Patent ID: 6171980
Filing Date: 2001-01-09
Classification: H01L,Y10S

Abstract:
A method of spin coating a semiconductor wafer, the wafer characterized by first and second substantially planar surfaces, the method comprising the steps:(a) supporting the wafer, in a coater cup, with a spin chuck that is contiguous to, and disposed at approximately the center of, the first surface;(b) depositing a coating material over at least a portion of the second surface;(c) spinning the wafer so as to distribute the coating material over remaining portions of the second surface and to cause excess coating material to be removed centrifugally from the second surface;(d) injecting a developing fluid onto the back side of the wafer so that excess coating material mixes with the developing fluid;(e) injecting a rinsing fluid onto the back side of the wafer at a position within the cup sufficiently near the first surface so as to cause the developing fluid to be rinsed from the first surface.