Electromagnetic interference shield created on package using high throughput additive manufacturing

    公开(公告)号:US11380624B2

    公开(公告)日:2022-07-05

    申请号:US16651949

    申请日:2017-09-30

    Abstract: A device package and a method of forming the device package are described. The device package includes a substrate having a ground plane and dies disposed on the substrate. The dies are electrically coupled to the substrate with solder balls or bumps surrounded by an underfill layer. The device package has a mold layer disposed over and around the dies, the underfill layer, and the substrate. The device package further includes an additively manufactured electromagnetic interference (EMI) shield layer disposed on an outer surface of the mold layer. The additively manufactured EMI shield layer is electrically coupled to the ground plane of the substrate. The outer surface of the mold layer may include a topmost surface and one or more sidewalls that are covered with the additively manufactured EMI shield layer. The additively manufactured EMI shield may include a first and second additively manufactured EMI shield layers and an additively manufactured EMI shield frame.

    Interconnection structure fabrication using grayscale lithography

    公开(公告)号:US11101205B2

    公开(公告)日:2021-08-24

    申请号:US16564168

    申请日:2019-09-09

    Abstract: An lithographic reticle may be formed comprising a transparent substrate, a substantially opaque mask formed on the transparent substrate that defines at least one exposure window, wherein the at least one exposure window has a first end, a first filter formed on the transparent substrate within the at least one exposure window and abutting the first end thereof, and a second filter formed on the transparent substrate within the at least one exposure window and abutting the first filter, wherein an average transmissivity of the first filter is substantially one half of a transmissivity of the second filter. In another embodiment, the at least one exposure window includes a third filter abutting the second end and is adjacent the second filter. Further embodiments of the present description include interconnection structures and systems fabricated using the lithographic reticle.

    Organic interposers for integrated circuit packages

    公开(公告)号:US10998272B2

    公开(公告)日:2021-05-04

    申请号:US16573943

    申请日:2019-09-17

    Abstract: An electronic interposer may be formed using organic material layers, while allowing for the fabrication of high density interconnects within the electronic interposer without the use of embedded silicon bridges. This is achieved by forming the electronic interposer in three sections, i.e. an upper section, a lower section and a middle section. The middle section may be formed between the upper section and the lower section, wherein a thickness of each layer of the middle section is thinner than a thickness of any of the layers of the upper section and the lower section, and wherein conductive routes within the middle section have a higher density than conductive routes within the upper section and the lower section.

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