NON-PLANAR SEMICONDUCTOR DEVICE HAVING OMEGA-FIN WITH DOPED SUB-FIN REGION AND METHOD TO FABRICATE SAME

    公开(公告)号:US20190296114A1

    公开(公告)日:2019-09-26

    申请号:US16435301

    申请日:2019-06-07

    Abstract: Non-planar semiconductor devices having omega-fins with doped sub-fin regions and methods of fabricating non-planar semiconductor devices having omega-fins with doped sub-fin regions are described. For example, a semiconductor device includes a plurality of semiconductor fins disposed above a semiconductor substrate, each semiconductor fin having a sub-fin portion below a protruding portion, the sub-fin portion narrower than the protruding portion. A solid state dopant source layer is disposed above the semiconductor substrate, conformal with the sub-fin region but not the protruding portion of each of the plurality of semiconductor fins. An isolation layer is disposed above the solid state dopant source layer and between the sub-fin regions of the plurality of semiconductor fins. A gate stack is disposed above the isolation layer and conformal with the protruding portions of each of the plurality of semiconductor fins.

    DIELECTRIC AND ISOLATION LOWER FIN MATERIAL FOR FIN-BASED ELECTRONICS

    公开(公告)号:US20190296105A1

    公开(公告)日:2019-09-26

    申请号:US16435250

    申请日:2019-06-07

    Abstract: A dielectric and isolation lower fin material is described that is useful for fin-based electronics. In some examples, a dielectric layer is on first and second sidewalls of a lower fin. The dielectric layer has a first upper end portion laterally adjacent to the first sidewall of the lower fin and a second upper end portion laterally adjacent to the second sidewall of the lower fin. An isolation material is laterally adjacent to the dielectric layer directly on the first and second sidewalls of the lower fin and a gate electrode is over a top of and laterally adjacent to sidewalls of an upper fin. The gate electrode is over the first and second upper end portions of the dielectric layer and the isolation material.

    DUAL FIN ENDCAP FOR SELF-ALIGNED GATE EDGE (SAGE) ARCHITECTURES

    公开(公告)号:US20190287972A1

    公开(公告)日:2019-09-19

    申请号:US16318316

    申请日:2016-09-30

    Abstract: Dual fin endcaps for self-aligned gate edge architectures, and methods of fabricating dual fin endcaps for self-aligned gate edge architectures, are described. In an example, a semiconductor structure includes an I/O device having a first plurality of semiconductor fins disposed above a substrate and protruding through an uppermost surface of a trench isolation layer. A logic device having a second plurality of semiconductor fins is disposed above the substrate and protrudes through the uppermost surface of the trench isolation layer. A gate edge isolation structure is disposed between the I/O device and the logic device. A semiconductor fin of the first plurality of semiconductor fins closest to the gate edge isolation structure is spaced farther from the gate edge isolation structure than a semiconductor fin of the second plurality of semiconductor fins closest to the gate edge isolation structure.

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