TWI515852B - 主動元件基板與其之製作方法 - Google Patents
主動元件基板與其之製作方法 Download PDFInfo
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- TWI515852B TWI515852B TW102115623A TW102115623A TWI515852B TW I515852 B TWI515852 B TW I515852B TW 102115623 A TW102115623 A TW 102115623A TW 102115623 A TW102115623 A TW 102115623A TW I515852 B TWI515852 B TW I515852B
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- release layer
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- inorganic
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- 239000000758 substrate Substances 0.000 title claims description 90
- 238000000034 method Methods 0.000 title claims description 65
- 238000004519 manufacturing process Methods 0.000 title claims description 13
- 239000000463 material Substances 0.000 claims description 25
- 238000005520 cutting process Methods 0.000 claims description 24
- 238000005229 chemical vapour deposition Methods 0.000 claims description 13
- 238000005240 physical vapour deposition Methods 0.000 claims description 11
- 238000004544 sputter deposition Methods 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- 229910044991 metal oxide Inorganic materials 0.000 claims description 8
- 150000004706 metal oxides Chemical class 0.000 claims description 8
- 229920000636 poly(norbornene) polymer Polymers 0.000 claims description 7
- 239000004697 Polyetherimide Substances 0.000 claims description 6
- 239000004642 Polyimide Substances 0.000 claims description 6
- 229910006404 SnO 2 Inorganic materials 0.000 claims description 6
- 229920001601 polyetherimide Polymers 0.000 claims description 6
- 229920001721 polyimide Polymers 0.000 claims description 6
- 238000007650 screen-printing Methods 0.000 claims description 6
- 238000004528 spin coating Methods 0.000 claims description 6
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 5
- -1 poly(p-phenylene benzobisoxazole) Polymers 0.000 claims description 5
- WHEVDDQAPKQQAV-UHFFFAOYSA-N 2-[4-(1h-benzimidazol-2-yl)phenyl]-1h-benzimidazole Chemical compound C1=CC=C2NC(C3=CC=C(C=C3)C=3NC4=CC=CC=C4N=3)=NC2=C1 WHEVDDQAPKQQAV-UHFFFAOYSA-N 0.000 claims description 3
- WRDNCFQZLUCIRH-UHFFFAOYSA-N 4-(7-azabicyclo[2.2.1]hepta-1,3,5-triene-7-carbonyl)benzamide Chemical compound C1=CC(C(=O)N)=CC=C1C(=O)N1C2=CC=C1C=C2 WRDNCFQZLUCIRH-UHFFFAOYSA-N 0.000 claims description 3
- 229920012266 Poly(ether sulfone) PES Polymers 0.000 claims description 3
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 3
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 claims description 3
