An antimicrobial ceramic glazing composition comprising zinc borate for imparting antimicrobial characteristics to numerous ceramic products. The sensitivity parameter may be based on a derivative of said metric with respect to a variable on which said metric depends. The ring resonator is configured to reflect only those optical signals back into the laser cavity having wavelengths within a set of sharp peaks and the laser cavity therefore can resonate only within one of the sharp peaks. The at least one semiconductor device has a first electrode for electrical and mechanical connection to a conductive pad external to the semiconductor package. The abrasive particles have an average particle size of less than or equal to about 2 micrometers dispersed in the liquid media. The digital filter includes hold circuits FF1 to FF3 and changes the voltage level of the signal DQ, when a pattern of the output signals Q1 to Q3 thereof matches a predetermined pattern.