WO2015058581A1 - 薄膜晶体管及其制备方法、阵列基板、显示器 - Google Patents
薄膜晶体管及其制备方法、阵列基板、显示器 Download PDFInfo
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- H10D30/674—Thin-film transistors [TFT] characterised by the active materials
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- 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
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Definitions
- Embodiments of the present invention relate to a thin film transistor, a method of fabricating the same, an array substrate, and a display. Background technique
- TFT thin film transistor
- the active layer of the thin film transistor is required to have a carrier mobility of 1.0 cm 2 /Vs or more.
- the carrier mobility of amorphous silicon TFTs is difficult to meet the driving needs of large-size displays.
- a thin film transistor includes: a gate, a gate insulating layer, an active layer, a source and a drain.
- the active layer includes a first active layer and a second active layer, and the first active layer is disposed on a side close to the gate insulating layer, and the second active layer is disposed adjacent to the source The pole and drain sides.
- the carrier mobility of the first active layer is greater than the carrier mobility of the second active layer.
- the first active layer includes an oxynitride semiconductor active layer
- the second active layer package The metal-doped oxynitride semiconductor active layer is included.
- the thickness of the first active layer is 1.0 to 1.8 times the thickness of the second active layer.
- the metal element used for the metal doping includes at least one metal element of aluminum, gallium, germanium, indium, tin, and antimony.
- the metal doping has a total doping concentration of 0.1 to 10%.
- the thin film transistor further includes an etch barrier layer disposed over the active layer corresponding to a gap between the source and the drain.
- an array substrate includes a thin film transistor as described above, and a pixel electrode electrically connected to a drain of the thin film transistor.
- the array substrate further includes a common electrode.
- a display is provided.
- the display includes an array substrate as described above.
- a method of fabricating a thin film transistor includes: forming a gate, a gate insulating layer, an active layer, a source, and a drain on a substrate.
- Forming the active layer on the substrate includes: forming a first active layer and a second active layer on the substrate, wherein the first active layer is adjacent to a side of the gate insulating layer, the second active layer Close to the source and drain sides.
- the carrier mobility of the first active layer is greater than the carrier mobility of the second active layer.
- the first active layer includes an oxynitride semiconductor active layer
- the second active layer includes a metal-doped oxynitride semiconductor active layer
- the thickness of the first active layer is 1.0 1.8 times the thickness of the second active layer.
- the metal-doped metal element includes at least one metal element of aluminum, gallium, germanium, indium, tin, and antimony.
- the metal doping has a total doping concentration of 0.1 to 10%.
- forming the active layer, the source, and the drain on the substrate by a patterning process include:
- the forming a metal-doped oxynitride film includes: forming the metal-doped oxynitride film by a sputtering method.
- the method further includes forming an etch barrier layer formed over the active layer corresponding to a gap between the source and the drain;
- Forming the active layer, the etch stop layer, the source, and the drain on the substrate include:
- the source and the drain are formed.
- the forming a metal-doped oxynitride film comprises: forming the metal-doped oxynitride film by a sputtering method.
- FIG. 1 is a schematic structural view of a bottom-gate thin film transistor according to an embodiment of the present invention
- FIG. 2 is a schematic structural diagram 2 of a bottom-gate thin film transistor according to an embodiment of the present invention
- FIG. 4 is a schematic structural diagram of a top-gate thin film transistor according to an embodiment of the present invention
- FIG. 5 is a schematic structural diagram 1 of an array substrate according to an embodiment of the present invention
- FIG. 6 is a schematic structural view 2 of an array substrate according to an embodiment of the present invention.
- FIG. 2 is a schematic diagram of a preparation process of a bottom gate type thin film transistor according to an embodiment of the present invention
- 13 to 19 are schematic diagrams showing a preparation process of a bottom gate type thin film transistor according to an embodiment of the present invention.
- the embodiment of the present invention provides a thin film transistor, as shown in FIG. 1, including: a gate 200, a gate insulating layer 201, an active layer 300, a source 401, and a drain 402; wherein the active layer 300 includes a first active layer 301 and a second active layer 302, and the first active layer 301 is disposed adjacent to a side of the gate insulating layer 201, and the second active layer 302 is disposed adjacent to the source 401 and the drain 402 side; and, the carrier mobility of the first active layer 301 is greater than the carrier mobility of the second active layer 302.
- the active layer 300 is not limited to the above two layers, and may be two or more layers as long as the source and drain electrodes 401 and 401 are ensured along the gate insulating layer 201.
- the carrier mobility of each constituent layer of the active layer 300 may be sequentially decreased, but the layers constituting the active layer 300 are not as good as possible, and the basic performance of the thin film transistor is ensured.
- the thin film transistor is kept at a high on-state current and the leakage current of the thin film transistor is lowered.
- the active layer 300 in order not to increase the overall thickness of the active layer 300, the active layer 300 includes only the first active layer 301 and the second active layer 302 as an example. However, embodiments of the invention are not limited thereto.
