Semiconductor device including strained transistor and method for manufacturing the same

    公开(公告)号:US12132094B2

    公开(公告)日:2024-10-29

    申请号:US17313428

    申请日:2021-05-06

    摘要: A method for manufacturing a semiconductor device includes forming a first CPODE dummy poly gate and a second CPODE dummy poly gate on a semiconductor substrate; removing the first CPODE dummy poly gate and a portion of the semiconductor substrate therebelow to form a first trench extending into the semiconductor substrate; filling the first trench with a first dielectric material to form a first isolation structure to isolate the first and second transistors from each other; removing the second CPODE dummy poly gate and a portion of the semiconductor substrate therebelow to form a second trench extending into the semiconductor substrate; and filling the second trench with a second dielectric material having a dielectric composition different from that of the first dielectric material to form a second isolation structure to isolated the third and fourth transistors from each other.

    SEMICONDUCTOR DEVICE AND METHOD OF FABRICATING THE SAME

    公开(公告)号:US20220367451A1

    公开(公告)日:2022-11-17

    申请号:US17876536

    申请日:2022-07-29

    摘要: Provided is a semiconductor device including a substrate, an isolation structure, a gate dielectric layer, a high-k dielectric layer, and a protection cap. The substrate includes a first region, a second region, and a transition region located between the first region and the second region. The isolation structure, located in the transition region. The gate dielectric layer is located on the isolation structure. The high-k dielectric layer is located on the isolation structure and extended to cover a sidewall and a surface of the gate dielectric layer. The protection cap is located on a surface and sidewalls of the high-k dielectric layer.

    SEMICONDUCTOR DEVICE AND METHODS OF FORMING THE SAME

    公开(公告)号:US20220328472A1

    公开(公告)日:2022-10-13

    申请号:US17844078

    申请日:2022-06-20

    摘要: A semiconductor device includes a substrate having a first region and a second region, a first gate structure disposed on the substrate within the first region, a first S/D region, a first S/D contact, a second gate structure on the substrate within the second region, a second S/D region and a second S/D contact. The first S/D region is disposed in the substrate within the first region and beside the first gate structure. The first S/D contact is connected to the first S/D region. The second S/D region is disposed in the substrate within the second region and beside the second gate structure. The second S/D contact is connected to the second S/D region. The contact area between the second S/D region and the second S/D contact is larger than a contact area between the first S/D region and the first S/D contact.