| 摘要 |
<p>PURPOSE:To obtain a ceramic wiring board mounting a semiconductor element which board can normally operate the semiconductor element for a long term, by reducing the change of a resistance value of a resistor, and restraining waveform perturbation to the minimum which is caused by reflection of a signal travelling a metallized wiring layer. CONSTITUTION:In a ceramic wiring board wherein metallized wiring layers 5a, 5b, 5c and a resistor 8 are formed on an insulative substratum 1, the resistor 8 is formed of 100 pts.wt. of metal powder and 10-100 pts.wt. of insulator powder. The metal powder contains 10-70wt.% molybdenum powder and 30-90wt.% rhenium powder.</p> |