- the present invention has been described by taking the bottom gate type of the thin film transistor as an example in the embodiment of the present invention, it should be understood by those skilled in the art that the first The source layer 301 and the second active layer 302 are applied to a top gate type thin film transistor or other structural thin film transistor, which is not limited herein.
- Embodiments of the present invention provide a thin film transistor including the first active layer 301 and the second active layer 302 having different carrier mobility, which are relatively high in two carrier mobility.
- the first active layer 301 having a high carrier mobility is disposed on a side close to the gate insulating layer 201, and the thin film transistor can maintain a high on state when the thin film transistor is applied to a display.
- the second active layer 302 having a relatively small carrier mobility is disposed adjacent to the source 401 and the drain 402,
- the leakage current of the thin film transistor can be reduced; therefore, the thin film transistor can reduce the leakage current of the thin film transistor while maintaining a high on-state current, thereby satisfying the large-size display while maintaining the reliability of the thin film transistor. demand.
- the first active layer 301 includes a NOx oxide semiconductor active layer
- the second active layer 302 includes a metal-doped oxynitride semiconductor active layer; that is, the first active layer
- the material of the layer 301 is a nitrogen oxide
- the material of the second active layer 302 is a metal-doped nitrogen oxide.
- the thickness of the first active layer 301 is 1.0 to 1.8 times the thickness of the second active layer 302. Since the second active layer 302 is close to the thickness of the first active layer 301, the electrical properties of the second active layer 302 and the first active layer 301 can be ensured as a whole. The difference in performance is small.
- the metal element used for the metal doping includes at least one metal element of aluminum (Al), gallium (Ga), germanium (Ge), indium (In), tin (Sn), and bismuth (Bi).
- the metal doping has a total doping concentration of 0.1 to 10%. It can be avoided that when the doping concentration is too high, it is difficult for the doping element to enter the structure of the oxynitride (ZnON) or to form other impurities.
- the nitrogen atom is easily fixed from the nitrogen oxide semiconductor. Leaving out creates a vacancy, called the nitrogen vacancy, which results in a certain number of hole carriers due to the generation of the nitrogen vacancies. A certain number of nitrogen vacancies will produce a corresponding number of hole carriers, which will attract the electron carriers in the nitrogen oxide semiconductor to generate a certain direction of motion due to the attraction of the Coulomb force. Further, the mobility of carriers in the oxynitride semiconductor is increased. Therefore, the first active layer 301 has a higher carrier mobility.
- M includes at least one metal element of Al, Ga, Ge, In, Sn, Bi, that is, the bonding strength of the chemical bond formed by the metal-doped metal atom and the nitrogen atom is greater than the atomic and nitrogen atoms.
- the Zn-N bond energy between the nitrogen atoms makes it difficult to escape from the fixed position in the metal-doped oxynitride semiconductor, thereby suppressing the generation of the nitrogen vacancies; due to the number of nitrogen vacancies There is a decrease, and correspondingly, the number of carriers in the metal-doped oxynitride semiconductor is reduced, thereby reducing the metal-doped nitriding semiconductor carrier mobility. Therefore, the second active layer 302 has a lower carrier mobility than the first active layer 301.
- the thin film transistor further includes an etch stop layer 500, and the etch stop layer 500 is disposed at the corresponding to the gap between the source 401 and the drain 402. Above the active layer 300.
- the active layer 300 in the embodiment of the present invention includes the first active layer 301 formed by the oxynitride semiconductor and the second active layer 302 formed by the metal-doped oxynitride semiconductor,
- the materials of an active layer 301 and the second active layer 302 are both metal oxynitrides, and when the active layer is exposed, it easily reacts with oxygen or water vapor in the air, thereby causing characteristics of the thin film transistor. A change has occurred. Therefore, in the embodiment of the present invention, for example, the thin film transistor further includes an etch stop layer 500, and the etch stop layer 500 is disposed at the active corresponding to the gap between the source 401 and the drain 402. Above layer 300. The etch stop layer 500 is also used to avoid affecting the active layer 300 when the metal layer on the active layer 300 is etched in a subsequent process.
- the etch stop layer 500 may also be a structure as shown in FIG. That is, the etch stop layer 500 is disposed above the active layer 300 corresponding to the gap between the source 401 and the drain 402, and the area of the etch stop layer 500 is slightly larger than the The area of the gap between the source 401 and the drain 402.
- the embodiment of the present invention does not limit the material used for the etch stop layer 500, so as to protect the active layer 300 from being affected during the subsequent metal layer formed by etching.
- the material of the etch barrier layer 500 may be, for example, a dense silicon nitride, silicon oxide, silicon oxynitride or the like.
- the embodiment of the present invention provides a bottom gate thin film transistor, as shown in FIG. 2, comprising: a gate 200, a gate insulating layer 201, an active layer 300, a source 401, and a drain 402; wherein, the active
- the layer 300 includes a first active layer 301 formed by a nitrogen oxide semiconductor and a nitrogen-oxygen co-doped by gallium and aluminum.
