Advances in high C-V multilayer ceramic chipcapacitors

摘要

It is pointed out that the multilayer ceramic chip capacitor (MCC)has made great strides in the area of package density, described as thecapacitance-voltage (C-V) product divided by the case size. Thishigh-density packaging requirement is manifest in telecommunications,computers, and consumer electronics and other battery-powered products.The increased use of battery-powered products and systems has in turnreduced voltage rating requirements, and therefore allows reduceddielectric thicknesses for MCCCs. The voltage rating for these densemultilayer ceramic chip capacitors was selected at 16 V, to allow for areasonable factor of safety in most battery-powered applications andbecause of its typical rating for tantalum capacitors. This technologyprovides a means for packaging a 16-V, 10-μF capacitor in an EIA 1206(0.120 in×0.060 in) case size