Patent ID: 7438286

Claim:
A workpiece holding jig for holding a workpiece having a plurality of first dividing lines extending in a predetermined direction and a plurality of second dividing lines formed in a direction intersecting the plurality of first dividing lines, said workpiece holding jig comprising: a holding jig body; and a soft sheet mounted on top of the holding jig body, wherein the holding jig body has a plurality of first linear through-grooves corresponding to the plurality of first dividing lines and a plurality of second linear through-grooves corresponding to the plurality of second dividing lines, the first linear through-grooves have upper ends and lower ends, the second linear through-grooves include upper through-grooves that connect the upper ends of one pair of adjacent first linear through-grooves, and lower through-grooves that connect the lower ends of another pair of adjacent first linear through-grooves, a plurality of suction-holes are formed in the soft sheet at positions corresponding to a plurality of areas sectioned by the plurality of first dividing lines and the plurality of second dividing lines, and suction-passages are formed in the holding jig body, the suction passages being connected to the plurality of suction-holes but not intersecting with either the first through-grooves or the second through-grooves.