Patent ID: 7420282

Claim:
A connection structure for electrically connecting a plurality of semiconductor element connection terminals of a semiconductor element with a plurality of wiring board connection terminals of a wiring pattern provided on a wiring board, the wiring patter including: a plurality of inner leads respectively having the wiring board connection terminals, and outer leads respectively connected to the inner leads, each end of the inner leads opposite to another ends which are connected with the outer leads aligning along an outer circumference of an area where the semiconductor element is mounted, and the wiring board including: a solder resist covered peripheral part which covers the inner leads with solder resist, and a solder resist covered center part which covers the area where the semiconductor element is mounted with the solder resist, the solder resist covered peripheral part having a solder resist opening/solder resist openings which expose(s) the wiring board connection terminals respectively provided at the ends of the inner leads which are opposite to the another ends connected with the outer leads, and the solder resist covered center part covering the ends of the inner leads which are opposite to the another ends connected with the outer leads.