- the thin film transistor further includes an etch barrier layer 500 disposed over the second active layer 302 corresponding to a gap between the source 401 and the drain 402.
- the thickness of the first active layer 301 formed by the oxynitride semiconductor is 1.5 times the thickness of the second active layer 302 formed by a gallium-aluminum co-doped oxynitride semiconductor; and the gallium The total concentration of aluminum co-doping is 8%.
- the material of the second active layer 302 is a gallium-aluminum co-doped oxynitride semiconductor, wherein the bond energies of Ga-N and A1-N are greater than the bond energy of the Zn-N,
- the nitrogen atom is difficult to be separated from the fixed position in the oxynitride semiconductor in which the gallium and aluminum are co-doped, thereby suppressing the generation of the nitrogen vacancy; since the number of the nitrogen vacancies is reduced, correspondingly The number of carriers in the oxynitride semiconductor co-doped with gallium and aluminum is reduced, thereby reducing the carrier mobility of the oxynitride semiconductor which is co-doped by the gallium and aluminum. Therefore, the second active layer 302 has a lower carrier mobility than the first active layer 301.
- the first active layer 301 having a higher carrier mobility is disposed adjacent to the gate insulating layer
- the bottom gate type thin film transistor when the bottom gate type thin film transistor is applied to a display, the bottom gate type thin film transistor can maintain a high on-state current, thereby significantly improving the response speed of pixels in the display;
- the second active layer 302 having a small carrier mobility is disposed over the first active layer 301, that is, near the sides of the source 401 and the drain 402, and the thin film transistor can be lowered Leakage current; therefore, the bottom-gate thin film transistor can reduce the leakage current of the bottom-gate thin film transistor while maintaining a high on-state current, thereby satisfying the large while maintaining the reliability of the bottom-gate thin film transistor The need for a size display.
- the embodiment of the present invention provides a top gate thin film transistor, as shown in FIG. 4, comprising: a source 401 and a drain 402, an active layer 300, a gate insulating layer 201, and a gate 200, which are sequentially disposed on a substrate 100.
- the active layer 300 includes a first active layer 301 formed of a oxynitride semiconductor and a second active layer 302 formed of a ytterbium-doped oxynitride semiconductor, and the second active layer 302 is disposed.
- the first active layer 301 is disposed over the second active layer 302.
- the thickness of the first active layer 301 formed by the oxynitride semiconductor is ⁇ -doped nitrogen
- the second active layer 302 formed of the oxidized semiconductor has the same thickness; and the total concentration of the erbium doping is 2.0%.
- the material of the second active layer 302 is an erbium-doped oxynitride semiconductor, wherein the bond energy of Ge-N is greater than the bond energy of the Zn-N, making the nitrogen atom difficult to be doped from the ruthenium
- the fixed position in the hetero-nitrogen oxide semiconductor is detached, thereby reducing the carrier mobility of the ytterbium-doped oxynitride semiconductor. Therefore, the second active layer 302 has a lower carrier mobility than the first active layer 301.
- the second active layer 302 having a smaller carrier mobility is disposed over the source 401 and the drain 402, which can reduce leakage current of the thin film transistor; and at the same time, have higher carrier mobility
- the first active layer 301 is disposed over the second active layer 302, that is, near the side of the gate insulating layer 201, and can be maintained when the top gate thin film transistor is applied to a display.
- the top gate thin film transistor has a higher on-state current, thereby significantly increasing the response speed of the pixel in the display; therefore, the top gate thin film transistor can reduce the leakage current of the top gate thin film transistor While maintaining a high on-state current, the demand for a large-sized display can be satisfied while maintaining the reliability of the top-gate thin film transistor.
- the embodiment of the present invention further provides an array substrate, as shown in FIG. 5, comprising the above-mentioned thin film transistor, and a pixel electrode 600 electrically connected to the drain 402 of the thin film transistor.
- the array substrate provided by the embodiment of the present invention can be applied to a liquid crystal display device of an advanced super-dimensional field conversion type, a twisted nematic type or the like.
- the core technical characteristics of the advanced super-dimensional field conversion technology are described as follows: The electric field generated by the edge of the slit electrode in the same plane and the electric field generated between the slit electrode layer and the plate electrode layer form a multi-dimensional electric field, so that the slit electrode in the liquid crystal cell All of the aligned liquid crystal molecules directly above the electrode can be rotated, thereby improving the liquid crystal working efficiency and increasing the light transmission efficiency.
- the advanced super-dimensional field conversion technology can improve the picture quality of the TFT liquid crystal display panel, and has the advantages of high resolution, high transmittance, low power consumption, wide viewing angle, high aperture ratio, low chromatic aberration, and no squeezing water ripple.
- the array substrate further includes a common electrode 700.
- FIG. 6 only schematically shows the case where the common electrode 700 is on and the pixel electrode 600 is below.
