WO2015043008A1 - 薄膜晶体管阵列基板的制造方法 - Google Patents
薄膜晶体管阵列基板的制造方法 Download PDFInfo
- Publication number
- WO2015043008A1 WO2015043008A1 PCT/CN2013/085364 CN2013085364W WO2015043008A1 WO 2015043008 A1 WO2015043008 A1 WO 2015043008A1 CN 2013085364 W CN2013085364 W CN 2013085364W WO 2015043008 A1 WO2015043008 A1 WO 2015043008A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- photoresist pattern
- thin film
- film transistor
- layer
- array substrate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D99/00—Subject matter not provided for in other groups of this subclass
-
- 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
-
- 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
- H10D30/673—Thin-film transistors [TFT] characterised by the electrodes characterised by the shapes, relative sizes or dispositions of the gate electrodes
-
- 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]
- H10D30/674—Thin-film transistors [TFT] characterised by the active materials
- H10D30/6755—Oxide semiconductors, e.g. zinc oxide, copper aluminium oxide or cadmium stannate
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D62/00—Semiconductor bodies, or regions thereof, of devices having potential barriers
- H10D62/80—Semiconductor bodies, or regions thereof, of devices having potential barriers characterised by the materials
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D62/00—Semiconductor bodies, or regions thereof, of devices having potential barriers
- H10D62/80—Semiconductor bodies, or regions thereof, of devices having potential barriers characterised by the materials
- H10D62/875—Semiconductor bodies, or regions thereof, of devices having potential barriers characterised by the materials being semiconductor metal oxide, e.g. InGaZnO
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D64/00—Electrodes of devices having potential barriers
- H10D64/01—Manufacture or treatment
- H10D64/011—Manufacture or treatment of electrodes ohmically coupled to a semiconductor
-
- 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
- H10D86/0212—Manufacture or treatment of multiple TFTs comprising manufacture, treatment or coating of substrates
-
- 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
- H10D86/0221—Manufacture or treatment of multiple TFTs comprising manufacture, treatment or patterning of TFT semiconductor bodies
-
- 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
- H10D86/0231—Manufacture or treatment of multiple TFTs using masks, e.g. half-tone masks
-
- 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
- H10D86/421—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 having a particular composition, shape or crystalline structure of the active layer
- H10D86/423—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 having a particular composition, shape or crystalline structure of the active layer comprising semiconductor materials not belonging to the Group IV, e.g. InGaZnO
-
- 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
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P14/00—Formation of materials, e.g. in the shape of layers or pillars
- H10P14/20—Formation of materials, e.g. in the shape of layers or pillars of semiconductor materials
- H10P14/34—Deposited materials, e.g. layers
- H10P14/3402—Deposited materials, e.g. layers characterised by the chemical composition
- H10P14/3434—Deposited materials, e.g. layers characterised by the chemical composition being oxide semiconductor materials
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P14/00—Formation of materials, e.g. in the shape of layers or pillars
- H10P14/60—Formation of materials, e.g. in the shape of layers or pillars of insulating materials
- H10P14/63—Formation of materials, e.g. in the shape of layers or pillars of insulating materials characterised by the formation processes
- H10P14/6326—Deposition processes
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P14/00—Formation of materials, e.g. in the shape of layers or pillars
- H10P14/60—Formation of materials, e.g. in the shape of layers or pillars of insulating materials
- H10P14/69—Inorganic materials
- H10P14/692—Inorganic materials composed of oxides, glassy oxides or oxide-based glasses
- H10P14/6921—Inorganic materials composed of oxides, glassy oxides or oxide-based glasses containing silicon
- H10P14/69215—Inorganic materials composed of oxides, glassy oxides or oxide-based glasses containing silicon the material being a silicon oxide, e.g. SiO2
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P50/00—Etching of wafers, substrates or parts of devices
- H10P50/20—Dry etching; Plasma etching; Reactive-ion etching
- H10P50/28—Dry etching; Plasma etching; Reactive-ion etching of insulating materials
- H10P50/282—Dry etching; Plasma etching; Reactive-ion etching of insulating materials of inorganic materials
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P95/00—Generic processes or apparatus for manufacture or treatments not covered by the other groups of this subclass
- H10P95/90—Thermal treatments, e.g. annealing or sintering
Definitions
- the field of liquid crystal display manufacturing in particular, relates to a method for manufacturing a thin film tube array substrate using a three-time mask ( background;
- the liquid crystal display has many advantages such as power saving and no radiation, and has been widely used.
