A multilayer AIN-W cofired body has been developed using the pressless
sintering technique. Effects of additives, such as Y2O3, CaO, La2O3,
MgO, Al2O3 and SiO2, on the sheet resistance of W conductor were studi
ed. The sheet resistance of the W conductor increases with increasing
additives in the W paste. However, the oxides can be divided into two
groups. The effect of the first group on sheet resistance is different
from that of the second group.