Patent ID: 8388782
Filing Date: 2013-03-05
Classification: C09J,H01L,Y10T

Abstract:
1. A method for attaching a handler to a wafer, the wafer comprising an integrated circuit (IC), the method comprising: forming a layer of an adhesive on the wafer, the adhesive comprising a polyimide-based polymer configured to withstand processing at a temperature of over about 280° C.; and adhering a handler, wherein the handler comprises a test apparatus comprising electrical vias with connections configured to mate to the electrical contacts on the wafer, to the wafer using the layer of adhesive; testing the wafer using the handler that is adhered to the wafer by the layer of adhesive; after testing the wafer using the handler, ablating the adhesive through the handler using a laser, wherein a wavelength of the laser is selected based on a transparency of the handler material; and separating the handler from the wafer after ablating the adhesive.