| 摘要 |
<p>PURPOSE:To provide a multi-layer circuit substrate with built-in capacitor having an excellent substrate strength by reducing an absolute value of a dielectric constant temperature characteristic of a substrate body. CONSTITUTION:In a multi-layer circuit substrate with built-in capacitor 10, a plurality of dielectrics 1a, 1b... composed of a glass component and an inorganic filler are laminated in which a specific wiring pattern 2 and a capacitance generation pattern 3 composed of conductive materials of a gold, silver, or copper system is formed, and on which a thick film resistor film 6 is formed. The inorganic filler has a perovskite crystalline structure of alumina and a particle size 2 to 10mum and contains a dielectric material having a negative temperature characteristic.</p> |
