An electrical connector having a front end for attachment to a terminal and a back end for attachment to a coaxial cable includes a body, a post mounted within the body; and a contact assembly movably mounted within the post. The lower wall of the liquid collection chamber is provided with a substantial circular ridge around the location where the tea hits the lower wall of the liquid collection chamber. In one step, a foundation block for the integrated circuit is specified, including specifying the locations of multiple androgynous interfaces in the integrated circuit.