TECHNOLOGY FOCUS - PHARMACEUTICALS - Preferred Components: The anti-reflection layer is selected from silicon nitride, porous silicon dioxide, titanium dioxide or magnesium fluoride-zinc sulfide. The protective layer is selected from phenolic resin varnish, alcoholic acid varnish, nitrocellulose varnish, epoxy varnish or acrylic varnish. The electro-conductive metal used for electroplating is selected from copper, nickel, tin, silver or gold. The electroplating liquid used in electroplating is selected from copper-plating solution, nickel-plating solution, silver-plating solution or gold-plating solution. The copper-plating solution is composed of copper pyrophosphate of 50-150g/L, potassium pyrophosphate of 250-350g/L, ammonium citrate of 10-15g/L, selenium dioxide of 0.006-0.5g/L and 2- mercaptobenzothiazole of 0.001-0.5g/L or composed of copper sulfate of 100-250g/L, sulfuric acid of 50-150g/L, potassium chloride of 100-200mg/L and polyethylene glycol of 0.05-0.3g/L. The nickel-plating solution is composed of nickel aminosulfonate of 300-500g/L, nickel chloride of 0-30g/L and boric acid of 30-40g/L. The tin-plating solution is composed of tin of 5-20g/L, tin sulfate of 10-50g/L, sulfuric acid of 100-200g/L, imidazoline of 0.1-0.2g/L and 0.1-0.2g/L. The silver-plating solution is composed of silver nitrate of 30-40g/L, potassium cyanide of 50-75g/L and potassium carbonate of 20-95g/L. The gold-plating solution is composed of potassium auricyanide of 8-20g/L, potassium cyanide of 15-30g/L, dipotassium phosphate of 10-25g/L and potassium carbonate of 10-30g/L. The organic solvent is selected from aliphatic hydrocarbon, alicyclic hydrocarbon, halogenated hydrocarbon, ester or ketone. The aliphatic hydrocarbon is selected from benzene, toluene or xylene. The alicyclic hydrocarbon is selected from cyclohexane or cyclohexanone. The halogenated hydrocarbon is selected from chlorobenzene, dichloromethane or dichlorotoluene. The ester is selected from acetic ether, methyl acetate or propyl acetate. The ketone is selected from acetone, methyl acetone or methylisobutylketone.