Semiconductor device and manufacturing method thereof

    公开(公告)号:US12114496B2

    公开(公告)日:2024-10-08

    申请号:US18225561

    申请日:2023-07-24

    CPC classification number: H10B41/27 H01L21/0337 H01L29/0649 H10B43/27

    Abstract: In a method of manufacturing a semiconductor device, a memory cell structure covered by a protective layer is formed in a memory cell area of a substrate. A mask pattern is formed. The mask pattern has an opening over a first circuit area, while the memory cell area and a second circuit area are covered by the mask pattern. The substrate in the first circuit area is recessed, while the memory cell area and the second circuit area are protected. A first field effect transistor (FET) having a first gate dielectric layer is formed in the first circuit area over the recessed substrate and a second FET having a second gate dielectric layer is formed in the second circuit area over the substrate as viewed in cross section.

    SEMICONDUCTOR DEVICE AND METHOD OF FABRICATING THE SAME

    公开(公告)号:US20210335782A1

    公开(公告)日:2021-10-28

    申请号:US16859992

    申请日:2020-04-27

    Abstract: 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 MANUFACTURING METHOD THEREOF

    公开(公告)号:US20230371251A1

    公开(公告)日:2023-11-16

    申请号:US18225561

    申请日:2023-07-24

    CPC classification number: H10B41/27 H01L21/0337 H01L29/0649 H10B43/27

    Abstract: In a method of manufacturing a semiconductor device, a memory cell structure covered by a protective layer is formed in a memory cell area of a substrate. A mask pattern is formed. The mask pattern has an opening over a first circuit area, while the memory cell area and a second circuit area are covered by the mask pattern. The substrate in the first circuit area is recessed, while the memory cell area and the second circuit area are protected. A first field effect transistor (FET) having a first gate dielectric layer is formed in the first circuit area over the recessed substrate and a second FET having a second gate dielectric layer is formed in the second circuit area over the substrate as viewed in cross section.

    Semiconductor device and manufacturing method thereof

    公开(公告)号:US11778815B2

    公开(公告)日:2023-10-03

    申请号:US17833834

    申请日:2022-06-06

    CPC classification number: H10B41/27 H01L21/0337 H01L29/0649 H10B43/27

    Abstract: In a method of manufacturing a semiconductor device, a memory cell structure covered by a protective layer is formed in a memory cell area of a substrate. A mask pattern is formed. The mask pattern has an opening over a first circuit area, while the memory cell area and a second circuit area are covered by the mask pattern. The substrate in the first circuit area is recessed, while the memory cell area and the second circuit area are protected. A first field effect transistor (FET) having a first gate dielectric layer is formed in the first circuit area over the recessed substrate and a second FET having a second gate dielectric layer is formed in the second circuit area over the substrate as viewed in cross section.

    Semiconductor device and manufacturing method thereof

    公开(公告)号:US11355507B2

    公开(公告)日:2022-06-07

    申请号:US16887749

    申请日:2020-05-29

    Abstract: In a method of manufacturing a semiconductor device, a memory cell structure covered by a protective layer is formed in a memory cell area of a substrate. A mask pattern is formed. The mask pattern has an opening over a first circuit area, while the memory cell area and a second circuit area are covered by the mask pattern. The substrate in the first circuit area is recessed, while the memory cell area and the second circuit area are protected. A first field effect transistor (FET) having a first gate dielectric layer is formed in the first circuit area over the recessed substrate and a second FET having a second gate dielectric layer is formed in the second circuit area over the substrate as viewed in cross section.

    SEMICONDUCTOR DEVICE AND METHODS OF FORMING THE SAME

    公开(公告)号:US20210343704A1

    公开(公告)日:2021-11-04

    申请号:US16861215

    申请日:2020-04-29

    Abstract: 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.

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