TARGETED SUB-FIN ETCH DEPTH
    13.
    发明公开

    公开(公告)号:US20240088134A1

    公开(公告)日:2024-03-14

    申请号:US17943815

    申请日:2022-09-13

    CPC classification number: H01L27/0266 H01L21/823418 H01L21/823481

    Abstract: An integrated circuit structure includes laterally adjacent first and second devices. The first device has (i) a first diffusion region, (ii) a first body including semiconductor material extending laterally from the first diffusion region, and (iii) a first gate structure on the first body. The first diffusion region has a first lower section that extends below a lower surface of the first gate structure, the first lower section having a first height. The second device has (i) a second diffusion region, (ii) a second body including semiconductor material extending laterally from the second diffusion region, and (iii) a second gate structure on the second body. The second diffusion region has a second lower section that extends below a lower surface of the second gate structure, the second lower section having a second height. In an example, the first height is at least 2 nanometers greater than the second height.

    TRANSISTOR DEVICES WITH INTEGRATED DIODES
    14.
    发明公开

    公开(公告)号:US20240088133A1

    公开(公告)日:2024-03-14

    申请号:US17943840

    申请日:2022-09-13

    Abstract: An integrated circuit structure includes a sub-fin having a first type of dopant, a first diffusion region having the first type of dopant and in contact with the sub-fin, and a second diffusion region and a third diffusion region having a second type of dopant and in contact with the sub-fin. The first type of dopant is one of p-type or n-type dopant, and where the second type of dopant is the other of the p-type or n-type dopant. A first body of semiconductor material extends from the second diffusion region to the third diffusion region, and a second body of semiconductor material extends from the first diffusion region towards the second diffusion region. The first diffusion region is a tap diffusion region contacting the sub-fin. In an example, the first diffusion region facilitates formation of a diode for electrostatic discharge (ESD) protection of the integrated circuit structure.

    DIODES WITH BACKSIDE CONTACT
    16.
    发明公开

    公开(公告)号:US20240088131A1

    公开(公告)日:2024-03-14

    申请号:US17943812

    申请日:2022-09-13

    CPC classification number: H01L27/0255 H01L27/0266 H01L29/0673 H01L29/8611

    Abstract: An integrated circuit structure includes a sub-fin having at least a portion that is doped with a first type of dopant, and a diffusion region doped with a second type of dopant. The diffusion region is in contact with the sub-fin and extends upward from the sub-fin. The first type of dopant is one of a p-type or an n-type dopant, and the second type of dopant is the other of the p-type or the n-type dopant. In an example, a first conductive contact is above and on the diffusion region, and a second conductive contact is in contact with the portion of the sub-fin. In an example, the diffusion region is at least a part of one of an anode or a cathode of a diode, and the portion of the sub-fin is at least a part of the other of the anode or the cathode of the diode.

    Integrated circuit structures including backside vias

    公开(公告)号:US11791331B2

    公开(公告)日:2023-10-17

    申请号:US17526199

    申请日:2021-11-15

    CPC classification number: H01L27/0292 H01L27/0255 H01L27/0288

    Abstract: Disclosed herein are integrated circuit (IC) structures including backside vias, as well as related methods and devices. In some embodiments, an IC structure may include: a device layer, wherein the device layer includes a plurality of active devices; a first metallization layer over the device layer, wherein the first metallization layer includes a first conductive pathway in conductive contact with at least one of the active devices in the device layer; a second metallization layer under the device layer, wherein the second metallization layer includes a second conductive pathway; and a conductive via in the device layer, wherein the conductive via is in conductive contact with at least one of the active devices in the device layer and also in conductive contact with the second conductive pathway.

    LATERAL DIODES IN STACKED TRANSISTOR TECHNOLOGIES

    公开(公告)号:US20230088578A1

    公开(公告)日:2023-03-23

    申请号:US17448385

    申请日:2021-09-22

    Abstract: Integrated circuits including lateral diodes. In an example, diodes are formed with laterally neighboring source and drain regions (diffusion regions) configured with different polarity epitaxial growths (e.g., p-type and n-type), to provide an anode and cathode of the diode. In some such cases, dopants may be used in the channel region to create or otherwise enhance a PN or PIN junction between the diffusion regions and the semiconductor material of a channel region. The channel region can be, for instance, one or more nanoribbons or other such semiconductor bodies that extend between the oppositely-doped diffusion regions. In some cases, nanoribbons making up the channel region are left unreleased, thereby preserving greater volume through which diode current can flow. Other features include skipped epitaxial regions, elongated gate structures, using isolation structures in place of gate structures, and/or sub-fin conduction paths that are supplemental or alternative to a channel-based conduction paths.

    LATERAL DIODES IN STACKED TRANSISTOR TECHNOLOGIES

    公开(公告)号:US20230087444A1

    公开(公告)日:2023-03-23

    申请号:US17448384

    申请日:2021-09-22

    Abstract: Integrated circuits including lateral diodes. In an example, diodes are formed with laterally neighboring source and drain regions (diffusion regions) configured with different polarity epitaxial growths (e.g., p-type and n-type), to provide an anode and cathode of the diode. In some such cases, dopants may be used in the channel region to create or otherwise enhance a PN or PIN junction between the diffusion regions and the semiconductor material of a channel region. The channel region can be, for instance, one or more nanoribbons or other such semiconductor bodies that extend between the oppositely-doped diffusion regions. In some cases, nanoribbons making up the channel region are left unreleased, thereby preserving greater volume through which diode current can flow. Other features include skipped epitaxial regions, elongated gate structures, using isolation structures in place of gate structures, and/or sub-fin conduction paths that are supplemental or alternative to a channel-based conduction path.

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