- Most of the liquid crystal displays on the market are backlight type liquid crystal displays, which include a liquid crystal panel and a backlight module.
- the working principle of the liquid crystal panel is to place liquid crystal molecules in two parallel glass substrates, and apply driving voltages on the two glass substrates to control the rotation direction of the liquid crystal molecules to refract the light of the backlight module to generate a picture. Since the liquid crystal surface light source normally displays images, therefore, the back
- the two parallel glass substrates in the liquid crystal panel are a thin film transistor array substrate and a color filter substrate, respectively.
- the thin film transistor array substrate includes: a substrate; a gate line, a gate, a gate insulating layer, a semiconductor active layer, a data line, a source, a drain, and a source formed on the substrate, and a source formed on the substrate a protective layer on the drain, the drain, and a pixel electrode formed on the protective layer, wherein the gate, the source, the drain, and the semiconductor active layer constitute a thin film transistor (TFT).
- TFT thin film transistor
- the thin film transistor is an amorphous silicon thin film transistor or a low temperature polysilicon thin film transistor.
- the amorphous silicon thin film transistor display matrix only needs 3-5 photolithographic masks, and the cost is low and the competition is strong.
- the low temperature polysilicon thin film transistor display matrix usually requires 8-9 photolithographic masks, which is relatively high in cost.
- Oxide semiconductor IGZO Indium Gallium Zinc Oxide
- IGZO has a carrier mobility of 20 to 30 times that of amorphous silicon, which can greatly increase the charge and discharge rate of the thin film transistor to the pixel electrode and improve the response speed of the pixel. , achieving faster refresh rate, and faster response also greatly increases the pixel scan rate, making ultra-high resolution in Thin Film Transistor TFT-LCD
- IGZO liquid crystal displays have higher energy efficiency levels and higher efficiency due to the reduction in the number of thin film transistors and the improvement of the transmittance of each pixel.
- ZnO semiconductor IGZO can be produced using existing amorphous silicon production lines. It needs a little modification, so it is more competitive in terms of cost than low-temperature polysilicon.
- thin film transistors fabricated by the oxide semiconductor IGZO are mainly manufactured by a 6-time mask process, which has a lower production efficiency and a higher production cost.
- An object of the present invention is to provide a method for fabricating a thin film transistor array substrate by manufacturing a thin film transistor array substrate through three masks, which can significantly reduce the number of processing steps, shorten the processing time, and effectively reduce the production cost.
- the production capacity is increased, and the thin film transistor array substrate is made of indium gallium zinc oxide, which can greatly increase the charging rate of the thin film transistor to the pixel electrode, improve the response speed of the pixel, and achieve a faster refresh rate.
- the present invention provides a method of fabricating a thin film transistor array substrate using a top gate structure, and the method of fabricating the thin film transistor array substrate includes the following steps:
- Step 1 providing a substrate
- Step 2 sequentially depositing a buffer layer, an oxide semiconductor film and a first metal layer on the substrate;
- Step 3 forming a first photoresist layer on the first metal layer, patterning the first photoresist layer to form a first photoresist pattern at a predetermined position, including a channel region corresponding to the oxide semiconductor film a first portion, and a second portion, the thickness of the first photoresist pattern in the second portion is thicker than the thickness of the first portion;
- Step 4 etching away the first metal layer and the oxide semiconductor film without the region covered by the first photoresist pattern, removing the first portion of the first photoresist pattern to expose the first metal layer, and the second photoresist pattern Part of the mask is etched away from the first metal layer to expose the oxide semiconductor film, and the first photoresist pattern is stripped to form a source and a drain in the first metal layer;
- Step 5 sequentially deposit an insulating layer and a second metal layer on the substrate, and pattern the second metal layer to form a gate.
