A dispensing apparatus for delivering fluid or liquid to a container, has a container holding device and a fluid delivery system delivering fluid to a dispensing outlet under control of an actuation member, which causes the fluid delivery system to deliver fluid in response to movement of the actuation member from its start position. The device comprises a hollow cannula with an end portion arranged to be inserted into the intervertebral disc, the body of vertebra or any other part of the disc. Other embodiments include apparatuses, systems, devices, hardware, methods, and combinations for leaching systems. A copper thickness target and polish time for the first wafer is determined.