WO2004061521A1 - 電子装置製造方法及び電子装置 - Google Patents
電子装置製造方法及び電子装置 Download PDFInfo
- Publication number
- WO2004061521A1 WO2004061521A1 PCT/JP2003/016652 JP0316652W WO2004061521A1 WO 2004061521 A1 WO2004061521 A1 WO 2004061521A1 JP 0316652 W JP0316652 W JP 0316652W WO 2004061521 A1 WO2004061521 A1 WO 2004061521A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- conductive
- film
- electronic device
- electrode
- gate
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 59
- 238000000034 method Methods 0.000 title claims abstract description 42
- 239000011248 coating agent Substances 0.000 claims abstract description 59
- 238000000576 coating method Methods 0.000 claims abstract description 59
- 229910052751 metal Inorganic materials 0.000 claims abstract description 35
- 239000002184 metal Substances 0.000 claims abstract description 35
- 239000000758 substrate Substances 0.000 claims description 168
- 238000005530 etching Methods 0.000 claims description 54
- 239000000463 material Substances 0.000 claims description 52
- 238000001039 wet etching Methods 0.000 claims description 32
- 150000002736 metal compounds Chemical class 0.000 claims description 26
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 12
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 6
- 235000012239 silicon dioxide Nutrition 0.000 claims description 6
- 239000000377 silicon dioxide Substances 0.000 claims description 6
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 6
- 229910052750 molybdenum Inorganic materials 0.000 claims description 5
- NCPLSTPWDHIRQG-UHFFFAOYSA-N [Mo+4].[O-2].[Cr+3] Chemical compound [Mo+4].[O-2].[Cr+3] NCPLSTPWDHIRQG-UHFFFAOYSA-N 0.000 claims description 4
- 150000002739 metals Chemical class 0.000 claims description 3
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims 2
- 229910052782 aluminium Inorganic materials 0.000 claims 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims 2
- 239000011733 molybdenum Substances 0.000 claims 2
- 229910003437 indium oxide Inorganic materials 0.000 claims 1
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 claims 1
- 239000004020 conductor Substances 0.000 abstract description 3
- 229910015202 MoCr Inorganic materials 0.000 description 171
- 238000006243 chemical reaction Methods 0.000 description 97
- 239000010410 layer Substances 0.000 description 89
- 229910021417 amorphous silicon Inorganic materials 0.000 description 29
- 239000000243 solution Substances 0.000 description 28
- 230000002093 peripheral effect Effects 0.000 description 20
- 239000004973 liquid crystal related substance Substances 0.000 description 17
- 229910016570 AlCu Inorganic materials 0.000 description 15
- 239000002356 single layer Substances 0.000 description 13
- 230000015572 biosynthetic process Effects 0.000 description 12
- 239000002585 base Substances 0.000 description 11
- 239000011347 resin Substances 0.000 description 11
- 229920005989 resin Polymers 0.000 description 11
- 238000000206 photolithography Methods 0.000 description 10
- 239000011521 glass Substances 0.000 description 7
- 238000000059 patterning Methods 0.000 description 7
- 230000000116 mitigating effect Effects 0.000 description 6
- 239000011651 chromium Substances 0.000 description 5
- 229910001316 Ag alloy Inorganic materials 0.000 description 4
- 239000012528 membrane Substances 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 4
- 229910015269 MoCu Inorganic materials 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 201000005569 Gout Diseases 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000001312 dry etching Methods 0.000 description 2
- 239000008151 electrolyte solution Substances 0.000 description 2
- 229910052738 indium Inorganic materials 0.000 description 2
- 229910000476 molybdenum oxide Inorganic materials 0.000 description 2
- PQQKPALAQIIWST-UHFFFAOYSA-N oxomolybdenum Chemical compound [Mo]=O PQQKPALAQIIWST-UHFFFAOYSA-N 0.000 description 2
- NAWXUBYGYWOOIX-SFHVURJKSA-N (2s)-2-[[4-[2-(2,4-diaminoquinazolin-6-yl)ethyl]benzoyl]amino]-4-methylidenepentanedioic acid Chemical compound C1=CC2=NC(N)=NC(N)=C2C=C1CCC1=CC=C(C(=O)N[C@@H](CC(=C)C(O)=O)C(O)=O)C=C1 NAWXUBYGYWOOIX-SFHVURJKSA-N 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 101150107341 RERE gene Proteins 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- IPDVFXZDWDPGAA-UHFFFAOYSA-N chromium;oxomolybdenum Chemical compound [Cr].[Mo]=O IPDVFXZDWDPGAA-UHFFFAOYSA-N 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 210000002816 gill Anatomy 0.000 description 1
- 230000012447 hatching Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229930192419 itoside Natural products 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000001459 lithography Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000036647 reaction Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1345—Conductors connecting electrodes to cell terminals
- G02F1/13458—Terminal pads
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
-
- 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
- H01L21/311—Etching the insulating layers by chemical or physical means
- H01L21/31144—Etching the insulating layers by chemical or physical means using masks
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—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 potential barriers; including integrated passive circuit elements having potential barriers
- 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 potential barriers; including integrated passive circuit elements having potential barriers 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 potential barriers; including integrated passive circuit elements having potential barriers 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
