摘要:
An object of the present invention is to manufacture a semiconductor device where fluctuation in electrical characteristics is small and reliability is high in a transistor in which an oxide semiconductor is used. An insulating layer from which oxygen is released by heating is used as a base insulating layer of an oxide semiconductor layer which forms a channel. Oxygen is released from the base insulating layer, whereby oxygen deficiency in the oxide semiconductor layer and an interface state between the base insulating layer and the oxide semiconductor layer can be reduced. Thus, a semiconductor device where fluctuation in electrical characteristics is small and reliability is high can be manufactured.
摘要:
Disclosed is a semiconductor device with a transistor in which an oxide semiconductor is used. An insulating layer on a back channel side of the oxide semiconductor layer has capacitance of lower than or equal to 1.5×10−10 F/m2. For example, in the case of a top-gate transistor, a base insulating layer has capacitance of lower than or equal to 1.5×10−10 F/m2, whereby the adverse effect of an interface state between the substrate and the base insulating layer can be reduced. Thus, a semiconductor device where fluctuation in electrical characteristics is small and reliability is high can be manufactured.
摘要翻译:公开了具有使用氧化物半导体的晶体管的半导体器件。 氧化物半导体层的背面通道侧的绝缘层的电容为小于或等于1.5×10 -10 F / m 2。 例如,在顶栅晶体管的情况下,基极绝缘层具有小于或等于1.5×10 -10 F / m 2的电容,由此衬底和基底绝缘层之间的界面态的不利影响 可以减少 因此,可以制造电特性波动小,可靠性高的半导体装置。
摘要:
An insulating layer containing a silicon peroxide radical is used as an insulating layer in contact with an oxide semiconductor layer for forming a channel. Oxygen is released from the insulating layer, whereby oxygen deficiency in the oxide semiconductor layer and an interface state between the insulating layer and the oxide semiconductor layer can be reduced. Accordingly, a semiconductor device where reliability is high and variation in electric characteristics is small can be manufactured.
摘要:
An insulating layer containing a silicon peroxide radical is used as an insulating layer in contact with an oxide semiconductor layer for forming a channel. Oxygen is released from the insulating layer, whereby oxygen deficiency in the oxide semiconductor layer and an interface state between the insulating layer and the oxide semiconductor layer can be reduced. Accordingly, a semiconductor device where reliability is high and variation in electric characteristics is small can be manufactured.
摘要:
An object of the present invention is to manufacture a semiconductor device where fluctuation in electrical characteristics is small and reliability is high in a transistor in which an oxide semiconductor is used. An insulating layer from which oxygen is released by heating is used as a base insulating layer of an oxide semiconductor layer which forms a channel. Oxygen is released from the base insulating layer, whereby oxygen deficiency in the oxide semiconductor layer and an interface state between the base insulating layer and the oxide semiconductor layer can be reduced. Thus, a semiconductor device where fluctuation in electrical characteristics is small and reliability is high can be manufactured.
摘要:
An object of the present invention is to provide an SOI substrate including a semiconductor layer which is efficiently planarized. A method for manufacturing an SOI substrate includes a step of irradiating a bond substrate with an accelerated ion to form an embrittlement region; a step of bonding the bond substrate and the base substrate with an insulating layer positioned therebetween; a step of splitting the bond substrate at the embrittlement region to leave a semiconductor layer bonded to the base substrate; a step of disposing the semiconductor layer in front of a semiconductor target containing the same semiconductor material as the semiconductor layer; and a step of alternately irradiating the surface of the semiconductor layer and the semiconductor target with a rare gas ion, so that the surface of the semiconductor layer is planarized.
摘要:
An inductance component includes a magnetic core (11, 12) forming a magnetic circuit having a magnetic gap, an exciting coil (14) wound around the magnetic core, and a permanent magnet (13) disposed in the magnetic gap. The permanent magnet is greater in sectional area than the magnetic core.
摘要:
In a transistor having a top-gate structure in which a gate electrode layer overlaps with an oxide semiconductor layer which forms a channel region with a gate insulating layer interposed therebetween, when a large amount of hydrogen is contained in the insulating layer, hydrogen is diffused into the oxide semiconductor layer because the insulating layer is in contact with the oxide semiconductor layer; thus, electric characteristics of the transistor are degraded. An object is to provide a semiconductor device having favorable electric characteristics. An insulating layer in which the concentration of hydrogen is less than 6×1020 atoms/cm3 is used for the insulating layer being in contact with oxide semiconductor layer which forms the channel region. Using the insulating layer, diffusion of hydrogen can be prevented and a semiconductor device having favorable electric characteristics can be provided.
摘要:
Oxygen is released from the insulating layer, whereby oxygen deficiency in the oxide semiconductor layer and an interface state between the insulating layer and the oxide semiconductor layer can be reduced. Accordingly, a semiconductor device where reliability is high and variation in electric characteristics is small can be manufactured.
摘要:
In a transistor having a top-gate structure in which a gate electrode layer overlaps with an oxide semiconductor layer which forms a channel region with a gate insulating layer interposed therebetween, when a large amount of hydrogen is contained in the insulating layer, hydrogen is diffused into the oxide semiconductor layer because the insulating layer is in contact with the oxide semiconductor layer; thus, electric characteristics of the transistor are degraded. An object is to provide a semiconductor device having favorable electric characteristics. An insulating layer in which the concentration of hydrogen is less than 6×1020 atoms/cm3 is used for the insulating layer being in contact with oxide semiconductor layer which forms the channel region. Using the insulating layer, diffusion of hydrogen can be prevented and a semiconductor device having favorable electric characteristics can be provided.