The over glaze for electronics of the lead and cadmium free coating the electronic device which is attached

摘要

Topic The glass composition of lead free and cadmium free coating attaches this invention, is calcined, the method of administering the over glaze to the electronic device the electronic device where the acid proof over glaze was formed, and making use of the glass composition of lead free and cadmium free, offers.Solutions Lead free and the cadmium free glass composition melt at low burning temperature, are used for ideal as an especially thick film paste. The glass composition, when calcining, titanic acid bismuth crystal and/or forms titanic acid zinc crystal mainly. Ideally, as for the glass composition at mass ratio, from approximately 11% approximately 52% SiO₂ and, approximately 40% TiO₂ and, Bi₂ O of approximately 75% or less₃ and, ZnO of approximately 40% or less is included from 3.4%. However, Bi₂ O harmony of₃ and ZnO does composition approximately 15 mass of the whole glass % empty approximately 85 mass % with.