INTEGRATED CIRCUIT DEVICES INCLUDING METALLIC SOURCE/DRAIN REGIONS

    公开(公告)号:US20230420459A1

    公开(公告)日:2023-12-28

    申请号:US18056181

    申请日:2022-11-16

    摘要: Integrated circuit devices and methods of forming the same are provided. The integrated circuit devices may include a substrate and a transistor stack on the substrate. The transistor stack comprises a first transistor and a second transistor stacked in a first direction. The first transistor comprises first and second source/drain regions and a first channel region between the first and second source/drain regions, and the first source/drain region comprises a first metal layer. The second transistor comprises third and fourth source/drain regions and a second channel region between the third and fourth source/drain regions, and the first and third source/drain regions overlap each other in the first direction. The transistor stack further comprises a metal interconnector contacting the third source/drain region and the first metal layer of the first source/drain region material.

    LIMITED LATERAL GROWTH OF S/D EPI BY OUTER DIELECTRIC LAYER IN 3-DIMENSIONAL STACKED DEVICE

    公开(公告)号:US20230335549A1

    公开(公告)日:2023-10-19

    申请号:US17866343

    申请日:2022-07-15

    摘要: An integrated circuit includes a first semiconductor device and a second semiconductor device adjacent to the first semiconductor device. Each of the first and second semiconductor devices includes a lower transistor and an upper transistor on the lower transistor, and the upper and lower transistors each include a source region, a drain region, and a channel region extending between the source region and the drain region. The integrated circuit also includes a first dielectric spacer extending along an inner sidewall of the channel region of the upper and/or lower transistor of the first semiconductor device, a second dielectric spacer facing the first dielectric spacer and extending along an inner sidewall of the channel region of the upper and/or lower transistor of the second semiconductor device. The integrated circuit also includes an interconnect contact between the first semiconductor device and the second semiconductor device.