- the array substrate may also be the common electrode 700 under and the pixel electrode 600 on.
- the common electrode 700 located in the upper layer may be formed as a strip electrode including a plurality of electrical connections. At this time, the common electrode 700 is included.
- the structure of the slit or the comb structure, the pixel electrode 600 located in the lower layer is formed into a flat plate type.
- the embodiment of the present invention is not limited thereto, and the pixel electrode 600 located in the lower layer may also be a strip electrode including a plurality of electrical connections.
- the common electrode 700 is on, and the pixel electrode 600 is on, the upper pixel electrode is in a slit shape, and the lower common electrode may be a plate electrode or a slit electrode.
- the embodiment of the invention further provides a display comprising the array substrate described above.
- the display may specifically be a product or component having any display function such as a liquid crystal display, a liquid crystal television, a digital photo frame, a mobile phone, a tablet computer, or the like.
- the embodiment of the present invention further provides a method for fabricating a thin film transistor, comprising: forming a gate 200, a gate insulating layer 201, an active layer 300, a source 401, and a drain 402 on a substrate 100;
- the forming the active layer 300 on the substrate 100 includes: forming a first active layer 301 and a second active layer 302 on the substrate 100, and the first active layer 301 is adjacent to the gate insulating layer 201 a side, the second active layer 302 is adjacent to the source 401 and the drain 402 side; and, the carrier mobility of the first active layer 301 is greater than that of the second active layer 302 Carrier mobility.
- the first active layer 301 includes an oxynitride semiconductor active layer
- the second active layer 302 includes a metal-doped oxynitride semiconductor active layer.
- the thickness of the first active layer 301 is 1.0 to 1.8 times the thickness of the second active layer 302.
- the metal element used for the metal doping includes at least one metal element of aluminum (Al), gallium (Ga), germanium (Ge), indium (In), tin (Sn), and bismuth (Bi).
- the metal doping has a total doping concentration of 0.1 to 10%.
- the active layer 300, the source 401, and the drain 402 described above may be formed by one patterning process.
- a NOx film, a metal-doped oxynitride film, and a metal film are sequentially formed on the substrate 100, and a photoresist layer is formed on the metal film; and a half-order mask or a gray-scale mask is used.
- Forming, exposing, developing, and etching the substrate on which the photoresist is formed to form the first active layer 301 of the oxynitride semiconductor, and the metal doped oxynitride semiconductor The second active layer 302, and the source 401 and the drain 402 are described.
- the film formed by the sputtering method has the advantages of uniform film formation, smooth surface, controllable film thickness, controllable doping concentration, and the like; therefore, the metal-doped nitrogen oxide film can be formed by magnetron sputtering.
- Exposing the substrate on which the photoresist layer is formed with a half-order mask or a gray-scale mask After the light, the development, and the etching, the forming the first active layer 301, the second active layer 302, and the source 401 and the drain 402 may be:
- ⁇ After exposing and developing the substrate on which the photoresist layer is formed by using a half-order mask or a gray-scale mask, forming a completely retained portion of the photoresist, a semi-retained portion of the photoresist, and completely removing the photoresist a portion of the photoresist that is completely reserved corresponds to the source 401 and the drain 402 to be formed, and the semi-reserved portion of the photoresist corresponds to between the source 401 and the drain 402 to be formed. In the gap, the completely removed portion of the photoresist corresponds to other regions.
- the oxynitride film, the metal-doped oxynitride film, and the metal thin film of the completely removed portion of the photoresist are removed by an etching process, and the first active layer 301 and the second active layer are formed.
- the photoresist of the semi-retained portion of the photoresist is removed by an ashing process, and the exposed metal thin film is removed by an etching process to form the source 401 and the drain 402.
- the first active layer 301, the second active layer 302, and the source 401 and the drain 402 can be formed by one patterning process, which can reduce the number of patterning processes, thereby reducing the cost.
- the thin film transistor may also be a top gate type thin film transistor.
- the method includes forming on the substrate 100 by a first patterning process.
- the source electrode 401 and the drain electrode 402 are further formed on the source electrode 401 and the drain electrode 402 by a second patterning process, and the active layer 300 includes a region formed by a nitrogen oxide semiconductor.
- a gate insulating layer 201 and a gate electrode 200 are formed.
- the method further includes forming an etch stop layer 500, the etch stop layer 500 forming the active corresponding to a gap between the source 401 and the drain 402, as shown in FIG. Above layer 300.
- the etch stop layer 500 may also refer to FIG.
- forming the active layer 300, the etch stop layer 500, the source 401 and the drain 402 on the substrate include:
- a metal thin film is formed on the substrate 100 on which the active layer 300 and the etch stop layer 500 are formed, and the photoresist layer is formed on the metal thin film; After the substrate 100 on which the photoresist layer is formed is exposed, developed, and etched, the source electrode 401 and the drain electrode 402 are formed.