- H01L27/124—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 potential barriers; including integrated passive circuit elements having potential barriers 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 with a particular composition, shape or layout of the wiring layers specially adapted to the circuit arrangement, e.g. scanning lines in LCD pixel circuits
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/66007—Multistep manufacturing processes
- H01L29/66075—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials
- H01L29/66227—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials the devices being controllable only by the electric current supplied or the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched, e.g. three-terminal devices
- H01L29/66409—Unipolar field-effect transistors
- H01L29/66477—Unipolar field-effect transistors with an insulated gate, i.e. MISFET
- H01L29/66742—Thin film unipolar transistors
- H01L29/6675—Amorphous silicon or polysilicon transistors
- H01L29/66765—Lateral single gate single channel transistors with inverted structure, i.e. the channel layer is formed after the gate
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—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 potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/0203—Particular design considerations for integrated circuits
- H01L27/0248—Particular design considerations for integrated circuits for electrical or thermal protection, e.g. electrostatic discharge [ESD] protection
Definitions
- the present invention relates to a method for manufacturing an electronic device having a plurality of electrically connected conductive parts and an electronic device to which the method is applied.
- various conductive films constituting a gate bus, a gate terminal, and the like are exposed on the surface of the support on which the photosensitive film is applied. Therefore, when the photosensitive film is exposed and developed, unnecessary portions of the photosensitive film are removed by the developing solution during the development of the photosensitive film, and as a result, various conductive films covered with the photosensitive film are exposed. Then, the developer contacts the exposed various conductive films. As described above, when the developing solution comes into contact with various conductive films, a phenomenon may occur in which the photosensitive film is removed more than necessary, or the conductive film that is in contact with the developing solution is damaged. .
- a coating film is formed on the surface of the substrate before forming the photosensitive film. Therefore, even if an unnecessary portion of the photosensitive film is removed by developing the photosensitive film, the conductive portion covered with the coating film does not come into contact with the developer. As a result, the conductive portion covered with the coating film does not act as an anode or a force source, and can prevent a battery reaction. By thus preventing the battery reaction from occurring, it is possible to prevent the photosensitive film from being removed more than necessary and to prevent the conductive portion from being damaged.
- the step of forming the first conductive portion owner includes forming the first and second conductive portions on a support such that the second conductive portion overlaps the second conductive portion. May be included.
- the step of forming the first conductive member may include a step of forming an insulating film on the support before the step of forming the first and second conductive members. .
- the first and second conductive parts exposed on the surface of the second conductive part holder have first and second balanced electrode potentials, respectively. Contains first and second metals or metal compounds. Further, a photosensitive film is formed on the conductive part holder having the first and second conductive parts exposed on the surface. Therefore, when the photosensitive film is developed, a part of the photosensitive film is removed. As a result, when the first and second conductive portions come into contact with the developing solution, the first and second conductive portions are removed. The part acts as an anode or force sword and a battery reaction occurs. If the battery reaction is accelerated in the conductive part, the conductive part itself may be damaged or the photosensitive film may be removed more than necessary.
- the location where the battery reaction occurs Can be dispersed not only in the conductive portion of the above but also in the sacrificial electrode.
- the sacrificial electrode for example, may be directly connected to one of the first and second conductive parts, or may be integrally formed with one of the first and second conductive parts.
- the step of forming the second conductive part holder includes, for example, a step of forming the first and second conductive parts such that the second conductive part overlaps the first conductive part. Or forming the first and second conductive parts so that the first conductive part is electrically connected to the second conductive part through a hole in an insulating film.
- An electronic device manufacturing method comprising: a sacrificial electrode electrically connected to the first conductive portion, in addition to the second conductive portion, wherein the sacrificial electrode is formed in addition to the second conductive portion. Then, the conductive film is subjected to wet etching.
- the conductive film is formed so as to cover the first conductive portion, and the wet etching step exposes at least a part of the first conductive portion.
- the method is particularly effective when the conductive film is subjected to the wet etching. After the wet etching step, a part of the first conductive portion may be removed.
