Group III-nitride (III-N) devices with reduced contact resistance and their methods of fabrication

    公开(公告)号:US11233053B2

    公开(公告)日:2022-01-25

    申请号:US16643827

    申请日:2017-09-29

    申请人: INTEL CORPORATION

    摘要: A device including a III-N material is described. In an example, the device has a terminal structure with a central body and a first plurality of fins, and a second plurality of fins, opposite the first plurality of fins. A polarization charge inducing layer including a III-N material in the terminal structure. A gate electrode is disposed above and on a portion of the polarization charge inducing layer. A source structure is on the polarization charge inducing layer and on sidewalls of the first plurality of fins. A drain structure is on the polarization charge inducing layer and on sidewalls of the second plurality of fins. The device further includes a source structure and a drain structure on opposite sides of the gate electrode and a source contact on the source structure and a drain contact on the drain structure.

    Device terminal interconnect structures

    公开(公告)号:US11227829B2

    公开(公告)日:2022-01-18

    申请号:US15940531

    申请日:2018-03-29

    申请人: Intel Corporation

    摘要: Integrated circuit structures including device terminal interconnect pillar structures, and fabrication techniques to form such structures. Following embodiments herein, a small transistor terminal interconnect footprint may be achieved by patterning recesses in a gate interconnect material and/or a source or drain interconnect material. A dielectric deposited over the gate interconnect material and/or source or drain interconnect material may be planarized to expose portions of the gate interconnect material and/or drain interconnect material that were protected from the recess patterning. An upper level interconnect structure, such as a conductive line or via, may contact the exposed portion of the gate and/or source or drain interconnect material.

    Vertical field effect transistors (VFETs) with self-aligned wordlines

    公开(公告)号:US11171233B2

    公开(公告)日:2021-11-09

    申请号:US16490502

    申请日:2017-03-31

    申请人: Intel Corporation

    IPC分类号: H01L29/78 H01L29/51 H01L29/66

    摘要: Disclosed are systems, methods, and apparatus directed to the fabrication of vertical field effect transistors (VFETs) and VFETs with self-aligned wordlines. In one embodiment, the source and/or drain of the VFETs can include n-doped silicon. In one embodiment, the VFETs can include a channel that can be made of intrinsic silicon. In one embodiment, the source, drain, and/or channel can be deposited using physical vapor deposition (PVD), chemical vapor deposition (CVD), molecular beam chemical vapor deposition (MOCVD), and/or atomic layer deposition (ALD), and the like. In one embodiment, an STI process can be used to fabricate one or more recesses, which can reach the drains of the VFETs. In one embodiment, the systems, methods, and apparatus can permit the self-alignment of one or more wordlines of the VFETs with the one or more fins, and/or gate metals and gate materials of the VFETs.

    Plug and trench architectures for integrated circuits and methods of manufacture

    公开(公告)号:US11171043B2

    公开(公告)日:2021-11-09

    申请号:US16329172

    申请日:2016-09-30

    申请人: Intel Corporation

    摘要: Methods and architectures for IC interconnect trenches, and trench plugs that define separations between two adjacent trench ends. Plugs and trenches may be defined through a multiple patterning process. An upper grating pattern may be summed with a plug keep pattern into a pattern accumulation layer. The pattern accumulation layer may be employed to define plug masks. A lower grating pattern may then be summed with the plug masks to define a pattern in trench ILD material, which can then be backfilled with interconnect metallization. As such, a complex damascene interconnect structure can be fabricated at the scaled-down geometries achievable with pitch-splitting techniques. In some embodiments, the trenches are located at spaces between first spacer masks defined in a patterning process associated with the first grating pattern while the plug masks are located based on a tone-inversion of second spacer masks associated with the second grating pattern.

    Integrated nanowire and nanoribbon patterning in transistor manufacture

    公开(公告)号:US11164790B2

    公开(公告)日:2021-11-02

    申请号:US16632319

    申请日:2017-08-17

    申请人: Intel Corporation

    摘要: Fabrication of narrow and wide structures based on lithographic patterning of exclusively narrow mask structures. Multi-patterning may be employed to define narrow mask structures. Wide mask structures may be derived through a process-based merging of multiple narrow mask structures. The merge may include depositing a cap layer over narrow structures, filling in minimum spaces. The cap layer may be removed leaving residual cap material only within minimum spaces. Narrow and wide structures may be etched into an underlayer based on a summation of the narrow mask structures and residual cap material. A plug pattern may further mask portions of the cap layer not completely filling space between adjacent mask structures. The underlayer may then be etched based on a summation of the narrow mask structures, plug pattern, and residual cap material. Such methods may be utilized to integrate nanoribbon transistors with nanowire transistors in an integrated circuit (IC).

    Micro-surface morphological matching for reactor components

    公开(公告)号:US11139151B1

    公开(公告)日:2021-10-05

    申请号:US15922762

    申请日:2018-03-15

    申请人: Intel Corporation

    摘要: A method is disclosed, which comprises estimating a first value of a parameter of a component, prior to a use of the component in a reactor. In an example, the parameter of the component is to change during the use of the component in the reactor. The component may be treated, subsequent to the use of the component in the reactor. A second value of the parameter of the component may be estimated, subsequent to treating the component. The second value may be compared with the first value, where a reuse of the component in the reactor is to occur in response to the second value being within a threshold range of the first value.