- the manufacturing method of the thin film transistor array substrate further includes:
- step 6 after step 5, a protective layer is deposited on the substrate, a second photoresist layer is formed on the protective layer, and the second photoresist layer is patterned to form a second photoresist pattern at a predetermined position, a third portion over the drain side and a portion of the drain, and a fourth portion over the other side of the drain and a portion of the drain, forming a third portion and a fourth portion of the second photoresist pattern - a recess;
- step 7 etching the protective layer not covered by the second photoresist pattern and the insulating layer corresponding to the portion of the protective layer to expose the drain, thereby forming a contact hole, and removing the third portion of the second photoresist pattern;
- step 8 after step 7, a transparent conductive layer is deposited on the substrate, and the fourth portion of the second photoresist pattern and the transparent conductive layer thereon are peeled off by photoresist stripping.
- the method for fabricating the thin film transistor array substrate further includes the step of annealing the substrate in step 9 after the step 8, to complete the fabrication of the thin film transistor array substrate.
- the substrate is a glass substrate; the buffer layer is formed by deposition of silicon dioxide; and the oxide semiconductor film is an indium gallium zinc oxide film.
- the first photoresist pattern in the step 3 is formed by gray scale, mask, exposure, and development.
- the first metal layer is etched away by using the second portion of the first photoresist pattern as a mask; and the stripping the first photoresist pattern in the step 4 is the first photoresist pattern. The second part is stripped off
- the insulating layer in the step 5 is formed by deposition of silicon dioxide; and the second metal layer in the step 5 forms a bridge by exposure, development, etching and photoresist stripping processes.
- the etching is a wet etching.
- the protective layer in the step 6 is formed by deposition of silicon dioxide or a silicon nitride compound; and the second photoresist pattern passes through a gray scale. Formed by masking, exposure, and development.
- the protective layer not covered by the second photoresist pattern and the insulating layer corresponding to the partial protective layer are etched away by a thousand etching method to form a contact hole.
- the present invention also provides a method of fabricating a thin film transistor array substrate using a top gate structure, and the method of fabricating the thin film transistor array substrate includes the following steps:
- Step 1 providing a substrate
- Step 2 Forming a buffer layer, an oxide semiconductor film, and a first metal layer sequentially on the substrate;
- Step 3 forming a first photoresist layer on the first metal layer, patterning the first photoresist layer to form a first photoresist pattern at a predetermined position, including a channel region corresponding to the oxide semiconductor film a first portion, and a second portion, the thickness of the first photoresist pattern in the second portion is thicker than the thickness of the first portion;
- Step 4 etching away the first metal layer and the oxide semiconductor film without the region covered by the first photoresist pattern, removing the first portion of the first photoresist pattern to expose the first metal layer, and the second photoresist pattern Part of the mask is used to etch away the first metal layer to expose the oxide semiconductor film, and stripping Deviating from the first photoresist pattern to form a source and a drain in the first metal layer;
- Step 5 sequentially depositing an insulating layer and a second metal layer on the substrate, and patterning the second metal layer to form a 4-layer electrode;
- step 6 after step 5, a protective layer is deposited on the substrate, a second photoresist layer is formed on the protective layer, and the second photoresist layer is patterned to form a second photoresist pattern at a predetermined position,
- the third portion is disposed on the drain side and the portion of the drain, and the fourth portion is located on the other side of the drain and the portion of the drain.