- the first electronic device of the present invention comprises: a first conductive portion containing a first metal or metal compound having a first balanced electrode potential; and a second metal or metal having a second balanced electrode potential.
- a first base containing a compound and having a second conductive part electrically connected to the first conductive part; a base layer formed on the first base; and a surface of the base layer.
- An electronic device comprising: a formed reflecting portion having a plurality of concave portions or convex portions; and a cover portion provided at a position corresponding to the plurality of concave portions or convex portions; An underlayer main body formed of a conductive material and covering the covering portion.
- FIG. 6 is a sectional view taken along the line III-III of FIG.
- FIG. 9 is a cross-sectional view taken along the line IV-IV shown in FIG.
- FIG. 24 is a cross-sectional view showing a substrate on which a gate electrode 201, a gate insulating film 202, an a-Si layer 203, and a protective film 204 are formed.
- FIG. 37 is a cross-sectional view taken along the line VI-VI of FIG.
- FIG. 38 is a cross-sectional view of the substrate on which the conductive film 93 is formed.
- FIG. 50 is a cross-sectional view of the substrate on which the conductive film 93 is formed.
- FIG. 84 is a partial plan view of a TFT array substrate 500 according to the fifth embodiment of the present invention used in a reflective liquid crystal display device having a top gate structure.
- FIG. 100 is a cross-sectional view of the substrate of FIG. 98 as seen from the VIII-VIII direction.
- the gate insulating film 8 After the formation of the a—Si layer 7, the gate insulating film 8 is formed.
- This gate insulating film 8 has holes 8a, 8b and 8c.
- the hole 8 a is a hole for exposing the drain electrode 4.
- the hole 8b is a hole for exposing the connecting portion 51a of the gate bus end 51.
- the hole 8c is a hole for exposing the MoCr unnecessary portion 26a covering the gate terminal 6. 'After forming the gate insulating film 8, that to form a conductive film by using a material such as gut-electrode (see FIG. 7) D
- the A 1 Cu film 9 2 ′ acts as an anode, and the reaction formula (2) that emits electrons (e ⁇ ) occurs preferentially. It is conceivable that.
- the MoCr film 91 ′ acts as a force source, and the reaction formula (3) for receiving electrons occurs preferentially.
- H 2 O on the left side of the reaction formula (3) represents H 20 which is a main component of the developer.
- FIG. 20 is a cross-sectional view of the substrate after the protrusion 110 ′ has been postbaked.
- the projection 110 ′ By projecting the projection 110 ′, the projection 11.0 ′ is melted, and the semi-cylindrical projection 110 ′ is formed from the substantially cylindrical projection 110 ′.
- the drain electrode 4 and the gate terminal 6 are covered with a coating film 100, but the drain electrode 4 is electrically connected to a reflective electrode 13 (see FIG. 1) described later.
- gate terminal 6 must be electrically connected to a gate driver (not shown). Therefore, if the drain electrode 4 and the gate terminal 6 remain covered with the coating film 100, the electrical connection between the drain electrode 4 and the reflective electrode 13 and the electrical connection between the good terminal 6 and the gate driver Can not be secured. Therefore, after forming a large number of projections 11, the coating film 100 is etched using these projections 11 as an etching mask to expose the drain electrode 4 and the gate terminal 6 (see FIG. 21). .
- the flattening film 12 has a hole 12 a for exposing a part of the drain electrode 4. Since many projections 11 exist under the planarization film 12, many irregularities are formed on the surface of the planarization film 12 reflecting the shape of the many projections 11. .
- the Mo Cr film 9 1 ′ Since it is easier to form the coating film 100 so as to cover both the A 1 Cu film 9 2 ′ and the A 1 Cu film 9 2 ′, in the first embodiment, the coating film 100 is 'And A 1 C It is formed so as to cover both the first film 9 2 ′.
- a two-layer film of the ITO film 205 and the MoCr film 206 is formed as the conductive film.
- the layers 205 and 206 are wet-etched.
- FIG. 28 is a cross-sectional view showing a substrate on which a large number of protrusions 210 are formed.
- FIG. 32 is a plan view of a part of the substrate on which the gate bus end 51 and the sacrificial electrode 60 are formed.
- FIG. 33 is a cross-sectional view taken along the line III-III of FIG.
- FIG. 4 is a cross-sectional view taken along the line IV-IV in FIG.
- the sacrificial electrode Reference numeral 60 denotes a sacrificial electrode main body 60 a and a sacrificial electrode connecting part 60 b connected to a gate bus main body 5 10 described later.
- the sacrificial electrode 60 is formed at a position closer to the display area than the gate terminal 6 is.
- the sacrificial electrode 60 itself does not contribute to the circuit operation of the TFT array substrate 300.