- 229920003366 poly(p-phenylene terephthalamide) Polymers 0.000 claims description 3
- 229920000052 poly(p-xylylene) Polymers 0.000 claims description 3
- 239000004417 polycarbonate Substances 0.000 claims description 3
- 229920000515 polycarbonate Polymers 0.000 claims description 3
- 229910000077 silane Inorganic materials 0.000 claims description 3
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 claims description 2
- 229920000388 Polyphosphate Polymers 0.000 claims 1
- 239000011248 coating agent Substances 0.000 claims 1
- 238000000151 deposition Methods 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 claims 1
- 229920000927 poly(p-phenylene benzobisoxazole) Polymers 0.000 claims 1
- 239000001205 polyphosphate Substances 0.000 claims 1
- 235000011176 polyphosphates Nutrition 0.000 claims 1
- 239000010410 layer Substances 0.000 description 178
- XLOMVQKBTHCTTD-UHFFFAOYSA-N zinc oxide Inorganic materials [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 8
- 239000011787 zinc oxide Substances 0.000 description 8
- 239000011651 chromium Substances 0.000 description 6
- 239000010949 copper Substances 0.000 description 6
- 239000010931 gold Substances 0.000 description 6
- 238000000206 photolithography Methods 0.000 description 6
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 6
- 239000011241 protective layer Substances 0.000 description 6
- 239000004065 semiconductor Substances 0.000 description 6
- 229910052732 germanium Inorganic materials 0.000 description 5
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 5
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 229910052804 chromium Inorganic materials 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 4
- 229910052737 gold Inorganic materials 0.000 description 4
- 229910052750 molybdenum Inorganic materials 0.000 description 4
- 239000011733 molybdenum Substances 0.000 description 4
- 238000000059 patterning Methods 0.000 description 4
- 229910052709 silver Inorganic materials 0.000 description 4
- 239000004332 silver Substances 0.000 description 4
- 229910052718 tin Inorganic materials 0.000 description 4
- 239000010936 titanium Substances 0.000 description 4
- 239000011701 zinc Substances 0.000 description 4
- 239000010948 rhodium Substances 0.000 description 3
- MZLGASXMSKOWSE-UHFFFAOYSA-N tantalum nitride Chemical compound [Ta]#N MZLGASXMSKOWSE-UHFFFAOYSA-N 0.000 description 3
- 239000010409 thin film Substances 0.000 description 3