- the third portion and the fourth portion of the second photoresist pattern form a Concave
- step 7 etching the protective layer not covered by the second photoresist pattern and the insulating layer corresponding to the portion of the protective layer to expose the drain, thereby forming a contact hole, and removing the third portion of the second photoresist pattern;
- Step 8 after step 7, depositing a transparent conductive layer on the substrate, and peeling off the fourth portion of the second photoresist pattern and the transparent conductive layer thereon by photoresist stripping;
- step 9 after the step 8 is performed to anneal the substrate to complete the fabrication of the thin film transistor array substrate
- the substrate is a glass substrate;
- the buffer layer is formed by depositing silicon dioxide; and the oxide semiconductor film is an indium gallium zinc oxide film;
- the first photoresist pattern in the step 3 is shaped by gray scale, mask, exposure, and development;
- the first metal layer is etched away by using the second portion of the first photoresist pattern as a mask; and the first photoresist is removed from the first photoresist pattern in the step 4 The second part of the pattern is peeled off.
- the insulating layer in the step 5 is formed by deposition of silicon dioxide; the second metal layer in the step 5 is exposed. Development, etching, and photoresist stripping processes are formed.
- the etch is a wet etch.
- the protective layer in the step 6 is formed by depositing silicon dioxide or a silicon nitride compound; and the second photoresist pattern is formed by gray scale, masking, exposure, and development.
- the protective layer not covered by the second photoresist pattern and the insulating layer corresponding to the portion of the protective layer are etched away by a thousand etching method to form a contact hole.
- the thin film transistor array substrate employs a top gate structure, and the method of manufacturing the thin film transistor array substrate is
- the TFT array substrate is fabricated by three masks, wherein the thin film transistor in the thin film transistor array substrate is fabricated by using indium gallium zinc oxide, which can greatly increase the charging speed of the thin film transistor to the pixel electrode. Rate, improve the response speed of the pixel, achieve faster refresh rate, and faster response also greatly improve the line scan rate of the pixel, making ultra-high resolution possible in the thin film transistor liquid crystal display; meanwhile, the manufacturing method is only Using 3 mask processes, it can significantly reduce process steps, shorten process time, effectively reduce production costs, increase production efficiency, and increase production capacity.
- FIG. 1 is a flow chart showing a method of fabricating a thin film transistor array substrate of the present invention
- FIG. 2 is a schematic structural view showing a buffer layer, an indium gallium zinc oxide film, and a first metal layer formed on a substrate in the present invention
- FIG. 3 is a schematic structural view of a first photoresist layer formed on a substrate in the present invention.
- FIG. 4 is a schematic structural view of etching an indium gallium zinc oxide film and a first metal layer without a first photoresist layer after exposure of the substrate in the present invention
- FIG. 5 is a schematic view showing the structure of a first photoresist layer in which a substrate is ashed in a first gray-scale exposure region according to the present invention
- FIG. 6 is a schematic view showing the structure of a first metal layer in which a substrate is completely etched away from a first gray-scale exposure region;
- FIG. 7 is a schematic structural view of a substrate in which a first photoresist layer is peeled off according to the present invention.
- FIG. 8 is a schematic diagram showing the structure of a node layer and a second metal layer deposited on a substrate in the present invention. i3 ⁇ 4J
- FIG. 9 is a schematic structural view of forming a gate on a substrate in the present invention.
- FIG. 10 is a schematic structural view of a protective layer formed on a substrate in the present invention.
- FIG. 1 is a schematic structural view of a second light blocking layer formed on a substrate according to the present invention
- FIG. 12 is a schematic structural view of a substrate forming a contact hole in the present invention.
- FIG. 13 is a schematic view showing the structure of a second photoresist layer in which a substrate is ashed in a second gray-scale exposure region according to the present invention
- FIG. 14 is a schematic structural view of a transparent conductive layer formed on a substrate in the present invention.
- FIG. 5 is a schematic structural view of the second photoresist layer of the second normal exposure region and the transparent conductive layer on the second photoresist layer in the present invention. detailed description
- the present invention provides a method for fabricating a thin film transistor array substrate.
- the thin film transistor array substrate adopts a top gate structure, and the method only uses three mask processes to effectively reduce production cost and improve production. Efficiency, increase production capacity.