- the sacrificial electrode 60 has an effect of preventing the gate terminal 6 from being damaged during the manufacture of the TFT array substrate 300. How the sacrificial electrode 60 prevents damage to the gut terminal 6 during the manufacture of the TFT array substrate 300 will be described later in detail.
- the sacrificial electrode main body 60a and the gate terminal 6 were also removed. It is temporarily immersed in the developer. Since the gate electrode 9 and the gate bus main body 5110 are composed of the MoCu film 91 'and the 11th film 92', they contain A1 and Mo. On the other hand, the gate terminals 6 and the sacrificial electrode main portion 6 0 a is contained I n 2 ⁇ 3. The equilibrium electrode potentials of these metals A 1, Mo and In 2 ⁇ 3 are expressed by equation (4), so that A 1 has the smallest equilibrium electrode potential. On the other hand, I ⁇ 2 ⁇ 3 has the largest equilibrium electrode potential. Therefore, by exposing the exposed Gout electrode 9 and the Gout bath main body 5 10 etc. to the developing solution, the batteries represented by the reaction formulas (5) and (6) referred to in the description of FIG. 16 are obtained. It is likely that a reaction will occur. The reaction formulas (5) and (6) are shown below again.
- the resistance of the gate terminal 6 can be kept low without affecting the operation of the TFT array substrate 300. If the area of the sacrificial electrode body 60 a of the sacrificial electrode 60 is too small, the sacrificial electrode 60 cannot sufficiently exhibit the function of protecting the gate terminal 6 from the battery reaction.
- the area of the zero sacrificial electrode main body 60a is preferably large.
- a flattening film 12 is formed (see FIGS. 29 to 31).
- an underlayer composed of the protrusions 11 and the planarizing film 12 is formed.
- a reflective electrode 13 is formed.
- the TFT array substrate 300 is manufactured.
- the sacrificial electrode 60 by connecting the sacrificial electrode 60 that does not contribute to the circuit operation of the TFT array substrate 300 at all to the good bus main body 5 10, the sacrificial electrode 60 becomes a victim of the gate terminal 6 and reacts. Damage caused by equation (6). Therefore, the good terminal 6 can be effectively prevented from being damaged, and the good terminal 6 can be maintained at a low resistance.
- a gate insulating film 8 is formed so as to cover the surface of the substrate 1 on which the a-Si layer 7 is formed.
- This gate insulating film 8 has holes 8a, 8b, 8c, 8d and 8e.
- the hole 8 a is a hole for exposing the drain electrode 4.
- the hole 8b is a hole for exposing the sacrificial electrode connection portion 60b.
- Hole 8c is sacrificed A hole for exposing the MoCr unnecessary portion 26b covering the electrode main portion 60a.
- the hole 8d is a hole for exposing the connecting portion 51a of the gate bus end 51.
- Hole 8 e is a hole for exposing Mo Cr unnecessary portion 26 a covering gate terminal 6.
- the sacrificial electrode main body 60a is still a MoCr unnecessary part.
- This MoCr unnecessary portion 26 b is continuously etched following the etching of the conductive film 93. Therefore, the sacrificial electrode main body 60a can be exposed before the protrusion 11 of the underlayer is formed, so that the gate terminal 6 is hardly damaged.
- ITO is used as the material of the gate terminal 6
- IZO is used instead of ITO
- the protrusion 1 It is possible to prevent a phenomenon in which the material (1) is removed more than necessary, and also to prevent the gate terminal 6 from being damaged.
- the left side of FIG. 57 is the display area where the TFT and the reflective electrode and the like are formed, and the right side is the peripheral area where the ESD transistor and the source terminal 181, etc. are formed.
- This ESD transistor is for preventing electrostatic rupture of a TFT transistor provided for each pixel in the display area. Note that for convenience of explanation, these display area and peripheral area are shown schematically. Hereinafter, a method of manufacturing the TFT array substrate 400 will be described.
- a source electrode 151 and a drain electrode 152 of the TFT transistor are formed in the display area of the substrate 1.
- a source electrode 16 1 and a drain electrode 16 2 of the ESD transistor, a sacrificial electrode 17 1, and a source terminal 18 1 are formed in the peripheral region.
- a source bus 1911 is formed to extend in the X direction from the display area to the peripheral area.
- the source electrode 15 1 of the TFT transistor, the source electrode 16 1 of the ESD transistor, the sacrificial electrode 17 1, and the source terminal 18 1 are formed so as to be connected to the source bus 19 1.
