Abstract:
In one configuration, a semiconductor package includes a conductive trace embedded in a base and a semiconductor device mounted on the conductive trace via a conductive structure, wherein the conductive structure is a bump structure and the width of the bump structure is bigger than the width of the conductive trace. In another configuration, a method for fabricating a semiconductor package includes providing a base, forming at least one conductive trace on the base, forming an additional insulation material on the base, and defining patterns upon the additional insulation material, wherein the pattern is formed on at least one conductive trace, wherein the conductive structure is a bump structure and the width of the bump structure is bigger than the width of the conductive trace.
Abstract:
The present invention relates to a method of making a hybrid wiring board with built-in stopper and interposer. In accordance with one preferred embodiment of the present invention, the method includes: forming a stopper on a dielectric layer; mounting an interposer on the dielectric layer using the stopper as a placement guide for the interposer; attaching a stiffener to the dielectric layer; and forming a build-up circuitry that covers the interposer, the stopper and the stiffener and provides signal routing for the interposer. Accordingly, the stopper can accurately confine the placement location of the interposer and avoid the electrical connection failure between the interposer and the build-up circuitry.
Abstract:
A wireless module, in which a first board (11) and a second board (12) are laminated, includes connecting members (18) which are connected to at least one of the first board (11) and the second board (12), and form a gap allowing mounting of mounting components including a semiconductor device (14) between the first board (11) and the second board (12). The connecting members (18) are arranged such that a plurality of connecting members (18A, 18B) are arranged uniformly in a planar direction of the boards of the wireless module.
Abstract:
One embodiment of the present invention sets forth an integrated circuit package including a substrate, an integrated circuit die, a first plurality of solder bump structures, and a first plurality of variable-size solder bump structures. The first plurality of solder bump structures electrically couple the integrated circuit die to the substrate. The first plurality of variable-size solder bump structures are disposed on a bottom surface of the substrate. The first plurality of variable-size solder bump structures are sized to be substantially coplanar with a seating plane of the integrated circuit package.
Abstract:
A circuit substrate uses post-fed top side power supply connections to provide improved routing flexibility and lower power supply voltage drop/power loss. Plated-through holes are used near the outside edges of the substrate to provide power supply connections to the top metal layers of the substrate adjacent to the die, which act as power supply planes. Pins are inserted through the plated-through holes to further lower the resistance of the power supply path(s). The bottom ends of the pins may extend past the bottom of the substrate to provide solderable interconnects for the power supply connections, or the bottom ends of the pins may be soldered to “jog” circuit patterns on a bottom metal layer of the substrate which connect the pins to one or more power supply terminals of an integrated circuit package including the substrate.
Abstract:
Disclosed herein is a method of forming a solder resist (SR) post, including: (A) forming an SR layer on a printed circuit board; (B) disposing a patterning film on an upper surface on the SR layer; (C) forming a plurality of openings in the patterning film or the SR layer; (D) filling SR ink in the openings and performing an exposure process to form a plurality of SR posts; (E) delaminating the patterning film; (F) removing an uncured portion of the SR ink on which the exposure process is performed; and (G) drying the plurality of SR posts.
Abstract:
A method for collective fabrication of 3D electronic modules comprises: the fabrication of a stack of reconstructed wafers, comprising validated active components, this stack including a redistribution layer; the fabrication of a panel of validated passive printed circuits which comprises: fabrication of a panel of printed circuits, electrical testing of each printed circuit, fitting of the validated printed circuits to an adhesive substrate, molding of the mounted circuits in an electrically insulating resin, called coating resin and polymerization of the resin, removal of the adhesive substrate, a panel comprising only validated printed circuits being thus obtained; bonding the panel with a stack (of reconstructed wafers); cutting the “stack of panel” assembly for the purpose of obtaining the 3D electronic modules.
Abstract:
A method for manufacturing a multilayered printed circuit board including forming a first insulating resin substrate having a metal layer substantially corresponding to dimensions of a semiconductor device, forming a second insulating resin substrate, forming a recess extending to the metal layer of the first insulating resin substrate such that a surface of the metal layer is exposed, accommodating the semiconductor device in the recess such that the semiconductor device is mounted on the surface of the metal layer, and forming a resin insulating layer on the first insulating resin substrate such that the semiconductor device accommodated in the recess is covered.
Abstract:
A printed wiring board includes an interlayer insulation layer, first pads positioned to mount a semiconductor element and forming a first pad group on the insulation layer, second pads forming a second pad group on the insulation layer and positioned along a peripheral portion of the first group, a first solder-resist layer formed on the insulation layer and having first openings exposing the first pads, respectively, and second openings exposing the second pads, respectively, conductive posts formed on the second pads through the second openings of the first solder-resist layer, respectively, and a second solder-resist layer formed on the first solder-resist layer and having a third opening exposing the first pads and fourth openings exposing surfaces of the posts, respectively. The second openings have a diameter greater than a diameter of the posts, and the second solder-resist layer is filling gaps formed between the second openings and the posts.
Abstract:
A printed wiring board includes an interlayer resin insulation layer, a pad structure formed on the interlayer resin insulation layer and positioned to mount a semiconductor device, and a solder-resist layer formed on the interlayer resin insulation layer and having an opening portion exposing a portion of the pad structure from the solder-resist layer. The opening portion of the solder-resist layer has a bottom surface such that the bottom surface of the opening portion is exposing an upper surface and a portion of a side surface of the pad structure.