Patent ID: 6620301
Filing Date: 2003-09-16
Classification: A63B,C23C,H01J

Abstract:
A method of depositing a layer of material on a first semiconductor substrate comprising:providing a sputtering system having a sputtering chamber, a sputtering target, a wafer chuck, and a plurality of electromagnets disposed about the sputtering chamber and below the wafer chuck, wherein power to each electromagnet of the plurality of electromagnets is individually controllable; placing the first semiconductor substrate on the wafer chuck and within the sputtering chamber; sputtering a target material from the sputtering target onto a surface of the first semiconductor substrate to form the layer of material; and applying power to the plurality of electromagnets during sputtering, wherein applying power comprises applying a first set of power conditions to the plurality of electromagnets, wherein differing amounts of power are applied to each electromagnet of the plurality of electromagnets; removing the first semiconductor substrate from the sputtering chamber; placing a second semiconductor substrate on the wafer chuck and within the sputtering chamber; sputtering the target material on a surface of the second semiconductor substrate; and applying power to the plurality of electromagnets using a second set of power conditions, wherein the second set of power conditions is different from the first set of power conditions and the second set of power conditions is determined by measuring a uniformity in thickness of the layer of material formed on the first semiconductor substrate.