An electrical cable assembly comprises a back shell defining a pair of receiving slots, an electrical cable received in the back shell, a strain relief member for compression the cable in the back shell, and a back shell cover coupled to the back shell. The first wall defines a first portion of the receiving cavity and a first flange surrounding the first portion of the receiving cavity. The high-temperature deposition together with the CrRuPt seed layer structure provide a very smooth surface for subsequent deposition of the ML. The arm moves the plug backwards and so the plug correctly closes the opening of the frame. and includes a method of electrically heating the raw material films themselves andor a method of thermally treating the films while applying pressure to the films planarly, and the post-planar pressurization step includes a method of planarly pressurizing the one raw material film or the multiple stacked raw material films after graphitization by single-plate press or vacuum press. The upper electrode includes at least a first metal layer and a second metal layer formed on the first metal layer.