- ICXAPFWGVRTEKV-UHFFFAOYSA-N 2-[4-(1,3-benzoxazol-2-yl)phenyl]-1,3-benzoxazole Chemical compound C1=CC=C2OC(C3=CC=C(C=C3)C=3OC4=CC=CC=C4N=3)=NC2=C1 ICXAPFWGVRTEKV-UHFFFAOYSA-N 0.000 description 2
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 2
- 229910001069 Ti alloy Inorganic materials 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- CXKCTMHTOKXKQT-UHFFFAOYSA-N cadmium oxide Inorganic materials [Cd]=O CXKCTMHTOKXKQT-UHFFFAOYSA-N 0.000 description 2
- JAONJTDQXUSBGG-UHFFFAOYSA-N dialuminum;dizinc;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Al+3].[Al+3].[Zn+2].[Zn+2] JAONJTDQXUSBGG-UHFFFAOYSA-N 0.000 description 2
- 229910052733 gallium Inorganic materials 0.000 description 2
- 229910052738 indium Inorganic materials 0.000 description 2
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 2
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 238000001459 lithography Methods 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- JBQYATWDVHIOAR-UHFFFAOYSA-N tellanylidenegermanium Chemical compound [Te]=[Ge] JBQYATWDVHIOAR-UHFFFAOYSA-N 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- YVTHLONGBIQYBO-UHFFFAOYSA-N zinc indium(3+) oxygen(2-) Chemical compound [O--].[Zn++].[In+3] YVTHLONGBIQYBO-UHFFFAOYSA-N 0.000 description 2
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- FRIPRWYKBIOZJU-UHFFFAOYSA-N fluorone Chemical compound C1=CC=C2OC3=CC(=O)C=CC3=CC2=C1 FRIPRWYKBIOZJU-UHFFFAOYSA-N 0.000 description 1
- 229910052735 hafnium Inorganic materials 0.000 description 1
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 description 1
- 229910000449 hafnium oxide Inorganic materials 0.000 description 1
- WIHZLLGSGQNAGK-UHFFFAOYSA-N hafnium(4+);oxygen(2-) Chemical compound [O-2].[O-2].[Hf+4] WIHZLLGSGQNAGK-UHFFFAOYSA-N 0.000 description 1
- 230000005525 hole transport Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910001410 inorganic ion Inorganic materials 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 1
- 238000003698 laser cutting Methods 0.000 description 1
- 239000003094 microcapsule Substances 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920000470 poly(p-phenylene terephthalate) polymer Polymers 0.000 description 1
- 239000010453 quartz 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
- 229910052703 rhodium Inorganic materials 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 229910001925 ruthenium oxide Inorganic materials 0.000 description 1
