CERAMIC GREEN SHEET, LAMINATED CERAMIC ARTICLE AND PROCESS FOR PRODUCING THE SAME

摘要

A ceramic green sheet obtained by sequentially subjecting a ceramic paint comprising at least a ceramic raw powder, a binder and an organic solvent to sheeting and drying, wherein the binder contains two or more polyvinyl acetals of different average polymerization degrees of which a polyvinyl acetal with higher average polymerization degree has a relatively large amount of hydroxyl while a polyvinyl acetal with lower average polymerization degree has a relatively small amount of hydroxyl. This ceramic green sheet is sequentially subjected to binder elimination and firing, and incorporated in a ceramic capacitor comprising a laminate of internal electrode layers (2) and dielectric layers (1) alternately arranged and, disposed on both ends of the laminate, sintered external electrodes (3). Thus, a drop of sheet strength attributed to a reduction of dielectric layer thickness can be inhibited. Accordingly, there are provided a high-strength green sheet and laminated ceramic article and a process for producing them.