A snow ski has at least one channel formed in the running surface to expose the inner sides of the ski edges for translating the force exerted by the ski during a turn and creating positive engagement with the skiing surface. The diode comprises a second zone including on the substrate a thick strip conductor bearing at least second solder bumps, said first and second solder bumps defining a plane parallel to the substrate plane. A transmission line is formed on the top surfaces of each of the ceramic layers having a beginning end and a distal end and has a generally rectangular shape. Attachment elements on the mast may be formed by one or more attachment structures or points.