Patent ID: 7713378
Filing Date: 2010-05-11
Classification: H01L

Abstract:
1. A device for ozone-processing of substrates, the device comprising: a carrying platform for carrying a substrate loaded onto said platform; a heating device for heating a substrate when loaded onto said carrying platform; a gas supply head disposed over and above said carrying platform, said gas supply head made up of a main head unit bored with a gas flowpath and perforated, in its lower surface, with a plurality of downward carrying-platform-directed gas conduction holes communicating with the gas flowpath, the plurality of gas conduction holes scattered at a predetermined distance, a plurality of separate gas conduction pipes of a predetermined length defining basal and distal ends, each said gas conduction pipe connected at its basal end to one of the gas conduction holes, said gas conduction pipes mounted on the lower surface of said main head unit so as to hang downward, a plurality of separate facing plates perforated, top-side-to-underside, with a processing-gas-discharging through-holes for supplying processing-gas to the substrate, and arrayed in one-to-one correspondence at the distal ends of said gas conduction pipes in a manner of receiving the distal ends so that each processing-gas-discharging through-hole is connected to said gas conduction hole, the facing plates arrayed at a predetermined distance from said main head unit, each said facing plate arrayed on the same plane to be close to and face the substrate on the carrying platform for controlling a thickness of the processing gas flow layer flowing along the surface of the substrate after discharging through the processing gas-discharging through-hole; and a gas supplying device for supplying processing gas to and discharging it through the discharging through-holes in said facing plates; wherein said facing plates are formed in a triangular, rectangular or hexagonal shape, and are arrayed in a lattice having gaps between adjacent plates for removing processing-gas existing between the substrate and the facing plates to a space between the facing plates and the main head unit, the span of said gaps in said latticework is at least 0.5 mm and not more than 3 mm, and the thickness of said facing plates is at least 0.1 mm and not more than 5 mm.