- the manufacturing method of the thin film transistor array substrate specifically includes the following steps:
- Step 1 Provide a substrate 21.
- the substrate 21 is preferably a glass substrate.
- the substrate is not limited thereto, and a substrate of another material such as plastic or the like may be used.
- Step 2 A buffer layer 22, an oxide semiconductor film 23, and a first metal layer 24 are sequentially deposited on the substrate 21.
- the buffer layer 22 is formed by depositing silicon oxide, and the oxide semiconductor film 23 is an indium gallium zinc oxide film.
- Step 3 forming a first photoresist layer on the first metal layer 24, and patterning the first photoresist layer to form a first photoresist pattern 25 at a predetermined position, which includes a trench corresponding to the oxide semiconductor film 23.
- the first portion 26 of the track region and the second portion 27 have a thickness of the first photoresist pattern 25 at the second portion 27 that is thicker than the thickness of the first portion 26.
- the first photoresist pattern 25 in the step 3 is formed by gray scale, mask, exposure, development, and the first portion 26 of the first photoresist pattern 25 is formed by gray scale exposure.
- the first masking process of the three mask processes in the present invention is carried out.
- Step 4 etching away the first metal layer 24 and the oxide semiconductor film 23 in the region not covered by the first photoresist pattern 25, removing the first portion 26 of the first photoresist pattern 25 to expose the first metal layer 24, first The second portion 27 of the photoresist pattern 25 etches away the first metal layer 24 to expose the oxide semiconductor film 23, and peels off the first photoresist pattern 25 to form the source 27 and the drain 28 in the first metal layer 24.
- the first metal layer 24 is etched away by using the second portion 27 of the first photoresist pattern 25 as a mask by a thousand etching method, as shown in FIG. 6, and the first photoresist pattern 25 is peeled off.
- the second portion 27 of the first photoresist pattern 25 is peeled off.
- Step 5 Deposit an insulating layer 3! and a second metal layer 32 on the substrate, and pattern the second metal layer 32 to form the cabinet 33.
- the insulating layer 31 is preferably formed by deposition of silicon dioxide.
- the second metal layer 32 is exposed, developed, etched and The photoresist stripping process forms the drain 33 0.
- the exposure of the second metal layer 32 in this step is a common exposure, which is simple in operation, convenient and quick, and is advantageous for improving productivity; the etching of the second metal layer 32 is wet in this step. Etching.
- the second mask process of the three mask processes in the present invention is carried out.
- Step 6 depositing a protective layer 34 on the substrate, forming a second photoresist layer on the protective layer 34, and patterning the second photoresist layer to form a second photoresist pattern 35 at a predetermined position, which includes a drain portion 28 - a third portion 36 above the side and portion of the drain 28, and a fourth portion 37 above the other side of the drain 28 and a portion of the drain 28, and a third portion 36 of the second photoresist pattern 35 A recess is formed between the four portions 37, as shown in FIGS. 10 and 11.
- the protective layer 34 is formed by deposition of silicon dioxide or a silicon nitride compound (SiN x ).
- the second photoresist pattern 35 is formed by gray scale, mask, exposure, development, and the third portion 36 of the second photoresist pattern 35 is formed by gray scale exposure.
- the second photoresist pattern 35 forms a recess with respect to the drain electrode 28, and the recess is used for etching to form the contact hole 41.
- the third masking process of the three mask processes in the present invention is carried out.
- Step 7 etching away the protective layer 34 not covered by the second photoresist pattern 35 and the insulating layer 3 corresponding to the portion of the protective layer 34 to expose the drain electrode 28, thereby forming the contact hole 41, and removing the second photoresist pattern 35 Three parts 36, as shown in Figures 12 and 13.
- the protective layer 34 not covered by the second photoresist pattern 35 and the insulating layer 31 corresponding to the portion of the protective layer 34 are etched away by a thousand etching method, thereby forming a contact hole 41, and the contact hole 41 is located in the second light.
