Patent classifications
H10D30/0321
TFT and manufacturing method thereof, array substrate and manufacturing method thereof, X-ray detector and display device
A TFT and manufacturing method thereof, an array substrate and manufacturing method thereof, an X-ray detector and a display device are disclosed. The manufacturing method includes: forming a gate-insulating-layer thin film (3), a semiconductor-layer thin film (4) and a passivation-shielding-layer thin film (5) successively; forming a pattern (5) that includes a passivation shielding layer through one patterning process, so that a portion, sheltered by the passivation shielding layer, of the semiconductor-layer thin film forms a pattern of an active layer (4a); and performing an ion doping process to a portion, not sheltered by the passivation shielding layer, of the semiconductor-layer thin film to form a pattern comprising a source electrode (4c) and a drain electrode (4b). The source electrode (4c) and the drain electrode (4b) are disposed on two sides of the active layer (4a) respectively and in a same layer as the active layer (4a). The manufacturing method can reduce the number of patterning processes and improve the performance of the thin film transistor in the array substrate.
Advanced excimer laser annealing for thin films
The present disclosure relates to a new generation of laser-crystallization approaches that can crystallize Si films for large displays at drastically increased effective crystallization rates. The particular scheme presented in this aspect of the disclosure is referred to as the advanced excimer-laser annealing (AELA) method, and it can be readily configured for manufacturing large OLED TVs using various available and proven technical components. As in ELA, it is mostly a partial-/near-complete-melting-regime-based crystallization approach that can, however, eventually achieve greater than one order of magnitude increase in the effective rate of crystallization than that of the conventional ELA technique utilizing the same laser source.
Flexible organic electroluminescent device and method of fabricating the same
A flexible organic electroluminescent device is disclosed which includes: a flexible substrate; a buffer layer entirely formed on the flexible substrate; a thin film transistor formed on the buffer layer and configured to include an active layer; a planarization film formed to cover the thin film transistor; an organic light emitting diode formed on the planarization film and configured to include a first electrode, an organic emission layer and a second electrode; and at least one silicon nitride layer formed above the active layer of the thin film transistor but under the planarization film and patterned into a plurality of island patterns.
Manufacturing method of low temperature polysilicon thin film transistor
The invention provides a manufacturing method of a low temperature polysilicon thin film transistor, including: providing a substrate; forming a buffer layer on the substrate; simultaneously forming a polysilicon layer and a photoresist layer on the buffer layer; implanting ions into a source region and a drain region; removing the photoresist layer; forming an insulating layer on the polysilicon layer; forming a gate electrode on the insulating layer; and forming a passivation layer on the insulating layer. The passivation layer covers the gate electrode. The invention can only use one time of mask process and one time of ion implantation process to complete the manufacturing processing of the polysilicon layer, the manufacturing process can be simplified and therefore the cost of process is reduced and the productivity is improved.
Thin film transistor substrate, display apparatus including the same, method of manufacturing thin film transistor substrate, and method of manufacturing display apparatus
Thin film transistor substrate includes: a substrate; a crystalline silicon layer on the substrate; and a capping layer covering the crystalline silicon layer and including a first portion having a first thickness and a second portion having a second thickness that is greater than the first thickness.
Semiconductor Electronic Devices And Methods Of Manufacture Thereof
A method of manufacturing an electronic device comprises: providing a layer of semiconductor material comprising a first portion, a second portion, and a third portion, the third portion connecting the first portion to the second portion and providing a semiconductive channel for electrical current flow between the first and second portions; providing a gate terminal arranged with respect to said third portion such that a voltage may be applied to the gate terminal to control an electrical conductivity of said channel; and processing at least one of the first and second portions so as to have an electrical conductivity greater than an electrical conductivity of the channel when no voltage is applied to the gate terminal. In certain embodiments, the processing comprises exposing at least one of the first and second portions to electromagnetic radiation. The first and second portions may be laser annealed to increase their conductivities.
Methods of Manufacturing Transistors Including Forming a Depression in a Surface of a Covering of Resist Material
A method of manufacturing a transistor comprising: providing a substrate, a region of semiconductive material supported by the substrate, and a region of electrically conductive material supported by the region of semiconductive material; forming at least one layer of resist material over said regions to form a covering of resist material over said regions; forming a depression in a surface of the covering of resist material, said depression extending over a first portion of said region of conductive material, said first portion separating a second portion of the conductive region from a third portion of the conductive region; removing resist material located under said depression so as to form a window, through said covering, exposing said first portion of the electrically conductive region; removing said first portion to expose a connecting portion of the region of semiconductive material, said connecting portion connecting the second portion to the third portion of the conductive region; forming a layer of dielectric material over the exposed portion of the region of semiconductive material; and depositing electrically conductive material to form a layer of electrically conductive material over said layer of dielectric material, the layer of dielectric material electrically isolating the layer of electrically conductive material from the second and third portions of the conductive region.
METHOD FOR MANUFACTURING ARRAY SUBSTRATE AND MANUFACTURING DEVICE
Embodiments of the present invention disclose a manufacturing method for an array substrate and corresponding manufacturing device, which belong to the technical field of metal oxide semiconductor. The method comprises: forming an active layer, a gate insulating layer and a gate metal layer successively on a substrate; forming a gate pattern with a gate photoresist pattern on the substrate having the gate metal layer; altering a temperature of the gate photoresist pattern, so as to enable the width of the gate photoresist sub-pattern in the gate photoresist pattern to be changed; forming lightly doped drains (LDDs) at two sides of a preset area of the active layer sub-pattern in the active layer of the substrate having the changed gate photoresist pattern, the preset area being a projection area of the gate sub-pattern on the active layer sub-pattern, the length of each of the LDDs being (ab)/2, wherein a is the width of the gate photoresist sub-pattern in the changed gate photoresist pattern, b is the width of the gate sub-pattern; stripping the changed gate photoresist pattern. The embodiment of the present invention mitigates or alleviates the problem of relatively low control flexibility and relatively poor feasibility to the LDD length, which improves the control flexibility and feasibility to the LDD length, and can be used for manufacturing an array substrate.
COMBO AMORPHOUS AND LTPS TRANSISTORS
The present disclosure generally relates to an improved large area substrate thin film transistor device, and method of fabrication thereof. More specifically, amorphous and LTPS transistors are formed by first forming an amorphous silicon layer, annealing the amorphous silicon layer to form polycrystalline silicon, depositing a masking layer over a first portion of the polycrystalline silicon layer, implanting a second portion of the polycrystalline silicon layer with an amorphizing species, and removing the masking layer.
Thin film transistor array panel and manufacturing method thereof
A thin film transistor array panel includes a substrate, gate lines, each including a gate pad, a gate insulating layer, data lines, each including a data pad connected to a source and drain electrode, a first passivation layer disposed on the data lines and the drain electrode, a first electric field generating electrode, a second passivation layer disposed on the first electric field generating electrode, and a second electric field generating electrode. The gate insulating layer and the first and second passivation layers include a first contact hole exposing a part of the gate pad, the first and second passivation layers include a second contact hole exposing a part of the data pad, and at least one of the first and second contact holes have a positive taper structure having a wider area at an upper side than at a lower side.