- the film formed by the sputtering method has the advantages of uniform film formation, smooth surface, controllable film thickness, controllable doping concentration, and the like; therefore, the metal-doped nitrogen oxide film can be formed by magnetron sputtering.
- Example three Two specific examples are provided below to describe in detail the preparation method of the above thin film transistor.
- Example three Two specific examples are provided below to describe in detail the preparation method of the above thin film transistor.
- the method for fabricating the above thin film transistor is described in detail by taking a bottom gate type thin film transistor as an example.
- the method includes the following steps:
- a metal thin film is formed on the substrate 100, and a gate electrode 200 is formed on the substrate 100 by one patterning process.
- a copper elemental metal film having a thickness of 1000 7000 A can be prepared on a glass substrate by a magnetron sputtering method. Then, a patterning process such as exposure, development, etching, and peeling is performed by a common mask, and the gate electrode 200 is formed in a certain region of the substrate 100, and a gate line, a gate line lead, or the like is also formed.
- a gate insulating layer 201 is formed on the substrate on which step S01 is completed.
- a gate insulating film having a thickness of about 1000 6000 A may be deposited on the substrate on which the gate electrode 200 is formed by chemical vapor deposition, and the material of the gate insulating film is usually silicon nitride or silicon oxide. And silicon oxynitride.
- step S03 sequentially forming a nitrogen oxide film 301a on the substrate on which step S02 is completed,
- the gallium and aluminum are commonly doped with the oxynitride film 302a and the metal thin film 400, and a photoresist layer 800 is formed on the metal thin film.
- a nitrogen oxide film 301a having a thickness of about 100 8000 A and a gallium or aluminum co-doped oxynitride film 302a having a thickness of about 100 8000 A may be deposited on the substrate by magnetron sputtering; and then on the substrate.
- a molybdenum metal film 400 having a thickness of about 1000 7000 A is deposited, and a photoresist layer 800 is coated on the molybdenum metal film 400.
- the photoresist completely remaining portion 801 corresponds to the source 401 and the drain 402 to be formed, and the photoresist half-retaining portion 802 corresponds to a gap between the source 401 and the drain 402 to be formed.
- the photoresist completely removed portion 803 corresponds to other regions.
- a conventional reticle refers to a device having a specific pattern of a light-shielding metal layer formed on a transparent substrate material to effect selective exposure of the photoresist layer 800.
- the area covered by the light shielding metal layer is completely opaque, and the area not covered by the light shielding metal layer is completely transparent; the photoresist layer 800 is exposed through the common mask, due to ultraviolet The light cannot be irradiated to a portion of the photoresist layer 800 corresponding to the completely opaque portion of the normal reticle, thereby forming the photoresist completely remaining portion 801 after development, and the completely transparent portion of the normal reticle
- the corresponding photoresist layer 800 forms a photoresist completely removed portion 803 after development; thus, when etching the photoresist-covered film, the photoresist completely retains the film covered by the portion 801 Both are retained, and the film covered by the photoresist completely removed portion 803 is completely etched away to form at least one pattern layer having a specific pattern.
- the patterns of the at least one pattern layer are the same; and when it is required to obtain at least two pattern layers of different patterns by one patterning process, the half-level mask is needed. 900.
- the half-order mask 900 is compared with the conventional mask, and the half-step mask 900 includes a translucent portion in addition to the fully opaque portion 901 and the completely transparent portion 903. 902; that is: the half-order mask 900 is formed on certain areas of the transparent substrate material.
- An opaque light-shielding metal layer forms a semi-transmissive light-shielding metal layer in other regions, and no other light-shielding metal layer is formed in other regions; wherein the semi-transmissive light-shielding metal layer has a thickness smaller than the completely opaque metal layer The thickness of the light-shielding metal layer; in addition, the transmittance of the semi-transmissive light-shielding metal layer to ultraviolet light can be changed by adjusting the thickness of the semi-transmissive light-shielding metal layer.
- the working principle of the half-order mask 900 is as follows: By controlling the thickness of the light-shielding metal layer at different regions on the half-stage mask 900, the intensity of transmitted light in different regions during exposure is Differently, after the photoresist layer 800 is selectively exposed and developed, a photolithography corresponding to the completely opaque portion 901, the translucent portion 902, and the completely transparent portion 903 of the half-order mask 900 is formed. The glue completely remains portion 801, the photoresist half-retained portion 802, and the photoresist completely removed portion 803.
- the film covered by the photoresist completely remaining portion 801 and the photoresist half-retaining portion 802 are retained, and thereafter, since the thickness of the photoresist completely remains portion 801 More than the thickness of the photoresist half-retaining portion 802, after the photoresist of the photoresist half-retaining portion 802 is ashed, the photoresist of the photoresist completely remaining portion 801 still exists, so that The exposed portions of the film are selectively etched to obtain at least two patterned layers of different patterns.
