Methods and apparatus for semiconductor package processing

    公开(公告)号:US10515927B2

    公开(公告)日:2019-12-24

    申请号:US15634012

    申请日:2017-06-27

    Abstract: A fan-out process using chemical mechanical planarization (CMP) reduces the step-height between a semiconductor die and the surrounding overmolding of a reconstituted wafer. The reconstituted wafer is formed by overmolding a back side of at least one die that is placed with an active side facing down. The reconstituted wafer is then oriented to expose the die and the active side. A polymer layer is then formed over the reconstituted wafer. A CMP process then removes a portion of the polymer layer until a certain thickness above the die surface is obtained, reducing the step-height between the polymer layer on top of the die surface and the polymer layer on the adjacent mold compound surface. The CMP process can also be performed after a subsequent redistribution layer is formed on the reconstituted wafer.

    Method of reconstituted substrate formation for advanced packaging applications

    公开(公告)号:US10211072B2

    公开(公告)日:2019-02-19

    申请号:US15840900

    申请日:2017-12-13

    Abstract: Embodiments of the present disclosure generally describe methods for minimizing the occurrence and the extent of die shift during the formation of a reconstituted substrate in fan-out wafer level packaging processes. Die shift is a process defect that occurs when a die (device) moves from its intended position within a reconstituted substrate during the formation thereof. Generally, the methods disclosed herein include depositing a device immobilization layer and/or a plurality of device immobilization beads over and/or adjacent to a plurality of singular devices (individual dies), and the carrier substrate they are positioned on, before forming a reconstituted substrate with an epoxy molding compound. The device immobilization layer and/or the plurality of device immobilization beads immobilize the plurality of singular devices and prevents them from shifting on the carrier substrate during the molding process.

    METHODS FOR FORMING MICROWAVE TUNABLE COMPOSITED THIN-FILM DIELECTRIC LAYER

    公开(公告)号:US20200206775A1

    公开(公告)日:2020-07-02

    申请号:US16427723

    申请日:2019-05-31

    Abstract: Methods of curing a polymer layer on a substrate using variable microwave frequency are provided herein. In some embodiments, methods of curing a polymer layer on a substrate using variable microwave frequency include (a) forming a first thin-film polymer layer on a substrate, the first thin-film polymer layer including at least one first base dielectric material and at least one microwave tunable material, (b) applying a variable frequency microwave energy to the substrate and the first thin-film polymer layer to heat the substrate and the first thin-film polymer layer to a first temperature, and (c) adjusting the variable frequency microwave energy applied to the substrate and the first thin-film polymer layer to tune at least one material property of the first thin-film polymer layer.

    Substrate transfer chamber
    29.
    发明授权

    公开(公告)号:US10347516B2

    公开(公告)日:2019-07-09

    申请号:US14933635

    申请日:2015-11-05

    Abstract: Embodiments of substrate transfer chambers are provided herein. In some embodiments, a substrate transfer chamber includes a body having an interior volume, wherein a bottom portion of the body includes a first opening; an adapter plate coupled to the bottom portion of the body to couple the substrate transfer chamber to a load lock chamber of a substrate processing system; wherein the adapter plate includes a second opening aligned with the first opening to fluidly couple the interior volume with an inner volume of the load lock chamber; a cassette support disposed in the interior volume to support a substrate cassette; and a lift actuator coupled to the cassette support to lower or raise the substrate cassette into or out of the load lock chamber.

    Methods and apparatus for transferring a substrate

    公开(公告)号:US10153187B2

    公开(公告)日:2018-12-11

    申请号:US14933628

    申请日:2015-11-05

    Abstract: Embodiments method and apparatus for transferring a substrate are provided herein. In some embodiments, a substrate cassette includes a body having an upper portion and a lower portion, the upper portion and the lower portion defining an interior volume when the upper portion is coupled to the lower portion; a locking mechanism moveable between a locked position, in which the upper and lower portions are coupled, and an unlocked position, in which the lower portion can be separated from the upper portion; and a load distribution plate coupled to an upper surface of the upper portion along an edge of the upper portion to distribute a load applied to the load distribution plate.

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