Patent ID: 6540839
Filing Date: 2003-04-01
Classification: C23C,H01F

Abstract:
An apparatus for uniformly coating a magnet having a plurality of surfaces, comprising:a reaction chamber having a port for introducing said magnet into said reaction chamber; a heater for heating said reaction chamber; a carrier gas port being in fluid communications with said reaction chamber for introducing a carrier gas into said reaction chamber; a reactant gas port being in fluid communications with said reaction chamber for introducing a reactant gas into said reaction chamber; and a UV light source adjacent said reaction chamber; wherein when said magnet and said carrier gas are introduced into said reaction chamber, said magnet becomes suspended in said reaction chamber so that when said reactant gas is introduced in said reaction chamber, said UV light source causes an optically activated chemical reaction to occur and causes all of said plurality of surfaces of said magnet to be uniformly coated.