Silver coated spherical resin, a method for manufacturing the same, and an anisotropic conductive adhesive containing silver-coated spherical resin, the anisotropic conductive film, and the conductive spacers

The silver coating spherical resin, and spherical resin, comprising a silver coated on the surface of the spherical resin, relative to 100 parts by mass of silver coated spherical resin, the amount of the silver is 2 to 80 parts by weight, and crystallite size of the silver measured by X-ray diffraction method is 18～24Nm. Method for manufacturing the silver-coated spherical resin, the spherical resin having a step of performing a pre-treatment with an aqueous solution of a tin compound, then, the spherical resin, a step of performing electroless silver plating using a reducing agent, wherein in the pretreatment, the temperature of the aqueous solution of the tin compound and 20 to 45 ° C..