Semiconductor device with metal die attach to substrate with multi-size cavity

    公开(公告)号:US10892209B2

    公开(公告)日:2021-01-12

    申请号:US16363468

    申请日:2019-03-25

    Abstract: A semiconductor device includes a metal substrate including a through-hole aperture having a multi-size cavity including a larger area first cavity portion above a smaller area second cavity portion that defines a first ring around the second cavity portion, where the first cavity portion is sized with area dimensions to receive a semiconductor die having a top side with circuitry coupled to bond pads thereon and a back side with a metal (BSM) layer thereon. The semiconductor die is mounted top side up with the BSM layer on the first ring. A metal die attach layer directly contacts the BSM layer, sidewalls of the bottom cavity portion, and a bottom side of the metal substrate.

    Sintered Metal Flip Chip Joints
    202.
    发明申请

    公开(公告)号:US20210005537A1

    公开(公告)日:2021-01-07

    申请号:US17027657

    申请日:2020-09-21

    Abstract: An integrated circuit die may be fabricating to have a plurality of contacts. A metal post may be formed on each of the plurality of contacts. A plurality of bumps may be formed on a plurality of contact regions of a leadframe or on the posts, in which the plurality of bumps are formed with a material that includes metal nanoparticles. The IC die may be attached to the leadframe by aligning the metal posts to the leadframe and sintering the metal nanoparticles in the plurality of bumps to form a sintered metal bond between each metal post and corresponding contact region of the leadframe.

    3D printed semiconductor package
    203.
    发明授权

    公开(公告)号:US10861715B2

    公开(公告)日:2020-12-08

    申请号:US16236099

    申请日:2018-12-28

    Abstract: In described examples, a method for encapsulating a semiconductor device includes the steps of immersing a layer of the semiconductor device in a liquid encapsulation material, irradiating portions of the liquid encapsulation material to polymerize the liquid encapsulation material, and moving the semiconductor device further from a surface of the liquid encapsulation material proximate to the layer. Immersing the semiconductor device is performed to cover a layer of the device in the liquid encapsulation material. Targeted locations of the liquid encapsulation material covering the layer are irradiated to form solid encapsulation material. The semiconductor device is moved from a surface of the liquid encapsulation material so that a new layer of the semiconductor device and/or of the solid encapsulation material can be covered by the liquid encapsulation material. The irradiating and moving steps are then repeated until a three dimensional structure on the semiconductor device is formed using the solid encapsulation material.

    Packaged multichip device with stacked die having a metal die attach

    公开(公告)号:US10832993B1

    公开(公告)日:2020-11-10

    申请号:US16408108

    申请日:2019-05-09

    Abstract: A leadless multichip semiconductor device includes a metal substrate having a through-hole aperture with an outer ring for holding a bottom semiconductor die with an inner row and an outer row of metal pads. The bottom semiconductor die has a back side metal (BSM) layer on its bottom side and a top side with bond pads mounted top side up on the ring. A metal die attach layer is directly between the BSM layer and walls of the metal substrate providing a die attachment that fills a bottom portion of the aperture. Bond wires are between the inner metal pads and the bond pads. A top semiconductor die has top bond pads mounted top side up on a dielectric adhesive on the bottom semiconductor die. Pins connect the top bond pads to the outer metal pads. A mold compound provides isolation between adjacent ones of the metal pads.

    CONTACTLESS INTERFACE FOR MM-WAVE NEAR FIELD COMMUNICATION

    公开(公告)号:US20200162127A1

    公开(公告)日:2020-05-21

    申请号:US16773557

    申请日:2020-01-27

    Abstract: A system is provided in which a first waveguide has a first resonator coupled to an end of the first waveguide. A second waveguide has a second resonator coupled to the second waveguide. The first resonator is spaced apart from the second resonator by a gap distance. Transmission of a signal propagated by the first waveguide across the gap to the second waveguide is enhanced by a confined near field mode magnetic field produced by the first resonator in response to the propagating wave that is coupled to the second resonator.

    Galvanic isolation device
    210.
    发明授权

    公开(公告)号:US10529796B2

    公开(公告)日:2020-01-07

    申请号:US16178352

    申请日:2018-11-01

    Abstract: A galvanic isolation device includes a first integrated circuit (IC) die that has communication circuitry formed in a circuit layer below the top surface. A first conductive plate is formed on the IC die proximate the top surface, and is coupled to the communication circuitry. A dielectric isolation layer is formed over a portion of the top surface of the IC after the IC is fabricated such that the dielectric isolation layer completely covers the conductive plate. A second conductive plate is juxtaposed with the first conductive plate but separated by the dielectric isolation layer such that the first conductive plate and the second conductive plate form a capacitor. The second conductive plate is configured to be coupled to a second communication circuit.

Patent Agency Ranking