TECHNOLOGY FOCUS - ELECTRICAL POWER AND ENERGY - Preferred Method: The first and second laser beams are generated by a: common laser apparatus; different laser apparatus; or pulsed laser having a pulse frequency of 0.1-1000 kHz during a portion of the first and second passes. In the method, a dose of radiant energy 0.01-50 J/cm2 is delivered during a portion of the first pass or a portion of the second pass. Preferred Components: The second pass comprises many laser beam passes.    TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The common layer is a conductive layer, which comprises: aluminum, molybdenum, tungsten, vanadium, rhodium, niobium, chromium, tantalum, titanium, steel, nickel, platinum, silver, gold and/or their alloys; or indium tin oxide, titanium nitride, tin oxide, fluorine doped tin oxide, doped zinc oxide, aluminum doped zinc oxide, gallium doped zinc oxide, boron doped zinc oxide indium-zinc oxide, metal-carbon black-filled oxide, graphite-carbon black-filled oxide, carbon black-carbon black-filled oxide, superconductive carbon black-filled oxide, an epoxy, conductive glass or conductive plastic. The substrate has a Young's modulus of greater than or equal to 20 GPa, preferably greater than or equal to 70 GPa, and is made of a linear material, where all or a portion of the substrate: is a rigid tube or a rigid solid rod; or has a circular cross-section, an ovoid cross-section, a triangular cross-section, a pentangular cross section, a hexagonal cross-section, a cross-section having at least one arcuate portion, or a cross-section having at least one curved portion. The first and second portions of the substrate have first and second cross-sectional shapes, respectively, where the first and second cross-sectional shapes are the same or different. In the substrate: at least 60% of the length has the first cross-sectional shape; and the first cross-sectional shape is planar and the second cross-sectional shape has at least one arcuate side. EXAMPLE - No suitable example given.