Semiconductor layout in FinFET technologies

    公开(公告)号:US10740527B2

    公开(公告)日:2020-08-11

    申请号:US15697239

    申请日:2017-09-06

    Applicant: Apple Inc.

    Abstract: Systems, apparatuses, and methods for placing cells in an integrated circuit are described. In various embodiments, an integrated circuit is divided into many partitions. In a first set of partitions susceptible to transistor latch-up, the many transistor gate stripes are connected to one of the power rails rather than left floating. The lengths of the transistor gate stripes are shortened for well tap cells in the first partition, but increased in a second partition susceptible for poor signal integrity. One or more implant layers are formed underneath the transistor gate stripes in each of the first and second partitions to adjust an amount of protection against transistor latch-up and poor signal integrity. An electrostatic discharge transistor is included with at least one source region of multiple source regions formed in a well with a same doping polarity as the at least one source region.

    Leakage Current Reduction in Electrical Isolation Gate Structures

    公开(公告)号:US20200328205A1

    公开(公告)日:2020-10-15

    申请号:US16913770

    申请日:2020-06-26

    Applicant: Apple Inc.

    Abstract: In an embodiment, an integrated circuit includes transistors in different active regions, electrically isolated using single diffusion break isolation. The single diffusion break isolation includes a first dummy transistor that has a different threshold voltage than the transistors in either active region for which the single diffusion break is creating isolation. The first dummy transistor may have lower leakage current than transistors in either active region, creating effective isolation between the active regions and consuming relatively small amounts of power due to the lower leakage currents.

    SEMICONDUCTOR LAYOUT IN FINFET TECHNOLOGIES
    7.
    发明公开

    公开(公告)号:US20230409797A1

    公开(公告)日:2023-12-21

    申请号:US18337781

    申请日:2023-06-20

    Applicant: Apple Inc.

    Abstract: Systems, apparatuses, and methods for placing cells in an integrated circuit are described. In various embodiments, an integrated circuit is divided into many partitions. In a first set of partitions susceptible to transistor latch-up, the many transistor gate stripes are connected to one of the power rails rather than left floating. The lengths of the transistor gate stripes are shortened for well tap cells in the first partition, but increased in a second partition susceptible for poor signal integrity. One or more implant layers are formed underneath the transistor gate stripes in each of the first and second partitions to adjust an amount of protection against transistor latch-up and poor signal integrity. An electrostatic discharge transistor is included with at least one source region of multiple source regions formed in a well with a same doping polarity as the at least one source region.

    Leakage Current Reduction in Electrical Isolation Gate Structures

    公开(公告)号:US20200118999A1

    公开(公告)日:2020-04-16

    申请号:US16156461

    申请日:2018-10-10

    Applicant: Apple Inc.

    Abstract: In an embodiment, an integrated circuit includes transistors in different active regions, electrically isolated using single diffusion break isolation. The single diffusion break isolation includes a first dummy transistor that has a different threshold voltage than the transistors in either active region for which the single diffusion break is creating isolation. The first dummy transistor may have lower leakage current than transistors in either active region, creating effective isolation between the active regions and consuming relatively small amounts of power due to the lower leakage currents.

    SEMICONDUCTOR LAYOUT IN FINFET TECHNOLOGIES
    10.
    发明申请

    公开(公告)号:US20190073440A1

    公开(公告)日:2019-03-07

    申请号:US15697239

    申请日:2017-09-06

    Applicant: Apple Inc.

    Abstract: Systems, apparatuses, and methods for placing cells in an integrated circuit are described. In various embodiments, an integrated circuit is divided into many partitions. In a first set of partitions susceptible to transistor latch-up, the many transistor gate stripes are connected to one of the power rails rather than left floating. The lengths of the transistor gate stripes are shortened for well tap cells in the first partition, but increased in a second partition susceptible for poor signal integrity. One or more implant layers are formed underneath the transistor gate stripes in each of the first and second partitions to adjust an amount of protection against transistor latch-up and poor signal integrity. An electrostatic discharge transistor is included with at least one source region of multiple source regions formed in a well with a same doping polarity as the at least one source region.

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