- the principle of the gray-scale mask is similar to the principle of the half-order mask 900, and is not described herein again. Only the difference between the gray-scale mask and the half-order mask 900 is Description:
- the translucent portion 902 of the half-order mask is formed by forming a semi-transparent light-shielding metal layer having a relatively thin thickness on the transparent substrate material, that is, adjusting the ultraviolet layer by controlling the thickness of the metal layer.
- the transmittance of light so that the exposure amount of the photoresist corresponding to the portion is different from the exposure amount of other regions; and the translucent portion of the gray scale mask is formed by forming a narrow strip-shaped slit structure
- an optical phenomenon such as scattering or diffraction occurs, so that the exposure amount of the photoresist corresponding to the portion is different from the exposure amount of the other regions.
- the photoresist layer 800 referred to in all the embodiments of the present invention is a positive adhesive, that is, in the half-order mask 900, the corresponding region of the photoresist completely removed portion 803 is a fully exposed region.
- the corresponding region of the photoresist half-retaining portion 802 is a half-exposure region corresponding to the translucent portion 902 of the half-order mask 900, the light
- the area corresponding to the fully-retained portion 801 is an unexposed area corresponding to the fully opaque portion 901 of the half-order mask 900.
- the embodiment of the present invention is not limited thereto, and the photoresist layer 800 may also be a negative glue. 505.
- the active layer 300 includes the first active layer 301 formed near the oxynitride semiconductor of the gate insulating layer 201, and a metal doped oxynitride semiconductor formed over the first active layer 301
- the photoresist 800 of the photoresist semi-retaining portion 802 is removed by an ashing process, and the exposed metal film 400 is removed by an etching process to form the source electrode 401. And the drain 402.
- the method for fabricating the above thin film transistor is described in detail by taking a bottom gate type thin film transistor as an example.
- the method includes the following steps:
- a metal thin film is formed on the substrate 100, and a gate electrode 200 is formed on the substrate 100 by a patterning process.
- a copper elemental metal film having a thickness of 1000 7000 A can be prepared on a glass substrate by a magnetron sputtering method. Then, a patterning process such as exposure, development, etching, and peeling is performed by a common mask, and the gate electrode 200 is formed in a certain region of the substrate 100, and a gate line, a gate line lead, or the like is also formed.
- a gate insulating layer 201 is formed on the substrate on which step S11 is completed.
- a gate insulating film having a thickness of about 1000 6000 A may be deposited on the substrate on which the gate electrode 200 is formed by chemical vapor deposition, and the material of the gate insulating film is usually silicon nitride or silicon oxide. And silicon oxynitride.
- an oxynitride film 301a, an indium-doped oxynitride film 302a, and an etch barrier film 500a are sequentially formed on the substrate on which step S12 is completed, and the etch barrier film 500a is formed on the substrate.
- a photoresist layer 800 is formed thereon.
- a nitrogen oxide film 301a having a thickness of about 100 8000 A and an indium-doped oxynitride film 302a having a thickness of about 100 8000 A may be deposited on the substrate by magnetron sputtering;
- a silicon nitride etch barrier film 500a having a thickness of about 500 3000 A is deposited on the substrate, and a photoresist layer 800 is coated on the silicon nitride etch barrier film 500a.
- a photoresist completely remaining portion 801 and a photoresist semi-retained portion 802 are formed.
- the portion 803 is completely removed with the photoresist.
- the photoresist completely remaining portion 801 corresponds to the etch stop layer 500 to be formed, and the photoresist half-retaining portion 802 does not cover the active layer 300 corresponding to the etch stop layer 500 to be formed. In part, the photoresist completely removed portion 803 corresponds to other regions.
- the active layer 300 is formed.
- the active layer 300 includes the first active layer 301 formed near the oxynitride semiconductor of the gate insulating layer 201, and a metal doped oxynitride semiconductor formed over the first active layer 301
- the photoresist 800 of the photoresist semi-retained portion 802 is removed by an ashing process, and the exposed etch barrier film 500a is removed by an etching process to form the The barrier layer 500 is etched.
- the photoresist 800 of the photoresist completely remaining portion 801 is removed by a lift-off process.
- a molybdenum metal film 400 having a thickness of about 100 7000A is formed on the substrate on which step S16 is completed, and a photoresist layer 800 is formed on the molybdenum metal film 400.
- the photoresist completely remaining portion 801 corresponds to the source 401 and the drain 402 to be formed, and the photoresist completely removed portion 803 corresponds to a gap between the source 401 and the drain 402 to be formed and Other areas.
- the molybdenum metal film 400 corresponding to the photoresist completely removed portion 803 is removed by an etching process to form the source electrode 401 and the drain electrode 402.
- a protective layer exposing the drain 402 may be sequentially formed, and a pixel electrode connected to the drain 402 through the via hole is formed to be formed.
- a passivation layer and a common electrode may be sequentially formed over the pixel electrode.
