kari butanol value The measure of the strength of a solvent, i.e., its ability to dissolve soils. The higher the value, the more effective the solvent but also the greater its tendency to attack delicate plastics.

kiss pressure Initial pressure applied to layers to be bonded into multi-layer printed circuit boards whereby the prepreg layers soften and flow to fill voids within the layers.

known good board (KGB) A correctly operating PCB. It is used in learning or debugging a test program in development and for comparison testers where it serves as the standard unit by which other PCBs are compared.

known good die The semiconductor dice that have been tested and are known to function to specification. Also, a die used in testing other dice.