Patent ID: 8193627

Claim:
An IC chip mounting package comprising: an IC chip having input/output terminals; and a package base member for mounting the IC chip, the package base member having first connecting terminals, the IC chip and the package base member being connected via an interposer which includes (i) second connecting terminals, on a side of the package base member, which are arranged so as to be connected to the first connecting terminals, respectively, (ii) third connecting terminals, on a side of the IC chip, which are arranged so as to be connected to the input/output terminals, respectively, and (iii) respective wires for connecting the second connecting terminals and the third connecting terminals, the IC chip being provided inside a device hole of the package base member, the package base member, the IC chip, and the interposer being sealed with sealing resin at their respective connecting sections, a distance between a shorter side of the IC chip and a shorter side of the device hole being larger than a distance between a longer side of the IC chip and a longer side of the device hole, and the sealing resin having a coefficient of linear expansion of not more than 80 ppm/° C.