Integrated circuit with laminated magnetic core inductor and magnetic flux closure layer

    公开(公告)号:US11058001B2

    公开(公告)日:2021-07-06

    申请号:US16007631

    申请日:2018-06-13

    申请人: Ferric Inc.

    摘要: A structure comprises a semiconductor integrated circuit, an inductor, and a magnetic flux closure layer. The inductor is integrated into a multilevel wiring network in the semiconductor integrated circuit. The inductor includes a planar laminated magnetic core and a conductive winding that turns around in a generally spiral manner on the outside of the planar laminated magnetic core. The planar laminated magnetic core includes an alternating sequence of a magnetic layer and a non-magnetic layer. The magnetic flux closure layer is disposed within about 100 μm of a face of the planar laminated magnetic core, the face of the planar magnetic core parallel to a principal plane of the planar laminated magnetic core. A second magnetic flux closure layer can be disposed within about 100 μm of an opposing face of the planar laminated magnetic core.

    Electromagnetically-Driven Ferromagnetic Actuator Device

    公开(公告)号:US20200152364A1

    公开(公告)日:2020-05-14

    申请号:US16184024

    申请日:2018-11-08

    申请人: Ferric Inc.

    摘要: A ferromagnetic actuator is disposed between first and second semiconductor devices that include first and second inductors. Each inductor is disposed on top of a multilevel wiring structure. Current flows through the first inductor to generate a first magnetic field that attracts the ferromagnetic actuator towards the first inductor causing the ferromagnetic actuator to transition from a first state to a second state. In the second state, a portion of the ferromagnetic actuator is disposed closer to the first inductor than it is in the first state. Current flows through the second inductor to generate a second magnetic field that attracts the ferromagnetic actuator towards the second inductor causing the ferromagnetic actuator to transition from the first or second state to a third state. In the third state, a portion of the ferromagnetic actuator is disposed closer to the first inductor than it is in the first state.

    Integrated Switched Inductor Power Converter Having First and Second Powertrain Phases

    公开(公告)号:US20190182957A1

    公开(公告)日:2019-06-13

    申请号:US16279574

    申请日:2019-02-19

    申请人: Ferric Inc.

    摘要: A switched inductor DC-DC power converter chiplet includes a CMOS power switch, an LC filter, regulation circuitry, feedback control circuitry, and interface control circuitry integrated on a common substrate. The inductor for the LC filter can be formed on the same surface or on opposing surfaces of the substrate as the electrical terminations for the substrate. Another embodiment includes a switched inductor DC-DC power converter chiplet having a first powertrain phase and multiple second powertrain phases. When the load current is less than or equal to a threshold load current, the power conversion efficiency can be improved by only operating the first powertrain phase. When the load current is greater than the threshold load current, the power conversion efficiency can be improved by operating one or more second powertrain phases.

    Systems and Methods for Integrated Multi-Layer Magnetic Films
    9.
    发明申请
    Systems and Methods for Integrated Multi-Layer Magnetic Films 有权
    集成多层磁膜的系统和方法

    公开(公告)号:US20150171157A1

    公开(公告)日:2015-06-18

    申请号:US14571649

    申请日:2014-12-16

    申请人: Ferric Inc.

    IPC分类号: H01L49/02 H01L23/50

    摘要: Integrated multi-layer magnetic films for use in passive devices in microelectronic applications and methods of manufacture thereof. Soft ferromagnetic materials exhibiting high permeability and low coercivity are laminated together with insulating layers interposed. Electrical conductors coupled to interconnects are magnetically coupled to magnetic film layers to engender an inductor (self and mutual). Soft ferromagnetic materials are provided in an alternating array of parallel plate capacitors. Each alternating magnetic film is electrically coupled to either a primary or secondary electrical conductor interconnects and separated by an electrically insulating dielectric material. Alternatively, each alternating magnetic layer comprises an induced anisotropy material, which can also be combined with coiled conductor giving rise to a hybrid inductive/capacitive device. Also, soft ferromagnetic material are also selected and tuned to provide for FMR notch filtering.

    摘要翻译: 用于微电子应用中的无源器件的集成多层磁性膜及其制造方法。 表现出高磁导率和低矫顽力的软铁磁材料层压在绝缘层上。 耦合到互连的电导体磁耦合到磁膜层以产生电感器(自相互)。 柔性铁磁材料以平行板电容器的交替阵列提供。 每个交替磁性膜电耦合到主电导体互连件或次电导体互连件,并由电绝缘电介质材料隔开。 或者,每个交变磁性层包括感应各向异性材料,其也可以与产生混合电感/电容器件的线圈导体组合。 此外,软铁磁材料也被选择和调谐以提供FMR陷波滤波。