Abstract:
An intermediate board comprising: an intermediate board body having first and second faces wherein a semiconductor device is to be mounted on at least one of said first and second faces, said semiconductor device having a coefficient of thermal expansion that is equal to or larger than 2.0 ppm/null C. and smaller than 5.0 ppm/null C., and having surface mount terminals, said intermediate board body having a plurality of through holes through which said first and second faces communicate with each other, said intermediate board body containing an inorganic insulating material; and a plurality of conductor columns filling said through holes and containing a conductive metal, said conductor columns being to be connected with said surface mount terminals.
Abstract:
A wiring board simplifying connection of electronic parts mounted on a principal face side of the wiring board and chip capacitors mounted on a reverse face side thereof in such a manner that the wiring board 100 mounting the chip capacitors 160 on a reverse face 101c-side comprises bumps 129 capable of being connected to IC chip 10, first and second capacitor connecting pads 149p, 149g connecting the upper face parts 163 of the chip capacitors 160, a plurality of insulating layers 121, 111, 141 intervening the first and the second capacitor connecting pads, and first and second converting-conductor layers 146p, 146g in stripe pattern formed at interlayer 152, connected to the bumps 129 at the principal face 101b-side, connected to the first capacitor connecting pads 149p at the reverse face 101c-side or the second capacitor connecting pads 149g for changing the connecting positions or the connecting number between the principal face side and the reverse face side.
Abstract:
A wiring board simplifying connection of electronic parts mounted on a principal face side of the wiring board and chip capacitors mounted on a reverse face side thereof in such a manner that the wiring board 100 mounting the chip capacitors 160 on a reverse face 101c-side comprises bumps 129 capable of being connected to IC chip 10, first and second capacitor connecting pads 149p, 149g connecting the upper face parts 163 of the chip capacitors 160, a plurality of insulating layers 121, 111, 141 intervening the first and the second capacitor connecting pads, and first and second converting-conductor layers 146p, 146g in stripe pattern formed at interlayer 152, connected to the bumps 129 at the principal face 101b-side, connected to the first capacitor connecting pads 149p at the reverse face 10c-side or the second capacitor connecting pads 149g for changing the connecting positions or the connecting number at the principal face side and the reverse face side.