- the third portion 36 and the fourth portion 37 of the resist pattern 35 are used to connect the drain of the thin film transistor.
- Step 8 Depositing a transparent conductive layer 42 on the substrate, and peeling off the fourth portion 37 of the second photoresist pattern 35 and the transparent conductive layer 42 thereon by photoresist stripping, as shown in FIG. 14 and FIG. Show.
- the transparent conductive layer 42 is configured to be coupled to a drain of the thin film transistor for use as an electrode of a storage capacitor in the array substrate.
- Step 9 Annealing the substrate to complete the fabrication of the thin film transistor array substrate.
- the thin film transistor array substrate adopts a top gate structure
- the method of manufacturing the thin film transistor array substrate is to fabricate a TFT array substrate by using three masks, wherein indium gallium is used.
- Zinc oxide to fabricate a thin film transistor array substrate The thin film transistor can greatly increase the charging rate of the thin film transistor to the pixel electrode, improve the response speed of the pixel, achieve a faster refresh rate, and at the same time, the faster response also greatly increases the pixel scanning rate, so that the ultra-high resolution is It is possible to use a thin film transistor liquid crystal display.
- the manufacturing method uses only three masking processes, which can significantly reduce the processing steps, shorten the processing time, effectively reduce the production cost, increase the production efficiency, and increase the production capacity.
Landscapes
- Thin Film Transistor (AREA)
- Liquid Crystal (AREA)
Abstract
Description
Claims
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1600109.1A GB2530223B (en) | 2013-09-30 | 2013-10-17 | Method for manufacturing thin-film transistor array substrate |
| JP2016543288A JP6261747B2 (ja) | 2013-09-30 | 2013-10-17 | 薄膜トランジスタ配列基板の製造方法 |
| KR1020167006845A KR101788488B1 (ko) | 2013-09-30 | 2013-10-17 | 박막 트랜지스터 어레이 기판의 제조방법 |
| US14/124,717 US9142653B2 (en) | 2013-09-30 | 2013-10-17 | Method for manufacturing thin-film transistor array substrate |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310462524.8 | 2013-09-30 | ||
| CN201310462524.8A CN103489828B (zh) | 2013-09-30 | 2013-09-30 | 薄膜晶体管阵列基板的制造方法 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2015043008A1 true WO2015043008A1 (zh) | 2015-04-02 |
Family
ID=49829960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2013/085364 Ceased WO2015043008A1 (zh) | 2013-09-30 | 2013-10-17 | 薄膜晶体管阵列基板的制造方法 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US9142653B2 (zh) |
| JP (1) | JP6261747B2 (zh) |
| KR (1) | KR101788488B1 (zh) |
| CN (1) | CN103489828B (zh) |
| GB (1) | GB2530223B (zh) |
| WO (1) | WO2015043008A1 (zh) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104157609B (zh) * | 2014-08-20 | 2017-11-10 | 深圳市华星光电技术有限公司 | Tft基板的制作方法及其结构 |