Landscapes
- Thin Film Transistor (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US14/436,953 US9929277B2 (en) | 2013-10-21 | 2014-08-21 | Thin film transistor and fabrication method thereof, array substrate and display |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310495817.6 | 2013-10-21 | ||
| CN201310495817.6A CN103500764B (zh) | 2013-10-21 | 2013-10-21 | 一种薄膜晶体管及其制备方法、阵列基板、显示器 |
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| WO2015058581A1 true WO2015058581A1 (zh) | 2015-04-30 |
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| Country | Link |
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| US (1) | US9929277B2 (zh) |
| CN (1) | CN103500764B (zh) |
| WO (1) | WO2015058581A1 (zh) |
Families Citing this family (32)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103500764B (zh) * | 2013-10-21 | 2016-03-30 | 京东方科技集团股份有限公司 | 一种薄膜晶体管及其制备方法、阵列基板、显示器 |
| CN103715137B (zh) * | 2013-12-26 | 2018-02-06 | 京东方科技集团股份有限公司 | 阵列基板及其制造方法、显示装置 |
| CN103779232B (zh) * | 2014-01-28 | 2016-08-17 | 北京京东方光电科技有限公司 | 一种薄膜晶体管的制作方法 |
| CN104362179B (zh) | 2014-10-13 | 2017-04-26 | 京东方科技集团股份有限公司 | 一种薄膜晶体管、其制作方法、阵列基板及显示装置 |
| CN104300007A (zh) * | 2014-10-27 | 2015-01-21 | 京东方科技集团股份有限公司 | 薄膜晶体管及其制作方法、阵列基板、显示装置 |
| CN107112235B (zh) * | 2015-01-07 | 2020-11-20 | 株式会社国际电气 | 半导体器件的制造方法、衬底处理装置及记录介质 |
| US20160225915A1 (en) * | 2015-01-30 | 2016-08-04 | Cindy X. Qiu | Metal oxynitride transistor devices |
| US20160308067A1 (en) * | 2015-04-17 | 2016-10-20 | Ishiang Shih | Metal oxynitride transistor devices |
| CN104916546B (zh) * | 2015-05-12 | 2018-03-09 | 京东方科技集团股份有限公司 | 阵列基板的制作方法及阵列基板和显示装置 |
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| CN105280717B (zh) * | 2015-09-23 | 2018-04-20 | 京东方科技集团股份有限公司 | Tft及其制作方法、阵列基板及显示装置 |
| CN105304652B (zh) * | 2015-11-25 | 2018-04-03 | 深圳市华星光电技术有限公司 | 阵列基板、显示器及阵列基板的制备方法 |
| KR102416470B1 (ko) * | 2015-12-21 | 2022-07-04 | 엘지디스플레이 주식회사 | 광효율 향상을 위한 표시패널, 표시장치 및 표시패널을 제조하는 방법 |
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| CN112103246A (zh) * | 2020-09-23 | 2020-12-18 | 福建华佳彩有限公司 | 一种tft阵列基板结构及制作方法 |
| CN112802904A (zh) * | 2020-12-29 | 2021-05-14 | 重庆先进光电显示技术研究院 | 薄膜晶体管器件的制作方法、薄膜晶体管器件及显示装置 |
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| CN114122142A (zh) * | 2021-11-03 | 2022-03-01 | Tcl华星光电技术有限公司 | 薄膜晶体管、阵列基板以及显示面板 |
| CN116799007A (zh) * | 2022-03-14 | 2023-09-22 | 长鑫存储技术有限公司 | 半导体结构、阵列结构、多层堆叠结构及其制备方法 |
| CN114784015B (zh) * | 2022-03-28 | 2025-09-19 | 京东方科技集团股份有限公司 | 一种显示基板、其制作方法、驱动方法及显示装置 |
| WO2023184421A1 (zh) * | 2022-03-31 | 2023-10-05 | 京东方科技集团股份有限公司 | 薄膜晶体管、显示基板和显示装置 |
| CN114744014B (zh) * | 2022-04-02 | 2024-09-03 | 厦门天马显示科技有限公司 | 显示面板和显示装置 |
| CN120897507A (zh) * | 2022-06-20 | 2025-11-04 | 深圳市华星光电半导体显示技术有限公司 | 阵列基板及显示面板 |
| CN115132747A (zh) * | 2022-06-20 | 2022-09-30 | 昆山国显光电有限公司 | 显示面板及显示装置 |
| CN115295564A (zh) * | 2022-09-27 | 2022-11-04 | 广州华星光电半导体显示技术有限公司 | 阵列基板和显示面板 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090085033A1 (en) * | 2007-09-29 | 2009-04-02 | Chunghwa Picture Tubes, Ltd. | Thin film transistor, pixel structure and fabrication methods thereof |
| CN101630692A (zh) * | 2008-07-14 | 2010-01-20 | 三星电子株式会社 | 沟道层和包括该沟道层的晶体管 |