- WOCIAKWEIIZHES-UHFFFAOYSA-N ruthenium(iv) oxide Chemical compound O=[Ru]=O WOCIAKWEIIZHES-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000007764 slot die coating Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
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- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
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- H10K77/10—Substrates, e.g. flexible substrates
- H10K77/111—Flexible substrates
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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
- H01L21/77—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate
- H01L21/78—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices
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- H01L21/7806—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices involving the separation of the active layers from a substrate
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- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
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- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body
- H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
- H01L27/1259—Multistep manufacturing methods
- H01L27/1262—Multistep manufacturing methods with a particular formation, treatment or coating of the substrate
- H01L27/1266—Multistep manufacturing methods with a particular formation, treatment or coating of the substrate the substrate on which the devices are formed not being the final device substrate, e.g. using a temporary substrate
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- H01L29/00—Semiconductor devices adapted for rectifying, amplifying, oscillating or switching, or capacitors or resistors with at least one potential-jump barrier or surface barrier, e.g. PN junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/02—Semiconductor bodies ; Multistep manufacturing processes therefor
- H01L29/04—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their crystalline structure, e.g. polycrystalline, cubic or particular orientation of crystalline planes
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- H01L29/02—Semiconductor bodies ; Multistep manufacturing processes therefor
- H01L29/12—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by the materials of which they are formed
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- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
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- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0277—Bendability or stretchability details
