Preparation of Green Tapes for LTCC/Cu Multilayer Substrates

Abstract

The green tapes of Al 2 O 3 /glass composite were prepared by tape casting process using poly methyl methacrylate (PMMA) as a binder. The results show that the slurry for tape casting exhibits a typical shear thinning behavior. The best pyrolysis procedure was found in nitrogen atmosphere to a maximum temperature of 600°C. The dielectric constants are between 4.6 and 7.3 depending on the glass content. The dissipation factors are about 0.2 % in the frequency range from 1 KHz to 1 MHz. The green tapes using PMMA as a binder can be sintered in nitrogen atmosphere for LTCC/Cu multilayer ceramic substrate.

Large Planar Na-β″-Al2O3 Solid Electrolytes for Next Generation Na-Batteries

“…Commercial tubular BASE membranes are generally produced by isostatic dry bag pressing, although Ionotec also uses electrodeposition and extrusion for the production of certain geometries [17]. By comparison, tape casting is a commercially established method for producing flat ceramic sheets for applications including microelectronic circuits and fuel cells [18][19][20]. Lu et al describe tape casting of Na-β"-Al 2 O 3 , where they found that PMMA binder with a mixed MEK/ethanol solvent system provided much more consistent results than tapes based on PVB in water [16].…”