Semiconductor device and manufacturing method thereof

    公开(公告)号:US11948982B2

    公开(公告)日:2024-04-02

    申请号:US17456572

    申请日:2021-11-24

    发明人: Wan Yu Kai

    摘要: A manufacturing method of a semiconductor device includes forming a contact opening in a wafer. The wafer includes a substrate, a gate structure over the substrate and a dielectric layer over the substrate and surrounding the gate structure, and the contact opening passes through the dielectric layer and exposes the substrate. A recess is formed in the substrate such that the recess is connected to the contact opening. An oxidation process is performed to convert a portion of the substrate exposed in the recess to form a protection layer lining a sidewall and a bottom surface of the recess. The protection layer is etched back to remove a first portion of the protection layer in contact with the bottom surface of the recess of the substrate. A metal alloy structure is formed at the bottom surface of the recess of the substrate.

    SEMICONDUCTOR DEVICE WITH CONTACT STRUCTURE AND METHOD FOR FABRICATING THE SAME

    公开(公告)号:US20240105807A1

    公开(公告)日:2024-03-28

    申请号:US18369962

    申请日:2023-09-19

    发明人: TSE-YAO HUANG

    IPC分类号: H01L29/45 H01L29/40

    CPC分类号: H01L29/45 H01L29/401

    摘要: The present application discloses a contact structure, a semiconductor device, and a method for fabricating the semiconductor device. The semiconductor device includes a substrate; an impurity region positioned in the substrate; an intervening conductive layer positioned on the impurity region; a bottom conductive layer positioned on the bottom conductive layer; a conductive capping layer positioned on the bottom conductive layer; a top conductive layer positioned on the conductive capping layer. The intervening conductive layer, the bottom conductive layer, the conductive capping layer, and the top conductive layer configure a contact structure. The bottom conductive layer includes germanium or silicon germanium. The bottom conductive layer includes n-type dopants or p-type dopants.

    Semiconductor device
    65.
    发明授权

    公开(公告)号:US11942514B2

    公开(公告)日:2024-03-26

    申请号:US18118821

    申请日:2023-03-08

    发明人: Tse-Yao Huang

    IPC分类号: H01L29/06 H01L25/00 H01L25/07

    摘要: The present application discloses a semiconductor device including a substrate; a first semiconductor stack having a first threshold voltage and comprising a first insulating stack positioned on the substrate; a second semiconductor stack having a second threshold voltage and comprising a second insulating stack positioned on the substrate; and wherein the first threshold voltage is different the second threshold voltage; a thickness of the first insulating stack is different from a thickness of the second insulating stack.

    Method for preparing semiconductor device structure with isolation patterns having different heights

    公开(公告)号:US11942331B2

    公开(公告)日:2024-03-26

    申请号:US17550321

    申请日:2021-12-14

    IPC分类号: H01L21/311

    CPC分类号: H01L21/31144 H01L21/31116

    摘要: A method for preparing a semiconductor device structure is provided. The method includes forming a target layer over a semiconductor substrate; forming an energy-sensitive layer over the target layer; performing a first energy treating process to form a plurality of first treated portions in the energy-sensitive layer; performing a second energy treating process to form a plurality of second treated portions in the energy-sensitive layer; removing the first treated portions and the second treated portions to respectively form a plurality of first openings and a plurality of second openings; transferring the first openings and the second openings into the target layer to respectively form a plurality of third openings and a plurality of fourth openings; and transferring the third openings and the fourth openings into the semiconductor substrate to respectively form a plurality of fifth openings and a plurality of sixth openings.

    SEMICONDUCTOR DEVICE WITH CONDUCTIVE CAP LAYER OVER CONDUCTIVE PLUG AND METHOD FOR FORMING THE SAME

    公开(公告)号:US20240090204A1

    公开(公告)日:2024-03-14

    申请号:US18509601

    申请日:2023-11-15

    发明人: HUNG-CHI TSAI

    IPC分类号: H10B12/00

    摘要: The present disclosure relates to a semiconductor device including a semiconductor substrate, word lines, mask layers, spacers, a conductive plug, a conductive cap layer, and a dielectric layer. The word lines are disposed over the semiconductor substrate. The mask layers are disposed over the plurality of word line, respectively. The spacers are disposed over opposite sidewalls of the word lines and opposite sidewalls of the mask layers, respectively. The conductive plug is disposed between the word lines. The conductive cap layer is disposed over the conductive plug. The dielectric layer is disposed over the word lines and the spacers. Each of the spacers includes an inner spacer, an outer spacer, and an air gap. The inner spacer is in contact with the respective word line and the respective mask layer. The air gap is disposed between the inner spacer and the outer spacer.

    SEMICONDUCTOR DEVICE HAVING GATE STRUCTURE AND METHOD FOR MANUFACTURING THE SAME

    公开(公告)号:US20240090195A1

    公开(公告)日:2024-03-14

    申请号:US18368678

    申请日:2023-09-15

    发明人: CHUNG-PENG HAO

    IPC分类号: H10B12/00

    摘要: A semiconductor device and a method of manufacturing a semiconductor device are provided. The semiconductor device includes a first bit-line extending in a first direction and a first word-line extending in a second direction substantially perpendicular to the first direction. The semiconductor device also includes a first channel. The first bit-line and the first word-line are electrically coupled to the first channel. The semiconductor device also includes a first gate line disposed between the first bit-line and the first word-line. The first gate line is electrically coupled to the first channel and configured to close the first channel once the first bit-line and the first word-line are shorted together through the first channel.