Abstract:
A chamber component configured to be coupled to a process chamber and a method of fabricating the chamber component is described. The chamber component comprises a chamber element comprising a first surface on a supply side of the chamber element and a second surface on a process side of the chamber element, wherein the chamber element comprises a reentrant cavity formed in the first surface and a conduit having an inlet coupled to the reentrant cavity and an outlet coupled to the second surface. Furthermore, the chamber component comprises an insertable member configured to couple with the reentrant cavity, the insertable member having one or more passages formed there through and each of the one or more passages are aligned off-axis from the conduit, wherein the one or more passages are configured to receive a process fluid on the supply side and the conduit is configured to distribute the process fluid from the one or more passages on the process side.
Abstract:
An ion energy analyzer is described for use in diagnosing the ion energy distribution (IED) of ions incident on a radio frequency (RF) biased substrate immersed in plasma. The ion energy analyzer comprises an entrance grid exposed to the plasma, an electron rejection grid disposed proximate to the entrance grid, and an ion current collector disposed proximate to the electron rejection grid. The ion current collector is coupled to an ion selection voltage source configured to positively bias the ion current collector by an ion selection voltage, and the electron rejection grid is coupled to an electron rejection voltage source configured to negatively bias the electron rejection grid by an electron rejection voltage. Furthermore, an ion current meter is coupled to the ion current collector to measure the ion current.
Abstract:
Provided is a copolymer rubber, comprising a copolymer having a star-shaped block structure (SIB-PA)n-X, wherein SIB is a block comprising styrene, butadiene, and isoprene as constituent monomers; PA is a block comprising butadiene or isoprene as a constituent monomer; X is the residue of at least one coupling agent; and n=2−4. Also provided is a process for preparing the copolymer rubber and use thereof.