Abstract: A sputter coating apparatus target includes an elongated cathode having an upper support surface, sputter target material disposed upon the upper cathode surface, and a ground shield having a box-like construction. The ground shield includes a bottom wall and side walls containing the cathode therein in an enclosed state and an open top defined by the side walls adjacent to the upper cathode surface placing the target material in an exposed state. Also, blocks are provided for supporting the cathode within the shield in a spaced electrically insulated relationship relative to the shield such that a gap is defined between the cathode and the bottom and side walls of the shield.

Abstract: Gas electrodes which contain a hydrophilic layer are disclosed. The hydrophilic layer is adapted to provide a gas-liquid interface therein; and includes an oxygen absorption/reduction material selected from the group consisting of CaMnO.sub.3 and Ca.sub.(1.sub.-x.sub.-z) MnO.sub.3 :Na.sub.x,Y.sub. z and a current collector. A hydrophobic layer can then be laminated to the hydrophilic layer.