GLASS FRIT, DIELECTRIC COMPOSITION COMPRISING THE SAME, AND THE LOW TEMPERATURE CO-FIRED CERAMIC COMPRISING THE EMBEDDED CAPACITOR LAYER

摘要

PURPOSE: A glass frit, dielectric composition, and a low temperature co-fired ceramic(LTCC) including embedded capacitor layer using thereof are provided to embed more than 10nF capacitor inside the LTCC. CONSTITUTION: A glass frit comprises a(trivalent and tetravalent network structure forming element)-bBi2O3-c(monovalent metal element)-dZnO-eSnO2-fAl2O3-gBaO-hTiO2. The glass frit satisfies the following relationships based on mol%: 0.1<=a<=40, 18<=b<=40, 0.1<=c<=44, 0.1<=d<=12, 0.1<=e<=3, 0.1<=f<=0.5, 0.1<=g<=11, and 0.1<=h<=10. The trivalent and tetravalent networking structure forming element is more than one kind selected from B and Si. The monovalent metal is more than one kind selected from Li, Na, and K. The composition of dielectric comprises dielectric including BaTiO3 powder and a glass frit thereof. 5-30 weight% of the glass frit is included based on whole dielectric composition. The LTCC includes embedded capacitor layer which is manufactured from the dielectric composition. The built-in capacitor layer is for decoupling.