Method of manufacturing semiconductor device and semiconductor device

    公开(公告)号:US10366914B2

    公开(公告)日:2019-07-30

    申请号:US15861363

    申请日:2018-01-03

    Inventor: Hideki Makiyama

    Abstract: In a manufacturing method for a semiconductor device formed over an SOI substrate, a first epitaxial layer is partially formed over an outer circumference end of a first semiconductor layer in a wide active region. Then, a second epitaxial layer is formed over each of the first semiconductor layers in a narrow active region and the wide active region. Thereby, a second semiconductor layer configured by a laminated body of the first semiconductor layer and the first and second epitaxial layers is formed in the wide active region and a third semiconductor layer configured by a laminated body of the first semiconductor layer and the second epitaxial layer is formed in the narrow active region.

    Method of manufacturing semiconductor device

    公开(公告)号:US11562897B1

    公开(公告)日:2023-01-24

    申请号:US17369643

    申请日:2021-07-07

    Inventor: Hideki Makiyama

    Abstract: A wafer having a semiconductor substrate including a peripheral region and a central region, an insulating layer and a semiconductor layer is prepared first. Next, a plurality of trenches penetrating through the semiconductor layer and the insulating layer and reaching an inside of the semiconductor substrate are formed. Next, an inside of each of the plurality of trenches is filled with an insulating film, so that a plurality of element isolating portions is formed. Next, in the central region, the semiconductor layer exposed from a resist pattern is removed. The end portion closest to the outer edge of the semiconductor substrate among ends of the resist pattern used for removing the semiconductor layer in the central region is formed so as to be positioned closer to the outer edge of the semiconductor substrate than a position of the end portion closest to the outer edge of the semiconductor substrate among ends of the resist pattern used for forming the trenches.

    Semiconductor integrated circuit device
    10.
    发明授权
    Semiconductor integrated circuit device 有权
    半导体集成电路器件

    公开(公告)号:US09201440B2

    公开(公告)日:2015-12-01

    申请号:US14310731

    申请日:2014-06-20

    Abstract: A semiconductor integrated circuit device has, as a current monitor circuit, a circuit in which n-channel type MISFETs are connected in series with each other. Based on a delay time of a speed monitor circuit in a state where a substrate bias is being applied to the p-channel type MISFETs, a first voltage value of a first substrate bias to be applied to the p-channel type MISFETs is determined. Next, based on a current flowing through an n-channel type MISFET in a state where the first substrate bias is being applied to the p-channel type MISFETs of the current monitor circuit and a second substrate bias is being applied to the n-channel type MISFETs of the current monitor circuit, a second voltage value of the second substrate bias to be applied to the n-channel type MISFETs is determined.

    Abstract translation: 作为电流监视电路,半导体集成电路器件具有其中n沟道型MISFET彼此串联连接的电路。 基于将衬底偏压施加到p沟道型MISFET的状态下的速度监视器电路的延迟时间,确定要施加到p沟道型MISFET的第一衬底偏置的第一电压值。 接下来,基于在第一衬底偏压被施加到电流监视电路的p沟道型MISFET的状态下流过n沟道型MISFET的电流,并且第二衬底偏置被施加到n沟道 确定要施加到n沟道型MISFET的第二衬底偏置的第二电压值。

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