Patent ID: 6758934
Filing Date: 2004-07-06
Classification: B41J,Y10T

Abstract:
A method for attaching microelectronic devices to a receiving surface, the method comprising the steps of (a) providing a sheet of a thin film adhesive material having a first adhesive surface and a second adhesive surface opposite the first adhesive surface, the second adhesive surface being releasably attached to a carrier web, (b) providing a unitary cutting/application device with a movable engagement member having an adhesive affinity for the first adhesive surface, and pressing the unitary cutting/application device against the first adhesive surface to simultaneously make a plurality of cuts in the sheet of thin film adhesive material and to adhere the first adhesive surface to the engagement member, the cuts extending from the first adhesive surface to an interface between the second adhesive surface and the carrier web without significantly extending into the carrier web to provide one or more cut portions of adhesive film; (c) removing the cutting/application device from the sheet of thin film adhesive material wherein each cut portion of adhesive film is removed from the carrier web and remains adhesively attached to the engagement member of the cutting/application device; (d) engaging the second adhesive surface of each of the cut portions with predetermined locations on a receiving surface having an adhesive affinity for the second adhesive surface that is greater than the adhesive affinity of the engagement member for the first adhesive surface using the cutting/application device by urging the engagement member to press the second adhesive surface of the cut portions against the receiving surface and thereafter withdrawing the engagement member away from the receiving surface such that the second adhesive surface remains adhesively secured to the receiving surface while the first adhesive surface separates from the engagement member; (e) providing one or more microelectronic devices in a desirably aligned configuration with respect to the predetermined locations and contacting each of the microelectronic devices with the first adhesive surface of each of the cut portions to adhesively secure the microelectronic devices to the first adhesive surface of the cut portions; and (f) curing the adhesive in order to substantially bond the devices to the receiving surface.