Patent ID: 6293222
Filing Date: 2001-09-25
Classification: C23C,H01J

Abstract:
An apparatus for coating or treating a substrate by means of a remote plasma CVD process, said apparatus comprisinga reaction chamber for the substrate to be treated or coated;means for feeding a reactant gas into the reaction chamber;means for exciting an excitation gas to form a plasma in the excitation gas, wherein said means for exciting the excitation gas comprises a plurality of modular plasma source devices arranged, either in a linear arrangement or in a two-dimensional planar array, over said substrate;means for feeding the excitation gas into the reaction chamber with the reactant gas in the presence of the substrate;means for removing exhaust gas from the reaction chamber; andmeans for moving said substrate in a substrate motion direction relative to said plasma source devices, wherein said substrate motion direction is at an angle (.alpha.) less than 90.degree. relative to a long axis of said arrangement or array of said plasma source devices, whereby edge effects causing spatial variations in coating properties are minimized.