A simple structure socket 10 for connecting a ball grid array integrated
circuit device to a test circuit has a base 14, contacts 26 arranged
corresponding to the ball grid array, a nest assembly 16 of two comb
structures 70 and a lever assembly 18 for spacing opposed tip portions of
each contact away from each other to define a gap for receiving a ball.
The lever assembly has two rectangular frames 86 each made of a distal
cross piece 94, a proximal cross piece and two side pieces connecting the
distal and proximal cross pieces. The two rectangular frames are arranged
so that the side pieces are intersected at substantially mid portions
thereof. This allows that, by depressing the proximal cross pieces toward
the base, the distal cross pieces forces the comb structures toward each
other.