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- H05K1/02—Details
- H05K1/03—Use of materials for the substrate
- H05K1/0313—Organic insulating material
- H05K1/0353—Organic insulating material consisting of two or more materials, e.g. two or more polymers, polymer + filler, + reinforcement
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Description
本發明是有關於一種主動元件基板。
近年來,業界推出了以可撓性材料作為主動元件基板材質的顯示器,由於這種顯示器本身可彎折,因此可用來取代傳統的紙張或廣告看板。
由於主動元件基板的材質具可撓性,因此為了方便製程進行,製造者需要將可撓性基板固定在玻璃載板上後再形成主動元件,最後再將可撓性基板自玻璃載板剝離,即完成主動元件基板。然而當剝離可撓性基板時,可撓性基板與玻璃載板之間的吸附力可能會導致可撓性基板不易剝離,甚至可能會產生主動元件受損等狀況,因此如何改善主動元件基板的剝離製程成為業界需解決之問題之一。
一種主動元件基板,包含可撓性基板、無機離型層及至少一主動元件。可撓性基板具有相對之第一表面與第
二表面,其中第一表面為平坦表面。無機離型層覆蓋可撓性基板之第一表面。無機離型層的材質為金屬、金屬氧化物或上述組合。主動元件位於可撓性基板之第二表面上。
在一或多個實施方式中,無機離型層的材質為金屬,且無機離型層的厚度為約0.001至1微米,其中無機離型層的材質為金(Au)、銀(Ag)、鉑(Pt)、銅(Cu)、鈦(Ti)、鋁(Al)、鉻(Cr)、鉛(Pd)、銠(Rh)、鉬(Mo)、鎢(W)、鋅(Zn)、錫(Sn)或上述組合。
在一或多個實施方式中,無機離型層的材質為金屬氧化物,且無機離型層的厚度為約0.001至1微米,其中無機離型層的材質為In2O3、SnO2、ZnO、CdO、TiN、In2O3:Sn(ITO)、ZnO:In(IZO)、ZnO:Ga(GZO)、ZnO:Al(AZO)、SnO2:F、TiO2:Ta、CdIn2O4、Cd2SnO4、Zn2SnO4或上述組合。
在一或多個實施方式中,可撓性基板的材質為聚亞醯胺(polyimide,PI)、聚碳酸酯(polycarbonate,PC)、聚醚碸(polyethersulfone,PES)、聚原冰烯(polynorbornene,PNB)、聚醚亞醯胺(polyetherimide,PEI)、聚苯并咪唑(poly(p-phenylene benzobisimidazole),PBI)、聚苯并噁唑(poly(p-phenylene benzobisoxazole),PBO)、聚對苯二甲酰對苯二胺(poly(p-phenylene terephthalamide),PPTA)或上述組合。
本發明之另一態樣提供一種主動元件基板的製作方法,包含下列步驟(應瞭解到,在本實施方式中所提及的
步驟,除特別敘明其順序者外,均可依實際需要調整其前後順序,甚至可同時或部分同時執行):提供載板;形成有機離型層於載板上;形成無機離型層於有機離型層上,其中無機離型層的材質為金屬、金屬氧化物或上述組合;形成可撓性基板於無機離型層上,其中可撓性基板與無機離型層鄰接之一面為平坦表面;以及形成至少一主動元件於可撓性基板上。
在一或多個實施方式中,上述之製作方法更包含切割可撓性基板與無機離型層,以形成包含無機離型層、可撓性基板與主動元件之疊層結構;以及分開無機離型層與有機離型層。
在一或多個實施方式中,上述之製作方法更包含切割有機離型層。
在一或多個實施方式中,有機離型層之形成方法為物理氣相沉積法、化學氣相沉積法、旋轉塗佈法、網版印刷法或噴墨塗佈法。有機離型層之材質為聚對二甲苯(Parylene)、矽烷(Silane)、矽氧烷(Siloxane)、矽氟烷(FAS)或上述組合,無機離型層之形成方法為物理氣相沉積法、化學氣相沉積法或濺鍍法,上述之製作方法更包含在形成無機離型層前,對有機離型層進行加熱退火。
本發明之再一態樣提供一種顯示器的製作方法,包含上述之主動元件基板的製作方法,以及形成至少一顯示元件於至少一主動元件上。
在一或多個實施方式中,於形成顯示元件於主動元
件上之步驟前或形成顯示元件於主動元件上之步驟後,更包含切割可撓性基板與無機離型層以分開有機離型層與無機離型層。
上述之主動元件基板在製作時,因其可撓性基板與載板之間具有無機離型層與有機離型層,因此在主動元件基板製作完成後,利用無機離型層與有機離型層之間的弱吸附力,可使得主動元件基板更容易自載板上剝離下來,以減少主動元件受損的機率。
10‧‧‧疊層結構
50‧‧‧切割線
100‧‧‧載板
200‧‧‧有機離型層
300‧‧‧無機離型層
400‧‧‧可撓性基板
410‧‧‧第一表面
420‧‧‧第二表面
450‧‧‧緩衝層
500‧‧‧主動元件陣列
502、702‧‧‧主動元件
520、740‧‧‧閘極
530、730‧‧‧閘介電層
540、720‧‧‧通道層
550、750‧‧‧源極
560、760‧‧‧汲極
570、770‧‧‧保護層
572、772‧‧‧連接孔
600‧‧‧顯示元件
610‧‧‧第一電極
620‧‧‧畫素定義層
622‧‧‧畫素開口
630‧‧‧發光層
640‧‧‧第二電極
732‧‧‧第一開口
734‧‧‧第二開口
第1~7圖繪示依照本發明一實施方式之主動元件基板的製造流程剖面圖。
第8圖繪示本發明一實施方式之顯示器的剖面圖。
第9圖繪示本發明另一實施方式之顯示器的剖面圖。
