摘要:
An object of the invention is to improve the reliability of a light-emitting device. Another object of the invention is to provide flexibility to a light-emitting device having a thin film transistor using an oxide semiconductor film. A light-emitting device has, over one flexible substrate, a driving circuit portion including a thin film transistor for a driving circuit and a pixel portion including a thin film transistor for a pixel. The thin film transistor for a driving circuit and the thin film transistor for a pixel are inverted staggered thin film transistors including an oxide semiconductor layer which is in contact with a part of an oxide insulating layer.
摘要:
An object is to provide a semiconductor device provided with a thin film transistor having excellent electric characteristics using an oxide semiconductor layer. An In—Sn—O-based oxide semiconductor layer including SiOX is used for a channel formation region. In order to reduce contact resistance between the In—Sn—O-based oxide semiconductor layer including SiOX and a wiring layer formed from a metal material having low electric resistance, a source region or drain region is formed between a source electrode layer or drain electrode layer and the In—Sn—O-based oxide semiconductor layer including SiOX. The source region or drain region and a pixel region are formed using an In—Sn—O-based oxide semiconductor layer which does not include SiOX.
摘要:
An oxide semiconductor layer with excellent crystallinity is formed to enable manufacture of transistors with excellent electrical characteristics for practical application of a large display device, a high-performance semiconductor device, etc. By first heat treatment, a first oxide semiconductor layer is crystallized. A second oxide semiconductor layer is formed over the first oxide semiconductor layer. By second heat treatment, an oxide semiconductor layer including a crystal region having the c-axis oriented substantially perpendicular to a surface is efficiently formed and oxygen vacancies are efficiently filled. An oxide insulating layer is formed over and in contact with the oxide semiconductor layer. By third heat treatment, oxygen is supplied again to the oxide semiconductor layer. A nitride insulating layer containing hydrogen is formed over the oxide insulating layer. By fourth heat treatment, hydrogen is supplied at least to an interface between the second oxide semiconductor layer and the oxide insulating layer.
摘要:
Disclosed is a method to manufacture a thin film transistor having an oxide semiconductor as a channel formation region. The method includes; forming an oxide semiconductor layer over a gate insulating layer; forming a source and drain electrode layers over and in contact with the oxide semiconductor layer so that at least portion of the oxide semiconductor layer is exposed; and forming an oxide insulating film over and in contact with the oxide semiconductor layer. The exposed portion of the oxide semiconductor may be exposed to a gas containing oxygen in the presence of plasma before the formation of the oxide insulating film. The method allows oxygen to be diffused into the oxide semiconductor layer, which contributes to the excellent characteristics of the thin film transistor.
摘要:
A semiconductor device is manufactured through steps in which a photoelectric conversion element and an amplifier circuit are formed over a first substrate with a release layer interposed therebetween, and the photoelectric conversion element and the amplifier circuit are separated from the first substrate. Output characteristics of the amplifier circuit are improved and the semiconductor device with high reliability is obtained. A manufacturing method of such semiconductor device includes steps of forming a metal layer having an opening portion over a substrate, forming an insulating layer over the entire surface of the substrate including the opening portion and the metal layer, forming a photoelectric conversion layer in a region which overlaps with the metal layer and is a layer over the insulating layer, forming an amplifier circuit, which amplifies an output current of the photoelectric conversion element by using a thin film transistor, in the opening portion in the metal layer, forming a protective layer over the photoelectric conversion element and the amplifier circuit, and separating the photoelectric conversion element and the amplifier circuit, together with the insulating layer, from the substrate through laser irradiation to the metal layer.
摘要:
A semiconductor device is manufactured through steps in which a photoelectric conversion element and an amplifier circuit are formed over a first substrate with a release layer interposed therebetween, and the photoelectric conversion element and the amplifier circuit are separated from the first substrate. Output characteristics of the amplifier circuit are improved and the semiconductor device with high reliability is obtained. A manufacturing method of such semiconductor device includes steps of forming a metal layer having an opening portion over a substrate, forming an insulating layer over the entire surface of the substrate including the opening portion and the metal layer, forming a photoelectric conversion layer in a region which overlaps with the metal layer and is a layer over the insulating layer, forming an amplifier circuit, which amplifies an output current of the photoelectric conversion element by using a thin film transistor, in the opening portion in the metal layer, forming a protective layer over the photoelectric conversion element and the amplifier circuit, and separating the photoelectric conversion element and the amplifier circuit, together with the insulating layer, from the substrate through laser irradiation to the metal layer.
摘要:
A semiconductor device is manufactured through steps in which a photoelectric conversion element and an amplifier circuit are formed over a first substrate with a release layer interposed therebetween, and the photoelectric conversion element and the amplifier circuit are separated from the first substrate. Output characteristics of the amplifier circuit are improved and the semiconductor device with high reliability is obtained. A manufacturing method of such semiconductor device includes steps of forming a metal layer having an opening portion over a substrate, forming an insulating layer over the entire surface of the substrate including the opening portion and the metal layer, forming a photoelectric conversion layer in a region which overlaps with the metal layer and is a layer over the insulating layer, forming an amplifier circuit, which amplifies an output current of the photoelectric conversion element by using a thin film transistor, in the opening portion in the metal layer, forming a protective layer over the photoelectric conversion element and the amplifier circuit, and separating the photoelectric conversion element and the amplifier circuit, together with the insulating layer, from the substrate through laser irradiation to the metal layer.
摘要:
A semiconductor device is manufactured through steps in which a photoelectric conversion element and an amplifier circuit are formed over a first substrate with a release layer interposed therebetween, and the photoelectric conversion element and the amplifier circuit are separated from the first substrate. Output characteristics of the amplifier circuit are improved and the semiconductor device with high reliability is obtained. A manufacturing method of such semiconductor device includes steps of forming a metal layer having an opening portion over a substrate, forming an insulating layer over the entire surface of the substrate including the opening portion and the metal layer, forming a photoelectric conversion layer in a region which overlaps with the metal layer and is a layer over the insulating layer, forming an amplifier circuit, which amplifies an output current of the photoelectric conversion element by using a thin film transistor, in the opening portion in the metal layer, forming a protective layer over the photoelectric conversion element and the amplifier circuit, and separating the photoelectric conversion element and the amplifier circuit, together with the insulating layer, from the substrate through laser irradiation to the metal layer.
摘要:
A manufacturing method of a semiconductor device capable of efficiently inspecting whether a metal silicide layer is sufficiently formed is provided. The manufacturing method is provided with the steps of forming a metal layer over a semiconductor layer containing silicon; forming a metal silicide layer over a surface of the semiconductor layer by heating the semiconductor layer and the metal layer; generating image data by performing color imaging of the metal silicide layer from above the metal silicide layer; calculating saturation of the metal silicide layer by processing the image data; and judging the formation amount of the metal silicide layer on the basis of the calculated saturation.
摘要:
A manufacturing method of a semiconductor device capable of efficiently inspecting whether a metal silicide layer is sufficiently formed is provided. The manufacturing method is provided with the steps of forming a metal layer over a semiconductor layer containing silicon; forming a metal silicide layer over a surface of the semiconductor layer by heating the semiconductor layer and the metal layer; generating image data by performing color imaging of the metal silicide layer from above the metal silicide layer; calculating saturation of the metal silicide layer by processing the image data; and judging the formation amount of the metal silicide layer on the basis of the calculated saturation.