Semiconductor memory device
    22.
    发明授权

    公开(公告)号:US11342330B2

    公开(公告)日:2022-05-24

    申请号:US17172124

    申请日:2021-02-10

    Abstract: A semiconductor memory device is provided. The device may include a lower gate line provided on a substrate and extended in a first direction, an upper gate line vertically overlapped with the lower gate line and extended in the first direction, a first capacitor provided between the lower gate line and the upper gate line, a second capacitor provided between the lower gate line and the upper gate line and spaced apart from the first capacitor in the first direction, a lower semiconductor pattern provided to penetrate the lower gate line and connected to the first capacitor, an upper semiconductor pattern provided to penetrate the upper gate line and connected to the second capacitor, and a lower insulating pattern provided between the second capacitor and the lower gate line to cover the entire region of a bottom surface of the second capacitor.

    Method of manufacturing a semiconductor device using the same

    公开(公告)号:US10776549B2

    公开(公告)日:2020-09-15

    申请号:US16266143

    申请日:2019-02-04

    Abstract: A method for manufacturing a semiconductor device with an improved doping profile is provided. The method includes providing a measuring target including a first region having a plurality of layers, inputting a first input signal into the measuring target and measuring a resulting first output signal, such as a change over time of a first output electric field that is transmitted through or reflected by the first region. Based on a first model including first structural information of a plurality of first modeling layers and information on doping concentrations of each of the plurality of first modeling layers, calculating a second output signal. When a result of comparing the first output signal with the second output signal is smaller than a threshold value, a three-dimensional model of the measuring target may be estimated based on the first model. Such non-destructive measurements may be used to determine manufacturing process parameters corresponding to ideal doping profiles and used to manufacture semiconductor devices implementing such manufacturing process parameters.

Patent Agency Ranking