以下將以圖式揭露本發明的複數個實施方式,為明確說明起見,許多實務上的細節將在以下敘述中一併說明。然而,應瞭解到,這些實務上的細節不應用以限制本發明。也就是說,在本發明部分實施方式中,這些實務上的細節是非必要的。此外,為簡化圖式起見,一些習知慣用的結構與元件在圖式中將以簡單示意的方式繪示之。
第1~7圖繪示依照本發明一實施方式之主動元件
基板的製造流程剖面圖。請先參照第1圖。如圖所示,製造者可先提供載板100。本實施方式之載板100可為硬質基板,如玻璃、石英或矽基板。
接著請參照第2圖。此時製造者可先於載板100上形成有機離型層200。製造者可選擇將有機離型層200全面形成覆蓋於載板100上。或者,製造者亦可依主動元件基板的尺寸,選擇形成於載板100上之有機離型層200的大小。基本上,只要能夠將主動元件基板製作於有機離型層200的上方,皆在本發明之範疇內。此外,在形成有機離型層200後,製造者可選擇對有機離型層200進行加熱退火以去除雜質,然本發明不以此為限。
上述之有機離型層200的材質可為聚對二甲苯(Parylene)、矽烷(Silane)、矽氧烷(Siloxane)、矽氟烷(FAS)或上述組合,而有機離型層200的形成方法可為物理氣相沉積法、化學氣相沉積法、旋轉塗佈法、網版印刷法或噴墨塗佈法。
接著請參照第3圖。此時製造者可形成無機離型層300於有機離型層200上,例如將無機離型層300全面包覆有機離型層200,然而此並不限制本發明。在部分實施方式中,所形成之無機離型層300亦可僅覆蓋部分之有機離型層200。基本上,只要製造者後續能夠將主動元件製作於無機離型層300與有機離型層200的上方,皆在本發明之範疇內。無機離型層300的形成方法可為物理氣相沉積法(例如:濺鍍法)或化學氣相沉積法。
接著請參照第4圖。此時製造者可於無機離型層300上形成可撓性基板400。製造者可選擇將可撓性基板400全面形成於有機離型層200與無機離型層300上,使得有機離型層200與無機離型層300皆被包覆於可撓性基板400與載板100之間,如第4圖所繪示。亦或者製造者可將可撓性基板400僅形成於部分的無機離型層300上。基本上,只要製造者後續能夠將主動元件製作於可撓性基板400、無機離型層300與有機離型層200的上方,皆在本發明之範疇內。
上述之可撓性基板400的材質舉例為聚亞醯胺(polyimide,PI)、聚碳酸酯(polycarbonate,PC)、聚醚碸(polyethersulfone,PES)、聚原冰烯(polynorbornene,PNB)、聚醚亞醯胺(polyetherimide,PEI)、聚苯并咪唑(poly(p-phenylene benzobisimidazole),PBI)、聚苯并噁唑(poly(p-phenylene benzobisoxazole),PBO)、聚對苯二甲酰對苯二胺(poly(p-phenylene terephthalamide),PPTA)或上述組合。而可撓性基板400的形成方法可為旋塗法(Spin Coating)、狹縫模具式塗佈法(slot-die coating)或壓合法(lamination)。
接著請參照第5圖。製造者可接著形成至少一主動元件於可撓性基板400上。主動元件例如可為薄膜電晶體(Thin-Film Transistor),且若本實施方式之主動元件基板應用於顯示器,則主動元件也可為複數個,例如形成主動元件陣列500於可撓性基板400上,以對應顯示器中的複數
個畫素單元。這些主動元件用以分別作為各個畫素單元的開關元件。而在第5圖的製程之後,無機離型層300、可撓性基板400與主動元件陣列500將構成主動元件基板。
接著請參照第6圖。製造者此時可進行切割步驟,以定義並切齊主動元件基板之邊界。詳細而言,製造者可沿著切割線50,至少切割可撓性基板400與無機離型層300,以定義包含無機離型層300、可撓性基板400與主動元件陣列500之疊層結構10,此疊層結構10即為主動元件基板。而上述之切割方式可為雷射切割或機械切割。
應注意的是,雖然上述之切割步驟僅切割至無機離型層300,然而在一或多個實施方式中,當進行切割步驟時,為了方便起見,有機離型層200也可一併進行切割。另外雖然在第6圖中之主動元件陣列500並未被切割,然而製造者也可依實際情況選擇是否一併切割主動元件陣列500,本發明不以此為限。
接著請參照第7圖。製造者此時可分開有機離型層200與無機離型層300,使得疊層結構10自有機離型層200上剝離下來。詳細而言,載板100與有機離型層200之間、有機離型層200與無機離型層300之間,以及無機離型層300與可撓性基板400之間皆具有不同的吸引力,這些吸引力使得上述各層之間能夠結合在一起。然而,因有機離型層200與無機離型層300之間的吸引力,較載板100與有機離型層200之間的吸引力,以及無機離型層300與可撓性基板400之間的吸引力皆來得小,使得當製造者剝離載
板100上之結構時,有機離型層200與無機離型層300之間會首先分開,也因此疊層結構10得以自載板100剝離。另一方面,在完成剝離製程後,有機離型層200仍附著於載板100上,而切割製程在有機離型層200所形成的切割痕跡在第7圖中以虛線表示。
因有機離型層200與無機離型層300之間的弱吸引力,製造者不需花費太大的力氣即可施行剝離製程,也因此本實施方式的主動元件基板之製作方法,在剝離過程中,能夠減少對位於無機離型層300上方的主動元件陣列500的損害。
因此,在第7圖的製程完成後,本實施方式之主動元件基板(即疊層結構10)包含無機離型層300、可撓性基板400與主動元件陣列500。可撓性基板400具有相對之第一表面410與第二表面420,其中第一表面410為平坦表面。無機離型層300全面覆蓋可撓性基板400之第一表面410,而主動元件陣列500則位於可撓性基板400之第二表面420上方。
在本實施方式中,無機離型層300的材質可為金屬、金屬氧化物或上述組合。因有機離型層200與主動元件基板10之無機離型層300的材質差異性較大,因此有機離型層200與無機離型層300之間的吸引力十分微弱,讓製造者在製程完成後可輕易地分開兩者。