| CN104409413B (zh) * | 2014-11-06 | 2017-12-08 | 京东方科技集团股份有限公司 | 阵列基板制备方法 |
| CN104538354B (zh) * | 2014-12-31 | 2018-01-09 | 深圳市华星光电技术有限公司 | 一种ltps tft像素单元及其制造方法 |
| CN105097548A (zh) * | 2015-06-23 | 2015-11-25 | 京东方科技集团股份有限公司 | 氧化物薄膜晶体管、阵列基板及各自制备方法、显示装置 |
| CN105676505A (zh) * | 2016-01-07 | 2016-06-15 | 武汉华星光电技术有限公司 | 在液晶面板的绝缘层上形成图案的方法及膜处理方法 |
| CN105789120B (zh) * | 2016-05-23 | 2019-05-31 | 深圳市华星光电技术有限公司 | Tft基板的制作方法及tft基板 |
| CN106094366B (zh) * | 2016-08-23 | 2019-02-01 | 深圳市华星光电技术有限公司 | Ips型阵列基板的制作方法及ips型阵列基板 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090050884A1 (en) * | 2007-08-02 | 2009-02-26 | Yan Ye | Thin film transistors using thin film semiconductor materials |
| CN102683423A (zh) * | 2012-05-08 | 2012-09-19 | 东莞彩显有机发光科技有限公司 | 一种顶栅结构金属氧化物薄膜晶体管及其制作方法 |
| CN103123912A (zh) * | 2013-02-26 | 2013-05-29 | 上海大学 | 一种顶栅tft阵列基板制造方法 |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100966420B1 (ko) * | 2003-06-30 | 2010-06-28 | 엘지디스플레이 주식회사 | 폴리실리콘 액정표시소자 및 그 제조방법 |
| KR100724485B1 (ko) * | 2005-04-19 | 2007-06-04 | 엘지.필립스 엘시디 주식회사 | 액정표시장치의 박막트랜지스터 제조방법 |
| JP5171258B2 (ja) * | 2005-12-02 | 2013-03-27 | 出光興産株式会社 | Tft基板及びtft基板の製造方法 |
| CN100570863C (zh) * | 2006-01-13 | 2009-12-16 | 中华映管股份有限公司 | 像素结构及其制造方法 |
| KR100846974B1 (ko) * | 2006-06-23 | 2008-07-17 | 베이징 보에 옵토일렉트로닉스 테크놀로지 컴퍼니 리미티드 | Tft lcd 어레이 기판 및 그 제조 방법 |
| KR101392276B1 (ko) * | 2007-10-31 | 2014-05-07 | 삼성디스플레이 주식회사 | 박막 트랜지스터 기판 및 이의 제조 방법 |
| KR100964227B1 (ko) * | 2008-05-06 | 2010-06-17 | 삼성모바일디스플레이주식회사 | 평판 표시 장치용 박막 트랜지스터 어레이 기판, 이를포함하는 유기 발광 표시 장치, 및 이들의 제조 방법 |
| CN101630098B (zh) * | 2008-07-18 | 2010-12-08 | 北京京东方光电科技有限公司 | Tft-lcd阵列基板及其制造方法 |
| JP5480554B2 (ja) * | 2008-08-08 | 2014-04-23 | 株式会社半導体エネルギー研究所 | 半導体装置 |
| KR101741732B1 (ko) * | 2010-05-07 | 2017-05-31 | 삼성디스플레이 주식회사 | 박막 트랜지스터 표시판 및 그 제조 방법 |
| US8441010B2 (en) * | 2010-07-01 | 2013-05-14 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device |
| CN103339715B (zh) * | 2010-12-03 | 2016-01-13 | 株式会社半导体能源研究所 | 氧化物半导体膜以及半导体装置 |
| TWI544525B (zh) * | 2011-01-21 | 2016-08-01 | 半導體能源研究所股份有限公司 | 半導體裝置及其製造方法 |
| US9219159B2 (en) * | 2011-03-25 | 2015-12-22 | Semiconductor Energy Laboratory Co., Ltd. | Method for forming oxide semiconductor film and method for manufacturing semiconductor device |
| KR20130053053A (ko) * | 2011-11-14 | 2013-05-23 | 삼성디스플레이 주식회사 | 유기 발광 표시 장치 및 유기 발광 표시 장치의 제조방법 |
| JP5533913B2 (ja) * | 2012-02-29 | 2014-06-25 | 株式会社豊田自動織機 | 回転電機の固定子 |
-
2013
- 2013-09-30 CN CN201310462524.8A patent/CN103489828B/zh not_active Expired - Fee Related
- 2013-10-17 US US14/124,717 patent/US9142653B2/en not_active Expired - Fee Related
- 2013-10-17 JP JP2016543288A patent/JP6261747B2/ja not_active Expired - Fee Related
- 2013-10-17 KR KR1020167006845A patent/KR101788488B1/ko not_active Expired - Fee Related
- 2013-10-17 GB GB1600109.1A patent/GB2530223B/en not_active Expired - Fee Related
