Patent ID: 6683003
Filing Date: 2004-01-27
Classification: B29C,B30B,H01L

Abstract:
An apparatus for planarization of a surface of a wafer comprising:a chamber body having an interior surface and first and second ends; a base plate for closing said first end of said chamber body, said base plate having an inner surface; a press plate for closing said second end of said chamber body, said press plate having a pressing surface, said pressing surface, said inner surface and said interior surface for defining a chamber; a rigid plate having a top surface and a bottom surface disposed within said chamber, said top surface being substantially parallel to said pressing surface, said rigid plate for distributing an applied force to said wafer; a flexible pressing puck member having upper and lower surfaces, said lower surface of said flexible pressing puck member being seated on said top surface of said rigid plate, said upper surface of said flexible pressing puck member opposite to said pressing surface, said flexible pressing puck member for distributing a force applied thereto by said rigid plate to said wafer; and a drive for applying force to said bottom surface of said rigid plate to drive said rigid plate and said flexible pressing puck member toward said pressing surface.