詳細而言,在一或多個實施方式中,無機離型層300的材質可為金屬,例如金(Au)、銀(Ag)、鉑(Pt)、銅(Cu)、
鈦(Ti)、鋁(Al)、鉻(Cr)、鉛(Pd)、銠(Rh)、鉬(Mo)、鎢(W)、鋅(Zn)、錫(Sn)或上述組合。無機離型層300之分子間的吸引力主要是金屬鍵,而有機離型層200之分子間的吸引力主要是凡德瓦爾力(Van der Waals’ forces),這兩種不同型態的力會讓無機離型層300與有機離型層200之間的吸引力十分微弱,因此製造者在製程完成後可以很輕易地將兩者分開。當無機離型層300的材質為金屬時,無機離型層300的厚度可為約0.001至1微米。此外,若要無機離型層300呈現透明狀,無機離型層300的厚度可為約0.001至0.02微米。
在一或多個實施方式中,無機離型層300的材質亦可為金屬氧化物,例如:In2O3、SnO2、ZnO、CdO、TiN、In2O3:Sn(ITO)、ZnO:In(IZO)、ZnO:Ga(GZO)、ZnO:Al(AZO)、SnO2:F、TiO2:Ta、CdIn2O4、Cd2SnO4、Zn2SnO4或上述組合。當無機離型層300的材質為金屬氧化物時,無機離型層300的厚度可為約0.001至1微米。
接下來對本實施方式之顯示器的細節作詳細說明。請參照第8圖,其繪示本發明一實施方式之顯示器的剖面圖。在本實施方式中,主動元件502為底閘(bottom gate)型薄膜電晶體。主動元件502包含閘極520、閘介電層530、通道層540、源極550與汲極560。閘極520置於可撓性基板400上方。通道層540位於閘極520上方。閘介電層530介於通道層540與閘極520之間。源極550與汲極560置於通道層540上,並分別電性連接通道層540。
詳細而言,閘極520的材質可包含鈦、鉬、鉻、銥、鋁、銅、銀、金、鋅、銦、鎵等上述之組合或合金。製造者例如可先形成第一導電層,隨之以微影蝕刻製程圖案化此第一導電層,藉此在可撓性基板400上形成閘極520。第一導電層的形成方法可為物理氣相沉積法,如濺鍍法,或是化學氣相沉積法,而圖案化第一導電層的方法則可為微影蝕刻法、網版印刷法、噴墨法或雷射剝除法。
閘介電層530的材質可包含氮化矽、氧化矽、氮氧化矽或上述組合。而閘介電層530的形成方式可為例如化學氣相沉積法。
通道層540的材質可包含非晶矽、多晶矽、微晶矽、單晶矽、有機半導體(organic semiconductor)、氧化物半導體(oxide semiconductor)或上述組合。製造者例如可先形成半導體層,隨之以微影蝕刻製程圖案化此半導體層,藉此在閘介電層530上形成通道層540。半導體層的形成方法可為物理氣相沉積法,如濺鍍法,或是化學氣相沉積法,而圖案化半導體層的方法則可為微影蝕刻法、網版印刷法、噴墨法或雷射剝除法。
源極550與汲極560的材質可包含鈦、鉬、鉻、銥、鋁、銅、銀、金、鋅、銦、鎵等上述組合或合金。製造者例如可先形成第二導電層,此第二導電層全面覆蓋通道層540與閘介電層530。接著,製造者可圖案化此第二導電層,藉此於通道層540之兩側分別形成源極550與汲極560。第二導電層的形成方法可為物理氣相沉積法,如濺鍍法,或
是化學氣相沉積法。而圖案化第二導電層的方法則可為微影蝕刻法、網版印刷法、噴墨法或雷射剝除法。
而在一或多個實施方式中,可撓性基板400與主動元件502之間亦可形成緩衝層450。緩衝層450可完全覆蓋可撓性基板400,使可撓性基板400免於受後續製程的破壞。緩衝層450的材質可為氮化矽,而緩衝層450之形成方法可為物理氣相沉積法,如濺鍍法或是化學氣相沉積法。
另外,主動元件502可更包含保護層570。保護層570覆蓋閘介電層530、通道層540、源極550與汲極560。而為了使主動元件502與其他元件電性連接,保護層570可具有連接孔572,以暴露出汲極560。在本實施方式中,保護層570的材質可包含氮化矽、氧化矽、氮氧化矽或上述組合。保護層570的形成方式可為例如旋塗法,而形成連接孔572的方法可為微影蝕刻法(lithography and etching)。
主動元件502可作為顯示器之畫素的開關元件。以液晶顯示器而言,主動元件502之汲極560可電性連接一畫素電極,用以改變液晶分子的指向。以電激發光顯示器而言,主動元件502之汲極560可電性連接電激發光元件(如發光二極體或有機發光二極體)之一電極,以提供電激發光元件之驅動電壓。以電溼潤顯示器而言,主動元件502之汲極560可電性連接一畫素電極,以改變其極性分子的位置。而以電泳顯示器而言,主動元件502之汲極560可電性連接一畫素電極,用以改變其微膠囊中之彩色粒子的
位置。
因此,為了方便起見,在完成主動元件502的製程後,製造者可選擇繼續製作顯示器的顯示元件600。顯示元件600包含第一電極610、畫素定義層620、發光層630與第二電極640。第一電極610置於主動元件502上方,且與主動元件502之汲極560電性連接。畫素定義層620覆蓋第一電極610與主動元件502。畫素定義層620具有畫素開口622,以暴露出部分之第一電極610。發光層630置於第一電極610上,且位於畫素開口622內。第二電極640覆蓋發光層630以及畫素定義層620。
詳細而言,第一電極610的材質可包含銦錫氧化物、銦鋅氧化物、鋁鋅氧化物或上述組合。製造者例如可先在主動元件502上形成第三導電層,此第三導電層全面覆蓋主動元件502。接著,製造者可圖案化此第三導電層,藉此形成第一電極610。在本實施方式中,第三導電層的形成方法可為物理氣相沉積法,如濺鍍法或是化學氣相沉積法,而圖案化第三導電層的方式可為例如微影蝕刻法。
在本實施方式中,畫素定義層620的材質可包含有機材料、無機材料或上述組合。而畫素定義層620的形成方法例如為旋塗法,且形成畫素開口622的方法可為微影蝕刻法。
