Patent ID: 6419994
Filing Date: 2002-07-16
Classification: B05D,C23C,Y10S

Abstract:
A method of chemical vapor deposition, comprising:providing a vaporization surface; heating the vaporization surface; flowing material comprising at least one of Ba(THD)2, Sr(THD)2, and Ti(THD)2(Oâ€”iPr)2 past the heated surface to vaporize said material; forming a deposit on the vaporization surface during the vaporization; stopping the flow of said material; utilizing the vaporization surface as an electrode along with a second electrode that does not participate in vaporization of said material to form a plasma from one or more of Cl2, CCl4, and CF4; providing one of the vaporization surface and the second electrode with a negative bias of from about âˆ’1,000 to about âˆ’20,000 volts while RF energy is supplied to the other of the vaporization surface and the second electrode to form the plasma; and removing at least a portion of the deposit with the plasma.