PRODUCTION OF MULTILAYER CERAMIC BOARD

摘要

PURPOSE:To facilitate formation of an outermost wiring pattern by removing a columnar electrode in flush with a compositional sheet of a board. CONSTITUTION:A compositional sheet 1 of a board and a contraction suppressing sheet 2 are formed on a film 3. A hole is drilled through both sheets and subsequently filled with a conductor paste 4. A plurality of compositional sheets 1 are then laminated sequentially between uppermost and lowermost contraction suppressing sheets 2. An inner layer conductor pattern 5 is foamed between the compositional sheets 1 at that time. The laminate of sheets is then sintered at such temperature as only a compositional sheet 1 made of low temperature sintering material is sintered and the uppermost and lowermost contraction suppressing sheets 2 not sintered under that temperature, are removed thus forming a columnar electrode 6. The columnar electrode 6 is then machined aligning the upper and lower surfaces of the compositional sheet 1 thus forming an outermost wiring pattern easily.