A cylindrical sputtering target including a cylinder of a first material wherein the inner wall of the cylinder has embedded within it a pattern of small pieces of one or more different materials, whereby such target produces a spatially and compositionally uniform coating on a substrate in a cylindrical sputtering process. The transistors of the differential pair, the current mirror, and the follower transistor are operatively coupled such that during operation an amplitude of a signal output from the follower transistor is proportional to an amplitude of an signal input into the differential pair. When the injection process starts, the bottom of the piston aligns with the edge of the repository space and with the wall of the mold cavity so that a small amount of molding material melt reaches the mold cavity directly. An apparatus may be adapted to record and decode the coding pattern. The invention furthermore relates to a cheese product, in particular in the form of a packaged commercial product, that can be processedreconstituted by the end user to give a cheese sauce according to the invention, for example by adding water and optionally by heating. The tab is resilient to return to the first position after the object passes the tab.