在一或多個實施方式中,發光層630的結構由第一電極610之一端依序可為電洞傳輸層、有機發光材料層與電子傳輸層,然而本發明並不以上述所形成之結構為限。
第二電極640的材質可包含銦錫氧化物、銦鋅氧化物、鋁鋅氧化物或上述組合。而第二電極640的形成方法可為物理氣相沉積法,如濺鍍法或是化學氣相沉積法。
然而上述之主動元件502的種類並非用以限制本發明,在一或多個實施方式中,主動元件可為頂閘(top gate)型薄膜電晶體。請參照第9圖,其繪示本發明另一實施方式之顯示器的剖面圖。主動元件702包含通道層720、閘介電層730、閘極740、源極750與汲極760。通道層720置於可撓性基板400上方。閘介電層730覆蓋通道層720。閘介電層730具有第一開口732與第二開口734,以分別暴露出部分之通道層720。閘極740置於閘介電層730上,使得閘介電層730介於通道層720與閘極740之間。源極750與汲極760置於閘介電層730上,並分別透過第一開口732與第二開口734而電性接觸通道層720。
主動元件702亦可作為顯示器之畫素單元的開關元件。即主動元件702的上方可再製作顯示元件600。至於其他的細節因與第8圖的實施方式相同,因此便不再贅述。
在一或多個實施方式中,切割步驟可在完成顯示元件600後進行。詳細而言,製作者在完成第4圖的製程後,接著可將第8圖或第9圖之主動元件502或702以及顯示元件600依序製作於可撓性基板400上。如第6圖所示,在完成顯示元件600後,即可進行切割步驟,其中切割步驟包含切割可撓性基板400與無機離型層300,以定義出疊層結構10的邊界。因此在本實施方式中,疊層結構10即
包含無機離型層300、可撓性基板400、主動元件502(或702)與顯示元件600。而在進行切割步驟後,藉由分開無機離型層300與有機離型層200,疊層結構10即可自載板100上剝離下來,以完成顯示器的製程。
然而在其他的實施方式中,切割步驟亦可於主動元件基板形成後以及顯示元件600(如第8圖與第9圖所繪示)形成前進行,即在完成主動元件基板後便進行切割步驟。詳細而言,製作者在完成第4圖的製程後,接著可將第8圖或第9圖之主動元件502或702製作於可撓性基板400上。之後進行切割步驟,如第6圖所示。製作者接著形成顯示元件600於主動元件502或702上。而在完成顯示元件600後,製作者可分開無機離型層300與有機離型層200,以完成顯示器的製程。
雖然本發明已以實施方式揭露如上,然其並非用以限定本發明,任何熟習此技藝者,在不脫離本發明之精神和範圍內,當可作各種之更動與潤飾,因此本發明之保護範圍當視後附之申請專利範圍所界定者為準。
10‧‧‧疊層結構
100‧‧‧載板
200‧‧‧有機離型層
300‧‧‧無機離型層
400‧‧‧可撓性基板
410‧‧‧第一表面
420‧‧‧第二表面
500‧‧‧主動元件陣列
Claims (8)
- 一種主動元件基板,包含:一可撓性基板,具有相對之一第一表面與一第二表面,其中該第一表面為一平坦表面;一無機離型層,覆蓋該可撓性基板之該第一表面,其中該無機離型層的材質為金屬氧化物,且該無機離型層的材質為In2O3、SnO2、ZnO、CdO、TiN、In2O3:Sn(ITO)、ZnO:In(IZO)、ZnO:Ga(GZO)、ZnO:Al(AZO)、SnO2:F、TiO2:Ta、CdIn2O4、Cd2SnO4、Zn2SnO4或上述組合;以及至少一主動元件,位於該可撓性基板之該第二表面上。
- 如請求項1所述的主動元件基板,其中該無機離型層的厚度為約0.001至1微米。
- 如請求項1所述的主動元件基板,其中該可撓性基板的材質為聚亞醯胺(polyimide,PI)、聚碳酸酯(polycarbonate,PC)、聚醚碸(polyethersulfone,PES)、聚原冰烯(polynorbornene,PNB)、聚醚亞醯胺(polyetherimide,PEI)、聚苯并咪唑(poly(p-phenylene benzobisimidazole),PBI)、聚苯并噁唑(poly(p-phenylene benzobisoxazole),PBO)、聚對苯二甲酰對苯二胺(poly(p-phenylene terephthalamide),PPTA)或上述組合,其中該無機離型層全面覆蓋該可撓性基板之該第一表面。
- 一種主動元件基板的製作方法,包含:提供一載板;形成一有機離型層於該載板上;形成一無機離型層於該有機離型層上,其中該無機離型層的材質為金屬、金屬氧化物或上述組合;形成一可撓性基板於該無機離型層上,其中該可撓性基板與該無機離型層鄰接之一面為一平坦表面;形成至少一主動元件於該可撓性基板上切割該可撓性基板與該無機離型層,以形成包含該無機離型層、該可撓性基板與該主動元件之一疊層結構;以及分開該有機離型層與該無機離型層。
- 如請求項4所述的製作方法,更包含:切割該有機離型層。
- 如請求項4所述的製作方法,其中該有機離型層之形成方法為物理氣相沉積法、化學氣相沉積法、旋轉塗佈法、網版印刷法或噴墨塗佈法,其中該有機離型層之材質為聚對二甲苯(Parylene)、矽烷(Silane)、矽氧烷(Siloxane)、矽氟烷(FAS)或上述組合,其中該無機離型層之形成方法為物理氣相沉積法、化學氣相沉積法或濺鍍法,該製作方法更包含:在形成該無機離型層前,對該有機離型層進行加熱退 火。
- 一種顯示器的製作方法,包含:如請求項4所述之主動元件基板的製作方法;以及形成至少一顯示元件於該至少一主動元件上。
- 如請求項7所述的製作方法,其中於形成該至少一顯示元件於該至少一主動元件上之步驟前或形成該至少一顯示元件於該至少一主動元件上之步驟後,更包含切割該可撓性基板與該無機離型層以分開該有機離型層與該無機離型層。
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