Patent ID: 8518210

Claim:
An apparatus for removing chemical species from an integrated circuit wafer, comprising: a chamber; a pedestal located in said chamber for holding an integrated circuit wafer; and a purge ring located in said chamber proximate to said pedestal, said purge ring comprising: an inlet portion; an inlet plenum that is located in said inlet portion and that receives gas from a gas source, wherein said gas source at least one of: generates ozone remotely from said processing chamber; and generates ozone in said processing chamber by converting oxygen to ozone using ultraviolet (UV) light; an inlet baffle located in said inlet portion; and an exhaust portion including an exhaust channel that is located substantially opposite said inlet baffle; wherein: said inlet portion and said exhaust portion at least partially define a ring hole space having a periphery; said inlet baffle conveys gas from said inlet plenum into said ring hole space and comprises a continuous slit that is substantially continuous around a peripheral arc not less than about 270°; said exhaust portion conveys gas and other matter out of a purge space; and said purge ring is operable to inhibit deposition of material evolved from a semiconductor substrate during curing.