摘要:
One of objects is to provide a semiconductor film having stable characteristics. Further, one of objects is to provide a semiconductor element having stable characteristics. Further, one of objects is to provide a semiconductor device having stable characteristics. Specifically, a structure which includes a seed crystal layer (seed layer) including crystals each having a first crystal structure, one of surfaces of which is in contact with an insulating surface, and an oxide semiconductor film including crystals growing anisotropically, which is on the other surface of the seed crystal layer (seed layer) may be provided. With such a heterostructure, electric characteristics of the semiconductor film can be stabilized.
摘要:
A light-emitting element which at least includes a monomolecular layer including a luminescent center material with a fluorescent light-emitting property, and a monomolecular layer including a host material with a carrier (electron or hole)-transport property and a band gap larger than a band gap (note that a band gap refers to the energy difference between a HOMO level and a LUMO level) of the luminescent center material, between a pair of electrodes, in which the monomolecular layer including the host material and the monomolecular layer including the luminescent center material share the same interface, is provided.
摘要:
A larger substrate can be used, and a transistor having a desirably high field-effect mobility can be manufactured through formation of an oxide semiconductor layer having a high degree of crystallinity, whereby a large-sized display device, a high-performance semiconductor device, or the like can be put into practical use. A single-component oxide semiconductor layer is formed over a substrate; then, crystal growth is carried out from a surface to an inside by performing heat treatment at 500° C. to 1000° C. inclusive, preferably 550° C. to 750° C. inclusive so that a single-component oxide semiconductor layer including single crystal regions is formed; and a multi-component oxide semiconductor layer including single crystal regions is stacked over the single-component oxide semiconductor layer including single crystal regions.
摘要:
A highly reliable semiconductor device is manufactured by giving stable electric characteristics to a transistor in which an oxide semiconductor film is used for a channel. An oxide semiconductor film which can have a first crystal structure by heat treatment and an oxide semiconductor film which can have a second crystal structure by heat treatment are formed so as to be stacked, and then heat treatment is performed; accordingly, crystal growth occurs with the use of an oxide semiconductor film having the second crystal structure as a seed, so that an oxide semiconductor film having the first crystal structure is formed. An oxide semiconductor film formed in this manner is used for an active layer of the transistor.
摘要:
A larger substrate can be used, and a transistor having a desirably high field-effect mobility can be manufactured through formation of an oxide semiconductor layer having a high degree of crystallinity, whereby a large-sized display device, a high-performance semiconductor device, or the like can be put into practical use. A first multi-component oxide semiconductor layer is formed over a substrate and a single-component oxide semiconductor layer is formed thereover; then, crystal growth is carried out from a surface to an inside by performing heat treatment at 500° C. to 1000° C. inclusive, preferably 550° C. to 750° C. inclusive so that a first multi-component oxide semiconductor layer including single crystal regions and a single-component oxide semiconductor layer including single crystal regions are formed; and a second multi-component oxide semiconductor layer including single crystal regions is stacked over the single-component oxide semiconductor layer including single crystal regions.
摘要:
An object is to provide a semiconductor device with stable electric characteristics in which an oxide semiconductor is used. An impurity such as hydrogen or moisture (e.g., a hydrogen atom or a compound containing a hydrogen atom such as H2O) is eliminated from an oxide semiconductor layer with use of a halogen element typified by fluorine or chlorine, so that the impurity concentration in the oxide semiconductor layer is reduced. A gate insulating layer and/or an insulating layer provided in contact with the oxide semiconductor layer can be formed to contain a halogen element. In addition, a halogen element may be attached to the oxide semiconductor layer through plasma treatment under an atmosphere of a gas containing a halogen element.
摘要:
A larger substrate can be used, and a transistor having a desirably high field-effect mobility can be manufactured through formation of an oxide semiconductor layer having a high degree of crystallinity, whereby a large-sized display device, a high-performance semiconductor device, or the like can be put into practical use. A first multi-component oxide semiconductor layer is formed over a substrate and a single-component oxide semiconductor layer is formed thereover; then, crystal growth is carried out from a surface to an inside by performing heat treatment at 500° C. to 1000° C. inclusive, preferably 550° C. to 750° C. inclusive so that a first multi-component oxide semiconductor layer including single crystal regions and a single-component oxide semiconductor layer including single crystal regions are formed; and a second multi-component oxide semiconductor layer including single crystal regions is stacked over the single-component oxide semiconductor layer including single crystal regions.
摘要:
One of objects is to provide a semiconductor film having stable characteristics. Further, one of objects is to provide a semiconductor element having stable characteristics. Further, one of objects is to provide a semiconductor device having stable characteristics. Specifically, a structure which includes a seed crystal layer (seed layer) including crystals each having a first crystal structure, one of surfaces of which is in contact with an insulating surface, and an oxide semiconductor film including crystals growing anisotropically, which is on the other surface of the seed crystal layer (seed layer) may be provided. With such a heterostructure, electric characteristics of the semiconductor film can be stabilized.
摘要:
An information processing system and a method for operating same are provided. The information processing system includes a first information processing apparatus and a second information processing apparatus. The first information processing apparatus is configured to display a first synchronous image in a first window, the first window having an operation right. The second information processing apparatus has a synchronous state or an asynchronous state. The second information processing apparatus is configured to: display a second synchronous image; in response to a first request, switch from the synchronous state to the asynchronous state; and in response to a second request, switch from the asynchronous state to the synchronous state.
摘要:
An electronic device includes a semiconductor device, wherein the semiconductor device includes: a word line driving unit for driving a plurality of word lines; a first cell array arranged at one side of the word line driving unit; a second cell array arranged at the other side of the word line driving unit; a bias voltage generation unit, arranged between the first cell array and the second cell array, for generating a bias voltage based on currents flowing through the first reference resistance element included in the first cell array and the second reference resistance element included in the second cell array; a first read control unit; and a second read control unit.