Abstract:
A hybrid core substrate with embedded components, and methods for making the same, are disclosed. In an aspect a hybrid core substrate comprises a rigid core, a first laminate layer structure disposed above and mounted to the top surface of the rigid core and having a cavity in which a first component is embedded, and a second laminate layer structure disposed above and mounted to a top surface of the first laminate layer structure and having at least one electrical connection to the first laminate layer structure and at least one electrical connection to the first component, a first plurality of contacts disposed on the top surface of the second laminate layer structure and electrically connected to the second laminate layer structure. In some aspects, at least one contact is electrically connected to the embedded component.
Abstract:
Methods and apparatus for controlling an equivalent-series resistance (ESR) of a capacitor are provided. An exemplary apparatus includes a substrate having a land side, the capacitor mounted on the land side of the substrate and having both the ESR and terminals, a resistive pattern coupled to the terminals, and a plurality of vias coupled to the resistive pattern. The resistive pattern is configured to control the ESR. The resistive pattern can be formed of a resistive paste. The resistive pattern can be formed in a substantially semicircular shape having an arc ranging from substantially 45 degrees to substantially 135 degrees. The capacitor can be a surface mount device. The resistive pattern can be formed in a shape of a land-side capacitor mounting pad, a via, or both.
Abstract:
A semiconductor substrate according to some examples of the disclosure may include a substrate with a cavity in a top surface of the substrate, a plurality of cavity interconnections embedded below a bottom surface of the cavity and extending to a bottom surface of the substrate, and a plurality of side interconnections to either side of the cavity extending from the top surface of the substrate to the bottom surface of the substrate. Each of the plurality of side interconnections may include an electrically conductive stop etch layer in the same horizontal plane as the bottom of the cavity.
Abstract:
A semiconductor package may include a lower substrate with one or more electronic components attached to a surface thereof and an upper substrate with one or more cavities wherein the upper substrate is attached to the lower substrate at a plurality of connection points with the one or more electronic components fitting within a single cavity or a separate cavity for each component that allow the overall form factor of the semiconductor package to remain smaller. The plurality of connection points provide a mechanical and electrical connection between the upper and lower substrate and may include solder joints there between as well as conductive filler particles that create an adhesive reinforcement matrix when compressed for assembly.
Abstract:
An inductor can include a first substrate, a magnetic piece, and a conductor. The first substrate can be formed within a second substrate. The magnetic piece can be connected to a first side of the first substrate. The conductor can be formed within the second substrate, on the second substrate, or both. The conductor can have an input and an output. The conductor can be configured to surround the first substrate without being in contact with the first substrate and without being in contact with the magnetic piece.
Abstract:
Methods and apparatus for formation of a semiconductor substrate with photoactive dielectric material, embedded traces, a padless skip via extending through two dielectric layers, and a coreless package are provided. In one embodiment, a method for forming a core having a copper layer; laminating the copper layer a photoactive dielectric layer; forming a plurality of trace patterns in the photoactive dielectric layer; plating the plurality of trace patterns to form a plurality of traces; forming an insulating dielectric layer on the photoactive dielectric layer; forming a via through the insulating dielectric layer and the photoactive dielectric layer; forming additional routing patterns on the insulating dielectric layer; removing the core; and applying a solder mask.