Patent ID: 6913509

Claim:
A lapping jig on which a workpiece having a plurality of magnetic heads and a plurality of resistance elements is to be mounted, comprising: a work surface for pressing said workpiece against a polishing surface; a plurality of displacing portions arranged along said work surface, each displacement portion having a hole, each of the holes being aligned alone a straight line; a plurality of first columnar structures, each of the first columnar structures configured for supporting each of said displacing portions to a portion on the side of said work surface, each of said first columnar structures being narrower in width than each of said displacing portions, and adjacent ones of said first columnar structures defining a continuous cavity therebetween; a plurality of second columnar structures, each of the second columnar structures configured for connecting adjacent ones of said displacing portions and aligned along a line connecting the centers of adjacent holes; and a plurality of third columnar structures, each of the third columnar structures configured for supporting each of said second columnar structures to another portion opposite to said portion on the side of said work surface.