| CN101688286A (zh) * | 2007-04-27 | 2010-03-31 | 应用材料股份有限公司 | 利用氮气通过反应溅射锌靶形成的薄膜半导体材料 |
| CN102769039A (zh) * | 2012-01-13 | 2012-11-07 | 京东方科技集团股份有限公司 | 一种薄膜晶体管及其制造方法、阵列基板和显示器件 |
| CN103500710A (zh) * | 2013-10-11 | 2014-01-08 | 京东方科技集团股份有限公司 | 一种薄膜晶体管制作方法、薄膜晶体管及显示设备 |
| CN103500764A (zh) * | 2013-10-21 | 2014-01-08 | 京东方科技集团股份有限公司 | 一种薄膜晶体管及其制备方法、阵列基板、显示器 |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6104042A (en) * | 1999-06-10 | 2000-08-15 | Chi Mei Optoelectronics Corp. | Thin film transistor with a multi-metal structure a method of manufacturing the same |
| KR101090249B1 (ko) * | 2004-10-06 | 2011-12-06 | 삼성전자주식회사 | 박막 트랜지스터 표시판의 제조 방법 |
| KR101268388B1 (ko) * | 2005-12-30 | 2013-05-28 | 엘지디스플레이 주식회사 | 액정표시소자 제조방법 |
| KR101278477B1 (ko) * | 2006-11-07 | 2013-06-24 | 삼성디스플레이 주식회사 | 박막 트랜지스터 기판의 제조 방법 |
| CN101266951B (zh) * | 2008-05-05 | 2012-02-01 | 友达光电股份有限公司 | 显示装置的栅极驱动电路以及制作显示装置的器件的方法 |
| KR20100067612A (ko) * | 2008-12-11 | 2010-06-21 | 가부시키가이샤 한도오따이 에네루기 켄큐쇼 | 박막 트랜지스터 및 표시 장치 |
| US8492756B2 (en) * | 2009-01-23 | 2013-07-23 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device and method for manufacturing the same |
| US8247276B2 (en) * | 2009-02-20 | 2012-08-21 | Semiconductor Energy Laboratory Co., Ltd. | Thin film transistor, method for manufacturing the same, and semiconductor device |
| US8013339B2 (en) * | 2009-06-01 | 2011-09-06 | Ishiang Shih | Thin film transistors and arrays with controllable threshold voltages and off state leakage current |
| KR101733718B1 (ko) * | 2009-09-24 | 2017-05-10 | 어플라이드 머티어리얼스, 인코포레이티드 | 소스 및 드레인 금속 식각을 위해 습식 프로세스를 이용하여 금속 산화물 또는 금속 산질화물 tft들을 제조하는 방법들 |
| US20130037807A1 (en) * | 2010-03-11 | 2013-02-14 | Sharp Kabushiki Kaisha | Semiconductor device and method for manufacturing the same |
| KR101963226B1 (ko) * | 2012-02-29 | 2019-04-01 | 삼성전자주식회사 | 트랜지스터와 그 제조방법 및 트랜지스터를 포함하는 전자소자 |
| CN102709239B (zh) * | 2012-04-20 | 2014-12-03 | 京东方科技集团股份有限公司 | 显示装置、阵列基板及其制造方法 |
| CN103123910B (zh) * | 2012-10-31 | 2016-03-23 | 京东方科技集团股份有限公司 | 阵列基板及其制造方法、显示装置 |
-
2013
- 2013-10-21 CN CN201310495817.6A patent/CN103500764B/zh active Active
-
2014
- 2014-08-21 WO PCT/CN2014/084932 patent/WO2015058581A1/zh not_active Ceased
- 2014-08-21 US US14/436,953 patent/US9929277B2/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101688286A (zh) * | 2007-04-27 | 2010-03-31 | 应用材料股份有限公司 | 利用氮气通过反应溅射锌靶形成的薄膜半导体材料 |
| US20090085033A1 (en) * | 2007-09-29 | 2009-04-02 | Chunghwa Picture Tubes, Ltd. | Thin film transistor, pixel structure and fabrication methods thereof |
| CN101630692A (zh) * | 2008-07-14 | 2010-01-20 | 三星电子株式会社 | 沟道层和包括该沟道层的晶体管 |
| CN102769039A (zh) * | 2012-01-13 | 2012-11-07 | 京东方科技集团股份有限公司 | 一种薄膜晶体管及其制造方法、阵列基板和显示器件 |
| CN103500710A (zh) * | 2013-10-11 | 2014-01-08 | 京东方科技集团股份有限公司 | 一种薄膜晶体管制作方法、薄膜晶体管及显示设备 |
| CN103500764A (zh) * | 2013-10-21 | 2014-01-08 | 京东方科技集团股份有限公司 | 一种薄膜晶体管及其制备方法、阵列基板、显示器 |
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| Publication number | Publication date |
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| US20160005870A1 (en) | 2016-01-07 |
| CN103500764B (zh) | 2016-03-30 |
| CN103500764A (zh) | 2014-01-08 |
| US9929277B2 (en) | 2018-03-27 |
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