- the conductive film 177 is composed of a MoCr film 1775 made of a material containing Mo as a main component and Cr added, and an AlCu made of a material containing A1 as a main component and added Cu. And a membrane 1 76. After the MoCr film 175 and the AlCu film 176 are formed in this manner, these films 175 and 176 are patterned to form a gut bath or the like (FIGS. 68 and FIG. See 6 9).
- the A 1 Cu film 176 and the Mo Cr film 175 are subjected to wet etching. As a result, the source terminal 18 1 and the sacrificial electrode main body 17 1 a are exposed.
- FIG. 70 is a partial plan view of the substrate immediately after the protrusion 11 is formed. Note that the protrusions 11 are indicated by white circles.
- the sacrificial electrode 17 1 itself is an electrode that is not involved in the operation of the TFT array substrate 400 at all. Therefore, even if the sacrificial electrode 17 1 is damaged, the operation of the TFT array substrate 400 is not affected. In addition, since the sacrificial electrode 17 1 is damaged as a result of sacrifice of the source terminal 18 1, the source terminal 18 1 is hardly damaged and the resistance value of the source terminal 18 1 is kept low.
- a flattening film 12 (see FIGS. 57, 58 and 59) is formed. In this way, an underlayer composed of the protrusions 11 and the flattening film 12 is formed. After forming the underlayer, a reflective electrode 13 (see FIGS. 57, 58 and 59) is formed. Thus, the TFT array substrate 400 is manufactured.
- the sacrificial electrode 171 which does not contribute to the circuit operation of the TFT array substrate 400 at all, is electrically connected to the ESD gate electrode 164 through the source bus 191, so that the sacrificial electrode 171, 1 is sacrificed by the source terminal 18 1 and is damaged by the reaction equation (6). Therefore, it is possible to efficiently prevent the source terminal 181 from being damaged, and to maintain the source terminal 181 at a low resistance.
- FIG. 74 is a partial plan view of the substrate on which the a-Si layers 15 3 and 16 3 and the gate insulating film 16 0 are formed.
- FIG. 75 is a III-III direction of FIG.
- FIG. 76 is a cross-sectional view taken along the line IV-IV in FIG.
- an a-Si layer 15 3 is formed between the source electrode 15 1 and the drain electrode 15 2 of the TFT transistor, and in the peripheral area, the source electrode 16 1 of the E SD transistor is formed.
- An a-Si layer 163 is formed between the drain electrode 162 and the drain electrode 162.
- the gate insulating film 160 is formed on the substrate 1 on which the a-Si layers 153 and 163 are formed.
- the gate insulating film 160 is patterned so as to have holes l'600a, 160b, 160c, 160d, and 160e.
- the hole 160a is a hole for exposing the drain electrode 152.
- the hole 160b is a hole for exposing the drain electrode 162 of the ESD transistor.
- the hole 160c is a hole for exposing the source bus 1991.
- the hole 160d is a hole for exposing the unnecessary MoCr portion 26b covering the sacrificial electrode main body 171a.
- the hole 160 e is a hole for exposing the MoCr unnecessary portion 26 a covering the source terminal 18 1.
- the conductive film 177 is wet-etched and covered with the resist film Res.
- the portion of the conductive film 177 remains without being removed, but is not covered with the resist film Res.
- the portions of the conductive films 17 and 7 are removed.
- a TFT gate electrode 154, a gate bus 155, an ESD wiring 165, and an ESD gate electrode 164 are formed under the resist film Res. 6a and 26b are exposed.
- the source terminal 18 1 is covered with the MoCr unnecessary portion 26a, and the sacrificial electrode main body 17 1a is covered with the MoCr unnecessary portion 26b. I want to. Since the MoCr unnecessary portion 26a is unnecessary for the source terminal 181, the MoCr unnecessary portion 26a needs to be removed.
- the sacrificial electrode main body 171a immediately after etching the conductive film 177 (that is, immediately after the formation of the ESD gate electrode 164, etc.), the sacrificial electrode main body 171a still has no MoCr unnecessary portion 26b. (See Fig. 81.) This unnecessary portion of MoCr 26 b
- the conductive film 177 is etched continuously after the etching. Therefore, the sacrificial electrode main body 1771a can be exposed before the formation of the protrusion 11 of the underlayer, and damage to the source terminal 1811 can be suppressed.
- a source electrode 2, a source bus 3, and a drain electrode 4 are formed in the display area.
- the source bus 3 is formed so as to extend in the y direction, and the source electrode 2 is formed so as to be connected to the source bus 3.
- a gate bus end 51 and a gate terminal 6 are formed in the peripheral area.
- the gate terminal 6 is formed so as to extend to the gate bus end 51.
- the gate bus end 51 is connected to a gate bus bridge 53 described later (see FIGS. 98 and 99).
