| 摘要 |
<p>PURPOSE:To adjust capacitance, and manufacture a ceramic multilayer wiring board having a high yield by providing a trimmed capacitor on an inner layer sandwiched between a number of ceramic substrates. CONSTITUTION:A capacitor upper electrode 16 with one side thereof formed into a comb tooth shape is printed on an upper part of a dielectric material 14, and it is calcined after having been dried. A probe is brought into contact with an area between a capacitance check pad 12b of a lower electrode 12a and the electrode 16 to check the capacitance of the capacitor. When the capacitance is outside of a tolerance, the upper electrode 16 is trimmed by a laser beam or the like, so that a trimmed portion 16a is formed. Thereafter, joint glass 18 is printed on a substrate, and an alumina substrate 20 is laminated on the glass. This laminated substrate is then calcined. Thereby, it is possible to manufacture with a high yield a ceramic multilayer wiring board on which a capacitor with its capacitance prepared is mounted.</p> |
