較佳者約6 0奈米。 爲形成第一層7 ’選用有較局折射率的介電材料,例 如鋁(η = 1 · 7 0 ),五氧化鉬(η = 2.4 )或似鑽石碳。第二 層7的厚度在8奈米與2 5奈米之間,較佳者約1 6奈米。 此第二最外層也有良好的耐磨性之優點。 此兩介電質沈積步驟’先用低折射率,然後用較高的 折射率,可重覆至少一次,對應於順序s ( TCO ) LHLH。 在本發明的範圍內,也可使用其他的L/H介電配對, 包括其中順序爲 S ( TCO ) LHLH的情形,例如 Si02/Si2N4或A120 3/A1N。此後述例子也顯示,若與有較 低折射率的第二介電層相關聯時,可以考慮相同的介電質 ,於此例中爲A12 Ο 3,作爲“ Η ”型,或者相反地,若其 係與有較高折射率(Α1Ν ·· η = 2·3 8 )的第二介電層相關聯 時,作爲“ L”型。 【圖式簡單說明】 於下面參考所附圖式的以非限制性闡述方式所給出的 說明中,可瞭解本發明其他的特性和優點。 第】圖係包括電容觸控型感測器的錶玻璃之底面視圖 ,及 弟2圖爲弟1圖中沿線I卜11的有諸不同層之堆疊的 斷面圖。 【主要元件符號說明】 -8- 200532336 (6) 1 2 3 4 5 6 7 玻璃 感測器(電極) 透明基板 導電途徑 第一層 接觸區 第二層
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Claims (1)

  1. 200532336 (1) 十、申請專利範圍 1 · 一種製造具有隱形電極之透明元件的方法,係藉由 在一透明基板的一面上形成由電極,導電途徑、與接觸區 形成之導電圖樣,其中該方法包括下列諸步驟: - 於該基板整個表面上沈積一透明導電氧化物薄膜 (TCO ) ’通過一遮罩經由蝕刻去除沒有形成該導電圖樣 的區域之TCO ’然後去除該遮罩之殘餘部份, - 沈積第一層有低折射率(L )之透明介電材料, 沈積第二層有相對於該第一層較高折射率(H ) 的另一透明介電材料。 2 ·根據申請專利範圍第1項之方法,其中該透明導電 氧化物係一錫與銦氧化物(IΤ Ο )。 3 ·根據申請專利範圍第2項之方法,其中在進行第一 介電層的沈積之前,先在氧分壓下使該基板達到約25〇t; 之溫度。 4.根據申請專利範圍第1項之方法,其中係於同一封 閉室中進行該介電質的沈積(L,Η )。 5 ·根據申請專利範圍第1項之方法,其中該第一層與 第二層之介電質係由以下以遞增折射率次序分類的化合物 中選出:MgF2、LiF、Si02、SiOx、AI〇3、Si3N4、ZnS、 Ti〇2、A]N、Ta2〇5、及 DLC (似鑽石碳)。 6 ·根據申請專利範圍第5項之方法,其中該第一層之 介電質係氟化鎂或氟化鋰且該第二層之介電質爲氧化鋁、 五氧化鉅或似鑽石碳。 -10- 200532336 (2) 7 .根據申請專利範圔第1項之方法’ 有在5 0奈米與1 〇〇奈米之間的厚度’較七 且其中該第二層具有在8奈米與25奈米 佳者約1 6奈米。 8 ·根據申請專利範圍第1項之方法’ 係由藍寶石或增韌玻璃製成。 9.根據申請專利範圍第1至8項中任 中該等介電之沈積係於保持L、Η順序之 〇 1 〇 .根據申請專利範圍第1項之方法 係形成一電容式觸控螢幕之感測器。 1 1 ·根據申請專利範圍第1項之方法 件係一腕錶玻璃。 其中該第一層具 :者約60奈米, 之間的厚度,較 其中該透明基板 一項之方法,其 下重覆至少一次 ,其中該等電極 ,其中該透明元
TW093137662A 2003-12-16 2004-12-06 Method for manufacturing a transparent element with invisible electrodes TW200532336A (en)

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KR101133329B1 (ko) 2012-04-05
HK1076094A1 (en) 2006-01-06
JP2005183386A (ja) 2005-07-07
EP1544178B1 (fr) 2009-08-12
CN1636914A (zh) 2005-07-13
KR20050061314A (ko) 2005-06-22
US7247568B2 (en) 2007-07-24
DE60328798D1 (de) 2009-09-24
US20050130400A1 (en) 2005-06-16
EP1544178A1 (fr) 2005-06-22
ATE439335T1 (de) 2009-08-15
JP4689259B2 (ja) 2011-05-25
CN100478293C (zh) 2009-04-15

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