Abstract: An integrated circuit comprises an identification portion having an output representative of one or more bits of digital information identifying the integrated circuit. This identification information may, for example, allow the manufacturer to determine which photolithographic masks were used to manufacture the integrated circuit. The identification portion is formed at least partially by a plurality of metal levels. Modifications to the integrated circuit's identification information are facilitated by designing the identification portion such that its output can be changed by modifying any one metal level among the plurality of metal levels that form it.

Abstract: The nature of the technical disclosure of this invention is a pre-programmed sound component that is embedded in the top portion of a dispensing pump. This feature is novel in the art to which the invention pertains, as there are currently no dispensing pumps that emit sound as pressure is exerted to the top component of the dispensing pump. This audio feature is what sets this invention apart from existing technology.