SIMULATION METHOD AND SYSTEM
    2.
    发明申请

    公开(公告)号:US20200342157A1

    公开(公告)日:2020-10-29

    申请号:US16794045

    申请日:2020-02-18

    Abstract: A simulation method and system which can determine a predictable epitaxy time by accurately reflecting layout characteristics of a chip and characteristics of a source/drain formation process are provided. The simulation method includes storing a plurality of structure parameters of transistors for a semiconductor chip, the structure parameters determined by using imaging equipment, generating a first local layout which includes a first structure parameter extracted from a semiconductor device included in the first local layout, the first structure parameter being an actual parameter determined using the imaging equipment, generating second to n-th local layouts by modifying the first structure parameter included in the first local layout, wherein the second to n-th local layouts respectively have second to n-th structure parameters modified from the first structure parameter, calculating first to n-th effective density factors(EDF) respectively for the first to n-th structure parameters using a predetermined simulation of the first to n-th structure parameters, determining a first effective open silicon density for a first chip using the first to n-th effective density factors and a layout of the first chip, and calculating a first epitaxy time for the first effective open silicon density, calculating second to m-th epitaxy times for second to m-th effective open silicon densities, and performing a regression analysis of effective open silicon density versus epitaxy time based on the calculation result, where n is a natural number equal to or greater than 3, and m is a natural number equal to or greater than 3.

    SEMICONDUCTOR DEVICE AND METHOD FOR FABRICATING THE SAME

    公开(公告)号:US20230056095A1

    公开(公告)日:2023-02-23

    申请号:US17734564

    申请日:2022-05-02

    Abstract: A semiconductor device includes a substrate including a first region and a second region, a first active pattern on the first region, a first gate structure having a first width in the first direction, on the first active pattern, a first epitaxial pattern disposed in the first active pattern on a side surface of the first gate structure, a second active pattern on the second region, a second gate structure having a second width greater than the first width in the first direction, on the second active pattern and a second epitaxial pattern disposed in the second active pattern on a side surface of the second gate structure. Each of the first epitaxial pattern and the second epitaxial pattern includes silicon germanium (SiGe), and a first Ge concentration of the first epitaxial pattern is lower than a second Ge concentration of the second epitaxial pattern.

    SEMICONDUCTOR DEVICE
    5.
    发明公开

    公开(公告)号:US20240332424A1

    公开(公告)日:2024-10-03

    申请号:US18740736

    申请日:2024-06-12

    CPC classification number: H01L29/7851 H01L27/0886 H01L29/0649 H01L29/41791

    Abstract: A semiconductor device including first fin-shaped patterns in a first region of a substrate and spaced apart from each other in a first direction, second fin-shaped patterns in a second region of the substrate and spaced apart from each other in a second direction, a first field insulating film on the substrate and covering sidewalls of the first fin-shaped patterns, a second field insulating film on the substrate and covering sidewalls of the second fin-shaped patterns, a first source/drain pattern on the first field insulating film, connected to the first fin-shaped patterns, and including a first silicon-germanium pattern, and a second source/drain pattern on the second field insulating film, connected to the second fin-shaped patterns, and including a second silicon-germanium pattern, the second source/drain pattern and the second field insulating film defining one or more first air gaps therebetween may be provided.

    SEMICONDUCTOR DEVICE
    6.
    发明申请

    公开(公告)号:US20230058991A1

    公开(公告)日:2023-02-23

    申请号:US17690178

    申请日:2022-03-09

    Abstract: A semiconductor device including first fin-shaped patterns in a first region of a substrate and spaced apart from each other in a first direction, second fin-shaped patterns in a second region of the substrate and spaced apart from each other in a second direction, a first field insulating film on the substrate and covering sidewalls of the first fin-shaped patterns, a second field insulating film on the substrate and covering sidewalls of the second fin-shaped patterns, a first source/drain pattern on the first field insulating film, connected to the first fin-shaped patterns, and including a first silicon-germanium pattern, and a second source/drain pattern on the second field insulating film, connected to the second fin-shaped patterns, and including a second silicon-germanium pattern, the second source/drain pattern and the second field insulating film defining one or more first air gaps therebetween may be provided.

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