Patent ID: 6909179

Claim:
A semiconductor device comprising: a substrate; a semiconductor chip mounted on one surface of said substrate, said semiconductor chip having an integrated circuit and bonding pads formed on a main surface thereof, said main surface of said semiconductor chip having a quadrilateral shape, said bonding pads being disposed along four sides of said main surface of said semiconductor chip; a plurality of conductors being disposed on said one surface of said substrate to surround said semiconductor chip along the four sides thereof, said plurality of conductors being arranged so as to extend with one respective end thereof in a radial pattern toward said semiconductor chip such that an extension of the one respective end of at least one of said plurality of conductors extends diagonally through a corner of said semiconductor chip; a plurality of bonding wires electrically connecting said bonding pads with tips of said plurality of conductors, respectively; and a resin body sealing said semiconductor chip, said plurality of conductors and said plurality of bonding wires; wherein a pitch between adjacent bonding pads increases in a direction toward four corners defined by the four sides of said main surface of said semiconductor chip; wherein a largest pitch of the tips of the conductors of two adjacent conductors at the vicinity of each of the four corners of said semiconductor chip is less than twice a smallest pitch with respect to pitches of respective tips of said plurality of conductors surrounding said semiconductor chip; and wherein the tips of the conductors terminate at a position on said one surface of said substrate so as to surround a periphery of said semiconductor chip with the bonding wires connecting the tips of the conductors with the bonding pads of said semiconductor chip.