Patent ID: 7985661
Filing Date: 2011-07-26
Classification: B23P,B28D,H01L,Y10T

Abstract:
1. A method of singulating semiconductor die from a semiconductor wafer comprising: providing the semiconductor wafer formed from a semiconducting material and having a plurality of semiconductor dies formed on a first surface of the semiconductor wafer and separated from each other by portions of the semiconductor wafer wherein the plurality of semiconductor dies include a dielectric layer covering portions of the plurality of semiconductor dies; etching a first opening through the dielectric layer and underlying layers to expose a portion of a surface of the semiconductor wafer; etching through the first opening to extend the first opening from the exposed portion of the surface of the semiconductor wafer into the semiconductor wafer; and attaching the semiconductor wafer to a carrier tape for supporting the plurality of semiconductor dies after the plurality of semiconductor dies are singulated wherein the attaching step is performed prior to the step of etching through the first opening to extend the first opening and remains attached during the step of etching through the first opening to extend the first opening.