“…CaO-B 2 O 3 -SiO 2 ternary system glass ceramics have become an attractive material technology for electronic packaging applications due to their significant advantages, such as low sintering temperature, low dielectric constant, low cost and good compatibility with Si substrates [1][2][3][4][5]. From the material processing point of view, CaO-B 2 O 3 -SiO 2 ternary system is a glass ceramic composite, which can be densified at sintering temperatures <900 • C. It is known that the physical characteristics of the resulting glass ceramic composites, such as the dielectric constant, thermal expansion, and mechanical strength, are mainly determined by the amount of crystalline and glass phases.…”