SEMICONDUCTOR STRUCTURE WITH AN EPITAXIAL LAYER

    公开(公告)号:US20210242018A1

    公开(公告)日:2021-08-05

    申请号:US17218112

    申请日:2021-03-30

    Abstract: The present invention discloses a semiconductor structure with an epitaxial layer, including a substrate, a blocking layer on said substrate, wherein said blocking layer is provided with predetermined recess patterns, multiple recesses formed in said substrate, wherein each of said multiple recesses is in 3D diamond shape with a centerline perpendicular to a surface of said substrate, a buffer layer on a surface of each of said multiple recesses, and an epitaxial layer comprising a buried portion formed on said buffer layer in each of said multiple recesses and only one above-surface portion formed directly above said blocking layer and directly above said recess patterns of said blocking layer, and said above-surface portion directly connects said buried portion in each of said multiple recesses, and a first void is formed inside each of said buried portions of said epitaxial layer in said recess.

    Manufacturing method of semiconductor structure
    7.
    发明授权
    Manufacturing method of semiconductor structure 有权
    半导体结构的制造方法

    公开(公告)号:US09583394B2

    公开(公告)日:2017-02-28

    申请号:US15293292

    申请日:2016-10-14

    Abstract: The present invention provides a method for forming a semiconductor structure, comprising: firstly, a substrate is provided, having a first fin structure and a second fin structure disposed thereon, next, a first isolation region is formed between the first fin structure and the second fin structure, a second isolation region is formed opposite the first fin structure from the first isolation region, and at least an epitaxial layer is formed on the side of the first fin structure and the second fin structure, wherein the epitaxial layer has a bottom surface, the bottom surface extending from the first fin structure to the second fin structure, and the bottom surface is lower than a bottom surface of the first isolation region and a top surface of the second isolation region, in addition, the epitaxial layer has a stepped-shaped sidewall profile.

    Abstract translation: 本发明提供一种半导体结构的形成方法,其特征在于,首先,设置具有第一鳍结构和设置在其上的第二鳍结构的衬底,接着,在所述第一鳍结构和所述第二鳍结构之间形成第一隔离区 鳍结构,与第一隔离区相对地形成第二隔离区,并且在第一鳍结构和第二鳍结构的一侧形成至少外延层,其中外延层具有底表面 所述底表面从所述第一鳍结构延伸到所述第二鳍结构,并且所述底表面低于所述第一隔离区域的底表面和所述第二隔离区域的顶表面,此外,所述外延层具有阶梯状 形侧壁轮廓。

    Surface acoustic wave device and method for fabricating the same

    公开(公告)号:US12289088B2

    公开(公告)日:2025-04-29

    申请号:US17393407

    申请日:2021-08-04

    Abstract: A method for fabricating a surface acoustic wave (SAW) device includes the steps of forming a buffer layer on a substrate, forming a high velocity layer on the buffer layer, forming a medium velocity layer on the high velocity layer, forming a low velocity layer on the medium velocity layer, forming a piezoelectric layer on the low velocity layer, and forming an electrode on the piezoelectric layer. Preferably, the buffer layer includes silicon oxide, the high velocity layer includes graphene, the medium velocity layer includes silicon oxynitride, and the low velocity layer includes titanium oxide.

    SEMICONDUCTOR DEVICE AND METHOD FOR FABRICATING THE SAME

    公开(公告)号:US20230066509A1

    公开(公告)日:2023-03-02

    申请号:US17491509

    申请日:2021-09-30

    Abstract: A method for fabricating a semiconductor device includes the steps of forming a metal-oxide semiconductor (MOS) transistor on a substrate, forming an interlayer dielectric (ILD) layer on the MOS transistor, forming a ferroelectric field effect transistor (FeFET) on the ILD layer, and forming a ferroelectric random access memory (FeRAM) on the ILD layer. The formation of the FeFET further includes first forming a semiconductor layer on the ILD layer, forming a gate structure on the semiconductor layer, and then forming a source/drain region adjacent to the gate structure.

    SURFACE ACOUSTIC WAVE DEVICE AND METHOD FOR FABRICATING THE SAME

    公开(公告)号:US20230009982A1

    公开(公告)日:2023-01-12

    申请号:US17393407

    申请日:2021-08-04

    Abstract: A method for fabricating a surface acoustic wave (SAW) device includes the steps of forming a buffer layer on a substrate, forming a high velocity layer on the buffer layer, forming a medium velocity layer on the high velocity layer, forming a low velocity layer on the medium velocity layer, forming a piezoelectric layer on the low velocity layer, and forming an electrode on the piezoelectric layer. Preferably, the buffer layer includes silicon oxide, the high velocity layer includes graphene, the medium velocity layer includes silicon oxynitride, and the low velocity layer includes titanium oxide.

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