Abstract:
A printed circuit board (20) includes a laminated core (210) including at least an internal conductive layer (L 2 , L 5 ), and a build-up layer (212, 214) on the laminated core (210). The build-up layer (212, 214) includes a top conductive layer (L 1 , L 6 ). Microvias (220a, 220b) are disposed in the build-up layer (212, 214) to electrically connect the top conductive layer (L 1 , L 6 ) with the internal conductive layer (L 2 , L 5 ). A power/ground ball pad array is disposed in the top conductive layer (L 1 ). The power/ground ball pad array includes power ball pads (302) and ground ball pads (402) arranged in an array with a fixed ball pad pitch P. The power/ground ball pad array includes a 4-ball pad unit area (2a, 2b) that is comprised of only one ground ball pad and three power ball pads, or comprised of only one power ball pad and three ground ball pads.
Abstract:
Disclosed are a printed circuit board capable of increasing heat dissipation and bending strength by using aluminum and a manufacturing method therefor. The printed circuit board comprises: a double-sided substrate which comprises an insulation layer of an insulating material, a base layer which is bonded on either side of the insulation layer and has a circuit pattern formed on the surface thereof and is made of an aluminum material, and a bonding member interposed to bond the base layer to the insulation layer; a second insulation layer formed on the base layer of the double-sided substrate; a second base layer which is bonded on the second insulation layer by means of a second bonding member; a via hole which penetrates the double-sided substrate, the second insulation layer, and the second base layer; a substitution layer formed by the surface treatment of zincifying the surface of the second base layer and the exposed inner part of the via hole; a plating layer formed on the substitution layer; and a second circuit pattern formed on the plating layer.
Abstract:
An interposer substrate includes an array of interconnects in the interposer substrate, the array of connectors arranged in accordance with an array of interconnects for a processor on a circuit substrate, at least one conductive trace in the interposer substrate in connection with at least one connector in the array of interconnects, the conductive trace arranged parallel to the interposer substrate such that no electrical connection exists between the connector in the interposer substrate and a corresponding one of the interconnects for the processor on the circuit substrate, and at least one peripheral circuit residing on the interposer substrate in electrical connection with the conductive trace.