Thin film transistor, preparation method thereof, array substrate and display device
A thin-film transistor and array substrate technology, applied in the display field, can solve the problems of excessive parasitic capacitance of TFT, poor light stability, low device mobility, etc., and achieve the effects of reducing resistance, improving yield, and simplifying the manufacturing process
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[0053] In order to make the above objectives, features and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0054] In an embodiment of this application, refer to figure 2 , Shows a schematic cross-sectional structure of a thin film transistor, the thin film transistor may include: a substrate 10 and an active layer 11 and a first source drain electrode 12 disposed on the substrate 10, the first source drain electrode 12 and the active layer 11 connection; the first insulating layer 13 and the gate 14 are stacked on the active layer 11, and the gate 14 has the same thickness and material as the first source and drain electrodes 12.
[0055] Specifically, the active layer 11 is the active layer, including an active region or a channel region, and the material may be amorphous silicon, low-temperature polysilicon or metal oxide mat...
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