- First connection 5 1a connected to A second connection portion 51c connected to a sacrificial electrode 14 (see FIGS. 988 and 100) described later, and extending from these connection portions 51a and 51c to the gate terminal 6. Extending portion 51b.
- an underlayer having the protrusions 11 and the planarizing film 12 is formed.
- the gate insulating film 8 is doped using the underlayer as an etching mask. Light etching (see Fig. 94 and Fig. 95).
- the gate insulating film 8 is dry-etched using the base layer as an etching mask, so that the gate insulating film 8 corresponds to the holes 12a, 12c, 12d, and 12e of the planarization film 12. Holes 8a, 8c, 8d and 8e are formed.
- the hole 8 a is a hole for exposing the drain electrode 4.
- the hole 8c is a hole for exposing the connecting portion 51a of the gate bus end 51.
- the hole 8d is a hole for exposing the connecting portion 51c of the gate bus end 51.
- the hole 8 e is a hole for exposing the MoCr unnecessary portion 26 a covering the gate terminal 6.
- the portion of the gate insulating film 8 corresponding to the hole 12 b of the flattening film 12 is not etched because it is protected by the connecting portion 52 a of the gate bus main body 52.
- the resist film Res A reflective electrode 13, a gate bus bridge 53 and a sacrificial electrode 14 are formed below.
- the gate bus bridge 53 By forming the gate bus bridge 53, the good bus end 51 and the gate bus main body 52 are electrically connected.
- the gate bus 5 is composed of the gate bus end 51, the gate bus body 52, and the gate bus bridge 53.
- the sacrificial electrode 14 is electrically connected to the gate terminal 6 through the connection portion 51 c of the gate bus end 51. Unnecessary portions of the Ag film 130 are removed by wet-etching the Ag film 130, so that the MoCr unnecessary portion 26a covering the gate terminal 6 is removed. Exposed.
- the wet etching of the Ag film 130 exposes the unnecessary MoCr portion 26a covered with the Ag film 130.
- the side end surface 13a of the reflective electrode 13, the side end surface 53a of the gate bus bridge 53, and the side end surface 1 of the sacrificial electrode 14 are provided. 4 a and MoCr unnecessary portion 26 a come into contact with the etching solution.
- the relationship between the equilibrium electrode potential of Ag, which is the material of the reflective electrode 13, the gate bus bridge 53, and the sacrificial electrode 14, and Mo, which is the material of the MoCr unnecessary part 26 a, is expressed by equation (9) Is represented by
- an electronic device manufacturing method for preventing or mitigating a phenomenon that a metal film is removed more than necessary, and an electronic device to which this method is applied are obtained.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Computer Hardware Design (AREA)
- Nonlinear Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Optics & Photonics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mathematical Physics (AREA)
- Ceramic Engineering (AREA)
- Liquid Crystal (AREA)
- Thin Film Transistor (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
- Photosensitive Polymer And Photoresist Processing (AREA)
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03768191A EP1580593A4 (en) | 2002-12-27 | 2003-12-24 | METHOD FOR MANUFACTURING AN ELECTRONIC DEVICE, AND ELECTRONIC DEVICE SO MANUFACTURED |
KR1020057012004A KR101052401B1 (ko) | 2002-12-27 | 2003-12-24 | 전자 장치, 전자 장치 제조 방법 및 전자 장치를 포함하는 화상 표시 장치 |
AU2003292771A AU2003292771A1 (en) | 2002-12-27 | 2003-12-24 | Method for manufacturing electronic device and electronic device |
US10/540,384 US8134162B2 (en) | 2002-12-27 | 2003-12-24 | Method for manufacturing electronic device and electronic device |
