Patent ID: 8574398
Filing Date: 2013-11-05
Classification: H01L,Y10T

Abstract:
1. An apparatus for removing an adhesive layer from a wafer surface, comprising: a chuck configured to support and hold a wafer, wherein said wafer comprises an adhesive layer on its top surface; a contact roller comprising an elongated cylindrical body extending along a first axis passing through its center and being configured to rotate around said first axis and to move linearly along a direction perpendicular to said first axis over said chuck and said supported wafer; a pick-up roller comprising an elongated cylindrical body extending along a second axis passing through its center and being configured to rotate around said second axis and wherein said second axis is parallel to said first axis and said pick-up roller is arranged at a first distance from the contact roller; a detaping tape configured to roll around said contact roller and said pick-up roller, and wherein said detaping tape is configured to attach to said adhesive layer and then to be removed together with the adhesive layer; wherein said contact roller comprises a surface layer that has a footprint of a circle when rolled along a flat surface; and wherein said contact roller further comprises means for attaching said detaping tape onto said adhesive layer by rotating around said first axis so that it moves linearly along a first direction over said wafer and contacts said adhesive layer with said surface layer.