Patent ID: 6772509
Filing Date: 2004-08-10
Classification: G06K,H01L,Y10T

Abstract:
A method of separating a thin die from a support body of a semiconductor wafer, the thin die attached to the support body by an attachment mechanism that extends across an open trench in the wafer, the method comprising the steps of:positioning a tip of a handler above the thin die, the tip having a passageway to a vacuum source; positioning an ejection pin in a spaced apart relationship beneath the thin die; moving the tip of the handler downward toward the thin die to push the thin die to break the attachment mechanism from the support body; clamping the thin die between the tip of the handler and the ejection pin; moving the ejection pin upward in the direction of the tip of the handler until the thin die is extracted from the wafer; lifting the tip of the handler and thin die away from the ejection pin; positioning the tip of the handler and thin die above a surface that is a diaphragm for measuring the pressure of a liquid; moving the tip of the handler and thin die downward toward the surface; and placing the thin die on the surface.