Title :
Sinterable glass-ceramics for high-performance substrates
Author :
Kumar, A.H. ; Knickerbocker, S. ; Tummala, R.R.
Author_Institution :
IBM Gen. Technol. Div., Hopewell Junction, NY, USA
Abstract :
Glasses in the MgO-Al2O3-SiO2 system were developed for use in fabricating multilayer substrates with copper thick-film metallurgy. These glasses sintered dense in the glassy state and subsequently crystallized to yield glass-ceramics with α-cordierite as the principal crystalline phase. An understanding of the factors governing sintering, crystallization, and microstructure development has been obtained. The range of thermal expansion coefficients, dielectric constants, and flexural strengths of the sintered glass-ceramics met the requirements for a high-performance, multilayer substrate
Keywords :
aluminosilicate glasses; bending strength; ceramics; crystal microstructure; crystallisation; hybrid integrated circuits; multichip modules; permittivity; sintering; substrates; thermal expansion; thick film circuits; α-cordierite; Cu; Cu thick film technology; MgO-Al2O3-SiO2 system; crystallization; dielectric constants; flexural strengths; glass-ceramics; high-performance substrates; microstructure development; multilayer substrates; sintering; thermal expansion coefficients; Ceramics; Copper; Crystal microstructure; Crystallization; Dielectric substrates; Glass; Nonhomogeneous media; Thermal expansion; Thermal resistance; Thick films;
Conference_Titel :
Electronic Components and Technology Conference, 1992. Proceedings., 42nd
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-0167-6
DOI :
10.1109/ECTC.1992.204277
