| 摘要 |
PROBLEM TO BE SOLVED: To provide a manufacturing method of a ceramic green sheet lamination, capable of favorably forming a gap having a predetermined shape for properly dividing it along a dividing groove. SOLUTION: The ceramic green sheet laminate 5 is formed by laminating a ceramic green sheets 1 and 3 to be outer layers and a ceramic green sheet 2 to be an inner layer, and by forming the dividing groove 7 along the outer edge of a wiring board region. In the manufacturing method of the ceramic green sheet laminate 5, a first step of laminating the ceramic green sheets 1 and 3 on the ceramic green sheet 2, comprising a vertically penetrating through groove 4 so that a region where the region having the dividing groove 7 formed therein and the through groove 4 that is superimposed extends along the outer edge of the wiring board region, and a second step of pressing the laminated ceramic green sheets are carried out. Thus, deformation of the ceramic green sheet 2 in the periphery of the first through groove can be made small, and closing of the gap, consisting of the through groove, can be suppressed easily. COPYRIGHT: (C)2008,JPO&INPIT |
