摘要:
A method for manufacturing a display device 10 includes a substrate supporting step for supporting a plastic substrate 19 on a support substrate 50, with the plastic substrate 19 curved, and a thin film lamination step for laminating a plurality of thin films on the plastic substrate 19 supported on the support substrate 50.
摘要:
The present invention has an object of providing a TFT in which generation of an OFF current is reduced by an efficient manufacturing method. A thin film transistor 100 according to the present invention has a gate electrode 12 formed on a substrate 10, an insulating layer 14 formed on the gate electrode 12, a microcrystalline amorphous silicon layer 18 and an amorphous silicon layer 16 that are formed on the insulating layer 14, a semiconductor layer 20 containing an impurity formed on the amorphous silicon layer 16, and a source electrode 22A and a drain electrode 22B that are formed on the semiconductor layer 20 containing an impurity. The microcrystalline amorphous silicon layer 18 and the semiconductor layer 20 containing an impurity are connected to each other through the amorphous silicon layer 16 without being in direct contact with each other.
摘要:
The present invention has an object of providing a TFT in which generation of an OFF current is reduced by an efficient manufacturing method. A thin film transistor 100 according to the present invention has a gate electrode 12 formed on a substrate 10, an insulating layer 14 formed on the gate electrode 12, a microcrystalline amorphous silicon layer 18 and an amorphous silicon layer 16 that are formed on the insulating layer 14, a semiconductor layer 20 containing an impurity formed on the amorphous silicon layer 16, and a source electrode 22A and a drain electrode 22B that are formed on the semiconductor layer 20 containing an impurity. The microcrystalline amorphous silicon layer 18 and the semiconductor layer 20 containing an impurity are connected to each other through the amorphous silicon layer 16 without being in direct contact with each other.
摘要:
A method for manufacturing a display device 10 includes a substrate supporting step for supporting a plastic substrate 19 on a support substrate 50, with the plastic substrate 19 curved, and a thin film lamination step for laminating a plurality of thin films on the plastic substrate 19 supported on the support substrate 50.
摘要:
An active matrix substrate (20a) includes a gate electrode (25) formed on an insulating substrate (10a), and a planarizing film (26) formed on the gate electrode (25) and made of a baked SOG material. The gate electrode (25) is a multilayer film including a first conductive film (27) formed on the insulating substrate (10a) and made of a metal except copper, a second conductive film (28) formed on the first conductive film (27) and made of copper, and a third conductive film (29) formed on the second conductive film (28) and made of the metal except copper.
摘要:
An object of this invention is to provide a semiconductor device in which TFTs with high mobility are arranged in both of display and peripheral circuit areas. A semiconductor device fabricating method according to the present invention includes the steps of: irradiating an amorphous silicon layer (34) with energy, thereby obtaining a microcrystalline silicon layer; and forming a doped semiconductor layer (35) on the amorphous silicon layer (34). In the step of irradiating, the amorphous silicon layer (34) is irradiated with energy that has a first quantity, thereby forming a first microcrystalline silicon layer (34A) including a channel layer for a first TFT (30A), and is also irradiated with energy that has a second quantity, which is larger than the first quantity, thereby forming a second microcrystalline silicon layer (34B) including a channel layer for a second TFT (30B).
摘要:
Disclosed is a high-quality, efficiently manufacturable thin film transistor in which leakage current is minimized. The thin film transistor is provided with a semiconductor layer (34) that contains a channel region (34C) having a microcrystalline semiconductor; source and drain contact layers (35S and 35D) that contains impurities; a first source metal layer (36S) and a first drain metal layer (36D), and a second source metal layer (37S) and a second drain metal layer (37D). The end portion of the second metal source layer (37S) is located at a position receded from the end portion of the first metal source layer (36S) and the end portion of the second drain metal layer (37D) is located at a position receded from the end portion of the first drain metal layer (36D). The semiconductor layer (34) contains low concentration impurity diffusion regions formed near the end portions of the aforementioned source contact layer (35S) and drain contact layer (35D).
摘要:
The invention provides a thin film transistor that can improve its operating speed by improving crystallinity near a bottom surface of a channel layer. Of laser light irradiated onto an amorphous silicon layer, light transmitted through the amorphous silicon layer is absorbed by a gate electrode 130 and thereby produces heat. Since the gate electrode 130 is made of a titanium layer 102 with a low thermal conductivity, the produced heat is less likely to be transmitted through a gate wiring line 110 and dissipated and thus increases the temperature of the gate electrode 130. Radiant heat from the gate electrode 130 is provided to a bottom surface of the amorphous silicon layer and thus the amorphous silicon layer is also heated from its bottom surface. As a result, an amorphous silicon layer 106a melts not only from its top surface but also from its bottom surface and is solidified, whereby crystallization proceeds, and thus, the amorphous silicon layer 106a turns into a polycrystalline silicon layer 106b. Hence, the mobility near a bottom surface of the polycrystalline silicon layer 106b also increases, improving the operating speed of a thin film transistor 100.
摘要:
An active matrix substrate (20a) includes a gate electrode (25) formed on an insulating substrate (10a), and a planarizing film (26) formed on the gate electrode (25) and made of a baked SOG material. The gate electrode (25) is a multilayer film including a first conductive film (27) formed on the insulating substrate (10a) and made of a metal except copper, a second conductive film (28) formed on the first conductive film (27) and made of copper, and a third conductive film (29) formed on the second conductive film (28) and made of the metal except copper.
摘要:
An object of this invention is to provide a semiconductor device in which TFTs with high mobility are arranged in both of display and peripheral circuit areas. A semiconductor device fabricating method according to the present invention includes the steps of: irradiating an amorphous silicon layer (34) with energy, thereby obtaining a microcrystalline silicon layer; and forming a doped semiconductor layer (35) on the amorphous silicon layer (34). In the step of irradiating, the amorphous silicon layer (34) is irradiated with energy that has a first quantity, thereby forming a first microcrystalline silicon layer (34A) including a channel layer for a first TFT (30A), and is also irradiated with energy that has a second quantity, which is larger than the first quantity, thereby forming a second microcrystalline silicon layer (34B) including a channel layer for a second TFT (30B).