Patent ID: 6593254
Filing Date: 2003-07-15
Classification: H01L,Y10S

Abstract:
A method for clamping a semiconductor device in a manufacturing process, which comprises the steps of:providing a wafer having a front side and a backside; depositing at least one encapsulating material layer over the front side and the backside of the wafer; etching the encapsulating material layer selectively over the front side of the wafer to form a predetermined structure, thereby causing wafer warpage as a result of a bowing stress of the encapsulating material layer; removing the encapsulating material layer over the back side of the wafer, one of partially and completely from the backside in accordance with a desired reduction of the bowing stress; and clamping the semiconductor device by one of electrostatically, physically, and by use of vacuum in a further course of a manufacturing process for holding the wafer.