Patent ID: 7307032

Claim:
A low-temperature co-fired ceramic material selected from the group consisting of: A) 60 to 78 volume % glass having a composition of 46 to 60 mass % SiO 2 , 0.5 to 5 mass % B 2 O 3 , 6 to 17.5 mass % Al 2 O 3 , and 25 to 45 mass % alkaline earth metal oxide, at least 60 mass % of the alkaline earth metal oxide being SrO; more than 0 to not more than 16 volume % alumina: 10 to 26 volume % titania; and 2 to 15 volume % cordierite; and B) 60 to 78 volume % glass having a composition of 46 to 60 mass % SiO 2 , 0.5 to 5 mass % B 2 O 3 , 6 to 17.5 mass % Al 2 O 3 , and 25 to 45 mass % alkaline earth metal oxide, at least 60 mass % of the alkaline earth metal oxide being SrO; 14 to 27 volume % titania; and 5 to 15.5 volume % cordierite.