| 摘要 |
<p>PURPOSE:To obtain a high absorptivity of a high-speed noise and improve the voltage dependent nonlinearity by making a semiconductor porcelain composition, the principal component of which is SrTiO3 and containing at least one oxide selected from a group composed of oxides of rare earth elements, Nb, W, and Ta, by using semiconductor porcelain of a glass composition. CONSTITUTION:At least one of Bi, Pb, and Zn glass oxides, one or both of B and Si glass oxides, and at least one of Fe, Mn, Co, Ni, Cr, and V glass oxides are diffused in a grain boundary. Therefore, varistor voltage can be easily controlled by adjusting the diffusion quantity to easily obtain a varistor available under low voltage. Besides, excellent voltage dependent nonlinearity can be obtained with SrTiO3 semiconductor porcelain maintaining large capacitance. Therefore, a high-speed noise can be effectively absorbed and a complex function element having high absorptivity of a high-frequency noise and a surge wave front can be obtained.</p> |
