Patent 10113232 was granted and assigned to Lam Research on October, 2018 by the United States Patent and Trademark Office.
An azimuthal mixer component that may be plumbed in-line with a showerhead stem tube of a semiconductor processing apparatus is provided. The azimuthal mixer may include a main passage that is coaxial with the stem tube, and one or more plenums that partially or wholly encircle the main passage. Corresponding sets of radial passages may fluidically connect the main passage with each of the plenums.