PHOTONIC INTEGRATED CIRCUIT PACKAGES INCLUDING SUBSTRATES WITH GLASS CORES

    公开(公告)号:US20240176085A1

    公开(公告)日:2024-05-30

    申请号:US18059074

    申请日:2022-11-28

    CPC classification number: G02B6/43 G02B6/122 G02B6/30

    Abstract: Microelectronic assemblies, related devices and methods, are disclosed herein. In some embodiments, a photonic assembly may include a substrate having a core with a surface, wherein a material of the core includes glass; and a dielectric material on a portion of the surface of the core, the dielectric material including conductive pathways; a photonic integrated circuit (PIC) electrically coupled to the conductive pathways in the dielectric material; a first optical component between the PIC and the surface of the core, wherein the first optical component is along a perimeter of the core; and a second optical component coupled to the first optical component, wherein the second optical component is optically coupled to the PIC by an optical pathway through the first optical component.

    METHODS AND APPARATUSES FOR THROUGH-GLASS VIAS

    公开(公告)号:US20240112973A1

    公开(公告)日:2024-04-04

    申请号:US17958053

    申请日:2022-09-30

    CPC classification number: H01L23/15 H01L21/486 H01L23/49827

    Abstract: Through-glass vias (TGVs) are formed without the use of a planarization step to planarize the TGV fill material after filling holes that extend through a glass layer with the fill material. After the holes are filled with the fill material, the fill material is etched and the glass layer is etched. After etching of the glass is performed, the top and bottom surfaces of the glass layer are recessed relative to the top and bottom surfaces of the fill material in the holes, resulting in formation of fill material stubs. TGV pads are then formed on the fill material stubs. The resulting pads can have protrusions that extend away from a surface of the glass layer. If the TGVs are plated through-holes, a portion of the metal lining the inner wall of a TGV hole can extend past a surface of the glass layer and into a TGV pad.

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