- 2013-10-17 WO PCT/CN2013/085364 patent/WO2015043008A1/zh not_active Ceased
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090050884A1 (en) * | 2007-08-02 | 2009-02-26 | Yan Ye | Thin film transistors using thin film semiconductor materials |
| CN102683423A (zh) * | 2012-05-08 | 2012-09-19 | 东莞彩显有机发光科技有限公司 | 一种顶栅结构金属氧化物薄膜晶体管及其制作方法 |
| CN103123912A (zh) * | 2013-02-26 | 2013-05-29 | 上海大学 | 一种顶栅tft阵列基板制造方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| US9142653B2 (en) | 2015-09-22 |
| JP6261747B2 (ja) | 2018-01-17 |
| US20150221753A1 (en) | 2015-08-06 |
| GB2530223A (en) | 2016-03-16 |
| GB2530223B (en) | 2019-07-03 |
| KR101788488B1 (ko) | 2017-10-19 |
| GB201600109D0 (en) | 2016-02-17 |
| JP2016534580A (ja) | 2016-11-04 |
| CN103489828B (zh) | 2015-07-01 |
| CN103489828A (zh) | 2014-01-01 |
| KR20160044007A (ko) | 2016-04-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102636927B (zh) | 阵列基板及其制造方法 | |
| CN105226015B (zh) | 一种tft阵列基板及其制作方法 | |
| WO2015043008A1 (zh) | 薄膜晶体管阵列基板的制造方法 | |
| US8895334B2 (en) | Thin film transistor array substrate and method for manufacturing the same and electronic device | |
| CN105514120B (zh) | 一种双栅tft阵列基板及其制造方法和显示装置 | |
| CN106449667B (zh) | 阵列基板及其制作方法、显示装置 | |
| KR20190077570A (ko) | 어레이 기판, 그 제조 방법 및 표시 장치 | |
| CN102543867A (zh) | 一种金属氧化物薄膜晶体管阵列基板的制造方法 | |
| WO2015143745A1 (zh) | 一种阵列基板的制造方法 | |
| CN105448824A (zh) | 阵列基板及其制作方法、显示装置 | |
| CN103515375B (zh) | 阵列基板及其制造方法、以及显示装置 | |
| CN102779783A (zh) | 一种像素结构及其制造方法、显示装置 | |
| US9240424B2 (en) | Thin film transistor array substrate and producing method thereof | |
| CN106373967A (zh) | 阵列基板及其制备方法、显示装置 | |
| CN104576526B (zh) | 一种阵列基板及其制备方法和显示装置 | |
| CN102693938B (zh) | 薄膜晶体管液晶显示器、阵列基板及其制造方法 | |
| WO2016026177A1 (zh) | Tft基板的制作方法及其结构 | |
| CN108962957B (zh) | 显示基板及其制造方法、显示装置 | |
| WO2014117444A1 (zh) | 阵列基板及其制作方法、显示装置 | |
| WO2015035715A1 (zh) | Tft阵列基板制作方法及tft阵列基板、显示设备 | |
| WO2019223208A1 (zh) | 非晶硅tft基板的制作方法 | |
| WO2005093811A1 (en) | Method for manufacturing self-aligned thin film transistor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WWE | Wipo information: entry into national phase |
Ref document number: 14124717 Country of ref document: US |
|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 13894210 Country of ref document: EP Kind code of ref document: A1 |
|
| ENP | Entry into the national phase |
Ref document number: 1600109 Country of ref document: GB Kind code of ref document: A Free format text: PCT FILING DATE = 20131017 |
|
| ENP | Entry into the national phase |
Ref document number: 20167006845 Country of ref document: KR Kind code of ref document: A |
|
| ENP | Entry into the national phase |
Ref document number: 2016543288 Country of ref document: JP Kind code of ref document: A |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 13894210 Country of ref document: EP Kind code of ref document: A1 |