JP2004564513A JP4594739B2 (ja) | 2002-12-27 | 2003-12-24 | 電子装置製造方法及び電子装置 |
US13/417,981 US8535963B2 (en) | 2002-12-27 | 2012-03-12 | Method for manufacturing electronic device and electronic device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002-381362 | 2002-12-27 | ||
JP2002381362 | 2002-12-27 |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/540,384 A-371-Of-International US8134162B2 (en) | 2002-12-27 | 2003-12-24 | Method for manufacturing electronic device and electronic device |
US13/417,981 Division US8535963B2 (en) | 2002-12-27 | 2012-03-12 | Method for manufacturing electronic device and electronic device |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004061521A1 true WO2004061521A1 (ja) | 2004-07-22 |
Family
ID=32708486
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2003/016652 WO2004061521A1 (ja) | 2002-12-27 | 2003-12-24 | 電子装置製造方法及び電子装置 |
Country Status (8)
Country | Link |
---|---|
US (2) | US8134162B2 (ja) |
EP (1) | EP1580593A4 (ja) |
JP (1) | JP4594739B2 (ja) |
KR (1) | KR101052401B1 (ja) |
CN (1) | CN100465702C (ja) |
AU (1) | AU2003292771A1 (ja) |
TW (1) | TWI347478B (ja) |
WO (1) | WO2004061521A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004317662A (ja) * | 2003-04-14 | 2004-11-11 | International Display Technology Kk | 配線端子 |
JP2006154000A (ja) * | 2004-11-25 | 2006-06-15 | Sharp Corp | 配線基板および反射型液晶表示装置 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009194033A (ja) * | 2008-02-12 | 2009-08-27 | Mitsubishi Electric Corp | 半導体装置及び半導体装置の製造方法 |
JP5467449B2 (ja) * | 2008-09-17 | 2014-04-09 | Nltテクノロジー株式会社 | 引出線配線装置、画像表示装置及び引出線配線装置の製造方法 |
TWI478623B (zh) * | 2012-02-13 | 2015-03-21 | E Ink Holdings Inc | 顯示器 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04199681A (ja) * | 1990-11-29 | 1992-07-20 | Fujitsu Ltd | 半導体装置 |
JP2000180882A (ja) * | 1998-12-15 | 2000-06-30 | Sharp Corp | 液晶表示装置及びその製造方法 |
JP2001194677A (ja) * | 1999-10-26 | 2001-07-19 | Sharp Corp | 配線板および液晶表示装置 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3029531B2 (ja) * | 1994-03-02 | 2000-04-04 | シャープ株式会社 | 液晶表示装置 |
US5610741A (en) * | 1994-06-24 | 1997-03-11 | Sharp Kabushiki Kaisha | Reflection type liquid crystal display device with bumps on the reflector |
JP3213242B2 (ja) * | 1996-10-23 | 2001-10-02 | シャープ株式会社 | 反射板、反射型液晶表示装置およびその製造方法 |
JP3270821B2 (ja) * | 1997-03-12 | 2002-04-02 | シャープ株式会社 | 反射型液晶表示装置およびその製造方法 |
US6259119B1 (en) * | 1997-12-18 | 2001-07-10 | Lg. Philips Lcd Co, Ltd. | Liquid crystal display and method of manufacturing the same |
JPH11259018A (ja) * | 1998-03-10 | 1999-09-24 | Sony Corp | 拡散反射板の製造方法及び反射型表示装置 |
US6297519B1 (en) * | 1998-08-28 | 2001-10-02 | Fujitsu Limited | TFT substrate with low contact resistance and damage resistant terminals |
JP3866522B2 (ja) * | 2001-02-14 | 2007-01-10 | 日本電気株式会社 | アクティブマトリクス型液晶表示装置及びその製造方法 |
US6794682B2 (en) * | 2001-04-04 | 2004-09-21 | Canon Kabushiki Kaisha | Semiconductor device, method for manufacturing the same, and radiation detector |
CN1165087C (zh) | 2001-04-18 | 2004-09-01 | 悠景科技股份有限公司 | 保护有机电激发光显示器的方法及其结构 |
JP2003057640A (ja) * | 2001-06-05 | 2003-02-26 | Seiko Epson Corp | 電気光学装置、電子機器、および電気光学装置の製造方法 |
TW526615B (en) * | 2001-08-24 | 2003-04-01 | Prime View Int Co Ltd | Structure and manufacturing method for thin film transistor liquid crystal display |
-
2003
- 2003-12-24 KR KR1020057012004A patent/KR101052401B1/ko active IP Right Grant
- 2003-12-24 US US10/540,384 patent/US8134162B2/en active Active
- 2003-12-24 CN CNB2003801075113A patent/CN100465702C/zh not_active Expired - Lifetime
- 2003-12-24 AU AU2003292771A patent/AU2003292771A1/en not_active Abandoned
- 2003-12-24 EP EP03768191A patent/EP1580593A4/en not_active Withdrawn
- 2003-12-24 WO PCT/JP2003/016652 patent/WO2004061521A1/ja active Application Filing
