Patent ID: 8173245
Filing Date: 2012-05-08
Classification: C09J,H01L,Y10T

Abstract:
1. A support tape comprising: a non-expandable adhesive tape comprised of backgrind tape having a first rigidity value and an adhesive on a first surface thereof for completely covering a major surface of a semiconductor wafer; and a plurality of laterally spaced elongated support ribs arranged on a side of said adhesive tape opposite said adhesive and having a second rigidity value, wherein said second rigidity value is higher than said first rigidity value to enable a greater folding or bending action of said adhesive tape when peeling said adhesive tape from said semiconductor wafer in a direction orthogonal to a direction of elongation for said ribs compared to peeling in a direction parallel to said direction of elongation for said ribs; wherein said adhesive tape and said plurality of laterally spaced elongated support ribs provide a rigid support which does not sag, enabling said semiconductor wafer to be thinned and said adhesive tape to be removed without breakage of said semiconductor wafer.