Dickstein, Shapiro, Morin & Oshinsky, LLP.
Crystallized glass composition, sintered crystallized glass compact, and circuit substrate using the same
A crystallized glass composition contains a principal ingredient comprising SiO2, MgO and Al2O3 and contains about 2 to 20 parts by weight of B2O3 relative to 100 parts by weight of the principal ingredient. In a ternary diagram, the weight ratio (SiO2, MgO, Al2O3) lies within a region surrounded by point A (44.0, 55.0, 1.0), point B (34.5, 64.5, 1.0), point C (35.0, 30.0, 35.0) and point D (44.5, 30.0, 25.5).
Murata Manufacturing Co. Ltd
C H Y C C
C03C H05K Y10T C03C C03C
inventional additional additional inventional inventional
Toshiki Shizuharu Hiroshi Hiromichi
Tanaka Watanabe Takagi Kawakami