Monolithic multicomponents ceramic (MMC) Substrate

Publisher Website
Google Scholar
Abstract
New monolithic multicomponents ceramic (MMC) substrates were made using the glass-ceramic material, low firing high dielectric constant ceramic material, metal oxide resistance materials and metal conductors with green sheets laminating cofiring process technologies. In the MMC substrates, many passive components, such as capacitors, resistors and wiring conductors can be involved. The new MMC substrates have the following excellent characteristics: 1) Many large capacitance capacitors can be formed in the substrate (10 pF - 3 μF); 2) Many large resistance resistors can be formed in the substrate (10 Ω/□ - 1 MΩ/□); 3) Silver, silver-palladium and gold can be used in wiring conductors or internal electrodes; 4) A plurality of resistor and capacitor elements can be three-dimensionally constructed in the substrate; 5) Miniaturization and cost reduction can be accomplished in the substrate. The MMC substrates were applied to voltage controlled crystal oscillator (VCXO) circuits and RC active filter circuits. The VCXO in this MMC substrate oscillates at 6.4017 MHz oscillation frequency and the dimensions for this VCXO are reduced to 1/10, compared with an oscillator with the same functions. The RC active filter in this MMC substrate can be selected for low-pass filter, the band-pass filer or the high-pass filter function by choosing appropriate external terminals.

This publication has 2 references indexed in Scilit: