Patent ID: 7732905

Claim:
A package comprising: a receiving substrate having slots provided at vertical intervals, substrate pads provided on a wall of the slots, and openings corresponding to the slots, the receiving substrate includes: a substrate body having a loading space and slots on two confronting inner surfaces that define the loading space; and a circuit wiring layer formed on the substrate body and including the substrate pads, terminal pads provided on an outer surface of the substrate body, and an inner wiring layer electrically connecting the substrate pads to the terminal pads, wherein the substrate body includes: a first substrate body having a lower surface supporting a wiring layer with the terminal pads; a pair of second substrate bodies stacked facing each other at opposite sides of the upper surface of the first substrate body and provided with the and a third substrate body stacked on the second substrate bodies, wherein the substrate body is an integral body composed of the first substrate body, the pair of second substrate bodies and the third substrate body; and a unit package having a plurality of connecting pads provided on one surface, the unit package being horizontally insertable into the slots through the openings, such that the connecting pads are electrically connected to the substrate pads by mechanical contact, and the unit package being horizontally removable from the slots through the opening to be replaced with another unit package without disassembling the receiving substrate, wherein the unit package includes: a semiconductor chip; and a wiring substrate on which the semiconductor chip is mounted, the wiring substrate supporting the connecting pads.