Abstract:
PROBLEM TO BE SOLVED: To provide a highly reliable semiconductor device comprising a thin film transistor having stable electric characteristics, and a method of manufacturing a highly reliable semiconductor device with a low cost and high productivity.SOLUTION: In a semiconductor device comprising a thin film transistor, a semiconductor layer of the thin film transistor is formed with an oxide semiconductor layer to which a metal element is added. As the metal element, at least one kind or more of metal elements of iron, nickel, cobalt, copper, gold, molybdenum, tungsten, niobium, and tantalum is used. In addition, the oxide semiconductor layer contains indium, gallium, and zinc.
Abstract:
PROBLEM TO BE SOLVED: To perform deposition while uniformly mixing deposition materials by narrowing the distance between vessels, thereby solving the problem that in the case of co-deposition, the distance between vessels becomes large because of slanting even a heater that surrounds the vessel for housing deposition materials, which results in difficulty in uniformly mixing the deposition materials.SOLUTION: This invention relates to a vessel for housing the deposition materials disposed on the deposition source of a deposition device, the vessel having an opening part and a guide part. By using such a vessel, an angle of a first deposition material darting out of the first opening is adjusted by a first guide part, thereby conducting co-deposition while mixing uniformly.
Abstract:
PROBLEM TO BE SOLVED: To enhance aperture ratio of a semiconductor device.SOLUTION: A semiconductor device comprises a driving circuit portion and a display portion (called as a pixel portion), on the same substrate, the driving circuit portion comprises: a channel etched type thin film transistor for a driving circuit comprising a source electrode and a drain electrode constituted of metal and, comprising a channel layer constituted of an oxide semiconductor; and wiring for the driving circuit constituted of metal; and the display portion comprises a channel protective type thin film transistor for a pixel comprising a source electrode layer and a drain electrode layer constituted of an oxide conductor, and comprising a semiconductor layer constituted of the oxide semiconductor, and wiring for the display portion constituted of the oxide conductor.
Abstract:
PROBLEM TO BE SOLVED: To provide a color filter structure independent of bonding accuracy of an encapsulated substrate for a display part; and provide a structure appropriate for a terminal part on a periphery of the display part.SOLUTION: In a semiconductor device, a display part includes a transistor having an oxide semiconductor layer. The display part includes a color filter layer arranged under a first electrode of a light-emitting element. Light from the light-emitting element is emitted through the color filter. At a terminal part on a periphery of the display part, a lamination structure on the pattern of a structure of the transistor is formed and potential of a conductive layer which is the same layer with a gate electrode is in a floating state. The structure takes countermeasures against static electricity and noise.