Patent ID: 7172985
Filing Date: 2007-02-06
Classification: B32B,C04B,H01G

Abstract:
1. A dielectric ceramic comprising: about 94–99.9 wt % a first component defined by Formula 1; wherein: x is no more than about 0.6; and y is no more than about 0.1; and m is at least about 0.85 to no more than about 1.15; and about 0.1–5 wt % a secondary component defined by Formula 2; wherein: a, b and c are selected to lie within the region defined by points A(a=15, b=0, c=85), B(a=70, b=0, c=30), C(a=0, b=70, c=30) and D(a=0, b=15, c=85) of a ternary diagram wherein a is mole percent SiO2; b is mole percent αB α is 0 to 1; A is selected from Mg, Ca, Sr, Ba or a combination thereof; and 0–2 wt % MnO