Patent ID: 7713443
Filing Date: 2010-05-11
Classification: C01B,C01P,C04B,C09K,H01L

Abstract:
1. A production method of a phosphor comprising: mixing raw material powders of silicon nitride, M element-containing inorganic substance having oxide of M element, and A element-containing inorganic substance as starting materials (wherein the M Element is one or more elements selected from the group consisting of Mn, Ce, Pr, Nd, Sm, Eu, Tb, Dy, Ho, Er, Tm, and Yb; the A Element is one or more elements selected from the group consisting of Mg, Ca, Sr, and Ba; the oxide of M element is on M are satisfied, so as to obtain a raw material mixture; and baking the raw material mixture at a baking temperature in a range of 1200° C. to 2200° C. in a nitrogen atmosphere so as to produce the phosphor as an inorganic composition containing the at least M Element, A Element, silicon, oxygen, and nitrogen, and including at least an inorganic crystal having the same crystal structure as that of A