Abstract:
A flip chip style semiconductor package has a substrate with a plurality of active devices formed thereon. A contact pad is formed over the substrate. An under bump metallization (UBM) layer is in electrical contact with the contact pad. A passivation layer is formed over the substrate. In one case, the UBM layer is disposed above the passivation layer. Alternatively, the passivation layer is disposed above the UBM layer. A portion of the passivation layer is removed to create a passivation island. The passivation island is centered with respect to the contact pad with its top surface devoid of the UBM layer. A solder bump is formed over the passivation island in electrical contact with the UBM layer. The passivation island forms a void in the solder bump for stress relief. The UBM layer may include a redistribution layer such that the passivation island is offset from the contact pad.
Abstract:
A built-up printed circuit board includes stacked micro via-holes, each of which is provided for interconnection between layers in the printed circuit board, and in each of which a filling material, such as liquefied resin or conductive paste, is filled using a poly screen of a general screen printing machine.
Abstract:
A method of manufacturing a capacitor device of the present invention, includes the steps of, forming an insulating layer on a substrate, forming a recess portion in the insulating layer by an imprinting process, forming a lower electrode by filling a metal layer in the recess portion in the insulating layer, forming a photosensitive dielectric layer on the lower electrode, forming an upper electrode on the dielectric layer, and forming a dielectric layer pattern under the upper electrode by exposing/developing the dielectric layer while using the upper electrode as a mask.
Abstract:
A printed wiring board is manufactured by a method in which a laminate body having a first insulation layer and a conductive film is provided. An alignment mark is formed in the laminate body by removing at least a portion of the conductive film. An electronic component is placed on an adhesive layer provided on the first insulation layer at a position determined based on the alignment mark. After the electronic component is enclosed inside an opening of the second insulation layer, a via hole exposing a terminal of the electronic component is formed at a position determined based on the alignment mark used to determine the position of the electronic component. A via conductor is formed in the via hole, and a conductive layer is formed on the conductive film and patterned to form a conductive circuit connected to the via conductor.
Abstract:
A flip chip style semiconductor package has a substrate with a plurality of active devices formed thereon. A contact pad is formed on the substrate. An under bump metallization (UBM) layer is in electrical contact with the contact pad. A passivation layer is formed over the substrate. In one case, the UBM layer is disposed above the passivation layer. Alternatively, the passivation layer is disposed above the UBM layer. A portion of the passivation layer is removed to create a passivation island. The passivation island is centered with respect to the contact pad with its top surface devoid of the UBM layer. A solder bump is formed over the passivation island in electrical contact with the UBM layer. The passivation island forms a void in the solder bump for stress relief. The UBM layer may include a redistribution layer such that the passivation island is offset from the contact pad.
Abstract:
An apparatus that includes a plurality of metalized planes, one or more dielectric layers separating the plurality of metalized planes; and one or more conductive trenches connecting to at least one of the plurality of metalized planes.
Abstract:
An integrated circuit package system includes providing a plurality of substrates; inserting a receptor in one of the substrates, the receptor held in and not extending through the one of the substrates; inserting a conductive post in another of the substrates; mounting the one of the substrates and the another of the substrates over one another with the conductive post engaging the receptor to thermally interlock without a separate bonding material; and mounting an integrated circuit mounted on the one of the substrates or the another of the substrates.
Abstract:
A method of manufacturing a flex-rigid wiring board including disposing a flexible board comprising a flexible substrate and a conductor pattern formed over the flexible substrate and a non-flexible substrate adjacent to each other, covering a boundary between the flexible board and the non-flexible substrate with an insulating layer comprising an inorganic material, providing a conductor pattern on the insulating layer, forming a via hole opening which passes through the insulating layer and reaches the conductor pattern of the flexible board, and plating the via hole opening to form a via connecting the conductor pattern of the flexible board and the conductor pattern on the insulating layer.
Abstract:
A thin-film capacitor assembly includes two plates that are accessed through deep and shallow vias. The thin-film capacitor assembly is able to be coupled with a spacer and an interposer. The thin-film capacitor assembly is also able to be stacked with a plurality of thin-film capacitor assemblies. The thin-film capacitor assembly is also part of computing system.
Abstract:
According to one embodiment, a component-embedded printed circuit board is provided with a built-in component mounted on a component mounting surface of a substrate and enclosed by an insulating layer, an interior pattern layer for heat radiation which is provided on the opposite side of the built-in component from the substrate and radiates heat generated from the built-in component, and an exterior pattern layer for heat radiation connected to the interior pattern layer for heat radiation.