Patent 9129778 was granted and assigned to Lam Research on September, 2015 by the United States Patent and Trademark Office.
A fluid distribution member assembly for use in a substrate processing system includes a fluid distribution member having a central portion and a perimeter portion. The fluid distribution member defines at least one slot formed there-through and the at least one slot extends along a non-radial path configured to allow the central portion to expand and rotate with respect to the perimeter portion.