NOVELTY - A fuel cell (80) includes: (i) a dielectric substrate material having upper and lower surfaces; (ii) a porous film on the upper surface of the substrate; and (iii) channel extending through the dielectric material from the upper to the lower surface. The porous film comprises an electrode(s).    USE - Used as fuel cell.    ADVANTAGE - The fuel cell is more compact and durable than the conventional fuel cells.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for the following:    (1) a bipolar fuel cell comprising two of the above interconnected fuel cell units;    (2) making of an electroprocessed, porous film by providing a support substrate, forming a film on the support substrate, and etching pores in the film;    (3) making of silicon-based electrode by etching the silicon-based substrate, and anodizing the substrate to form pores on the substrate;    (4) embossing a substrate by forming a film of on substrate, patterning features of the film, providing a second substrate, and embossing feature of the film into the second substrate;    (5) making of a mold by patterning a silicon substrate, and contacting the substrate with a deformable material to impart the pattern to the material;    (6) a lithography processing of a substrate wafer by disposing a film on a clean wafer, disposing a photoresist layer onto the film, masking the photoresist layer with a geometric array, exposing, developing, and rinsing the masked photoresist layer, and etching the layered wafer;    (7) a packaging method comprising evaporating gold, depositing the gold onto a ceramic package, and attaching an electrode to the ceramic package with a gold conductive epoxy; and    (8) a manufacturing process comprising providing a wafer, and forming at least two fuel cells on the wafer.    DESCRIPTION OF DRAWING(S) - The figure is a diagram of the planar fuel cell.    Fuel cell (80)    Anode and cathode array (82)    Membrane (84)    Fuel cell source (86)    Moisture cap (88)