- 2003-12-24 JP JP2004564513A patent/JP4594739B2/ja not_active Expired - Lifetime
- 2003-12-26 TW TW092137147A patent/TWI347478B/zh not_active IP Right Cessation
-
2012
- 2012-03-12 US US13/417,981 patent/US8535963B2/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04199681A (ja) * | 1990-11-29 | 1992-07-20 | Fujitsu Ltd | 半導体装置 |
JP2000180882A (ja) * | 1998-12-15 | 2000-06-30 | Sharp Corp | 液晶表示装置及びその製造方法 |
JP2001194677A (ja) * | 1999-10-26 | 2001-07-19 | Sharp Corp | 配線板および液晶表示装置 |
Non-Patent Citations (1)
Title |
---|
See also references of EP1580593A4 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004317662A (ja) * | 2003-04-14 | 2004-11-11 | International Display Technology Kk | 配線端子 |
JP4522663B2 (ja) * | 2003-04-14 | 2010-08-11 | 日本Cmo株式会社 | 配線端子 |
JP2006154000A (ja) * | 2004-11-25 | 2006-06-15 | Sharp Corp | 配線基板および反射型液晶表示装置 |
JP4593246B2 (ja) * | 2004-11-25 | 2010-12-08 | シャープ株式会社 | 配線基板および反射型液晶表示装置 |
Also Published As
Publication number | Publication date |
---|---|
JPWO2004061521A1 (ja) | 2006-05-18 |
TW200500760A (en) | 2005-01-01 |
KR20050084494A (ko) | 2005-08-26 |
CN100465702C (zh) | 2009-03-04 |
US8134162B2 (en) | 2012-03-13 |
EP1580593A4 (en) | 2011-03-16 |
US20070015354A1 (en) | 2007-01-18 |
KR101052401B1 (ko) | 2011-07-28 |
US20120171621A1 (en) | 2012-07-05 |
EP1580593A1 (en) | 2005-09-28 |
CN1732405A (zh) | 2006-02-08 |
TWI347478B (en) | 2011-08-21 |
US8535963B2 (en) | 2013-09-17 |
JP4594739B2 (ja) | 2010-12-08 |
AU2003292771A1 (en) | 2004-07-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US6888585B2 (en) | Control signal unit for a liquid crystal display | |
US7352004B2 (en) | Thin film transistor array panel and method for manufacturing the same | |
CN111477638B (zh) | 阵列基板及其制造方法、显示装置 | |
JP4423194B2 (ja) | 配線用エッチング液とこれを用いる配線の製造方法とその配線を含む薄膜トランジスタアレイ基板及びその製造方法 | |
JP2004096115A (ja) | 半導体素子の接触部及びその製造方法並びに表示装置用薄膜トランジスタ表示板及びその製造方法 | |
JP2002026333A (ja) | アクティブマトリクス基板の製造方法 | |
JP2007293350A (ja) | 液晶表示装置用薄膜トランジスター | |
US8535963B2 (en) | Method for manufacturing electronic device and electronic device | |
JP4191641B2 (ja) | 半透過型液晶表示装置およびその製造方法 | |
KR20120065521A (ko) | 표시 기판 및 이의 제조 방법 | |
JP5311758B2 (ja) | 金属配線の製造方法及びこれを利用した表示基板の製造方法 | |
KR101087398B1 (ko) | 액정표시장치의 패드 구조 및 그 제조방법 | |
US8153463B2 (en) | Method of manufacturing thin film transistor substrate | |
JP3050199B2 (ja) | 配線端子およびその形成方法 | |
KR20090080786A (ko) | 어레이 기판의 제조 방법 및 어레이 기판 | |
KR20090044302A (ko) | 박막 트랜지스터, 박막 트랜지스터의 제조 방법 및 이를갖는 표시 장치 | |
KR20020043402A (ko) | 액정 표시 장치용 박막 트랜지스터 기판 및 그 제조 방법 | |
JP2004294804A (ja) | 表示装置の製造方法、液晶表示装置並びに金属膜のパターニング方法。 | |
JP4742295B2 (ja) | 薄膜トランジスタパネルの製造方法 | |
JP7558035B2 (ja) | サーマルプリントヘッド及びその製造方法 | |
KR20080005767A (ko) | 박막트랜지스터 기판 및 그 제조방법 | |
KR20050113894A (ko) | 트랜지스터의 제조 방법 및 그를 갖는 어레이 기판의 제조방법 | |
KR20070091732A (ko) | 표시 기판의 제조 방법 | |
KR20080040319A (ko) | 표시 기판 및 이의 제조 방법 | |
KR20040039985A (ko) | 박막 트랜지스터 기판 및 이의 제조 방법 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): BW GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2004564513 Country of ref document: JP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2003768191 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1020057012004 Country of ref document: KR Ref document number: 20038A75113 Country of ref document: CN |
|
WWP | Wipo information: published in national office |
Ref document number: 1020057012004 Country of ref document: KR |
|
WWP | Wipo information: published in national office |
Ref document number: 2003768191 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2007015354 Country of ref document: US Ref document number: 10540384 Country of ref document: US |
|
WWP | Wipo information: published in national office |
Ref document number: 10540384 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 10540384 Country of ref document: US |