Patent ID: 6033483
Filing Date: 2000-03-07
Classification: C23C,H01J,Y10T

Abstract:
A physical vapor deposition apparatus including an insulating sealing structure capable of sealing against a vacuum of at least 10.sup.-6 Torr, comprising:a target assembly which functions as a cathode;a process chamber which functions as an anode; and,an insulating sealing structure disposed between said target and said process chamber, said insulating sealing structure comprisinga) a rigid central portion or member for inhibiting deformation; and,b) an electrical insulator applied to said central portion, wherein said electrical insulator has a dielectric strength of at least 1.96 MV/m in air and a surface finish roughness height of less than about 0.40 .mu.m, and wherein said electrical insulator encompasses said rigid central portion.