A surface treatment, especially for titanium and aluminum alloys, forms a pigmented sol-gel film covalently bonded on the metal surface to produce desired color, gloss, reflectivity, electrical conductivity, emissivity, or a combination thereof usable over a wide temperature range. This will realize accurate calibration of an array antenna, irrespective of antenna element interval deviation. , the maximum temperature recommended by the USDA for storage of food, 4) the appliance air temperature has been greater than 40 degrees F. The shield electrode is connected to the shield. A pair of substantially oppositely located cutouts is formed in the clip, each providing an extending flap projecting away from the clip. A front edge line portion of the via facing the routing line is substantially straight, has a concave curvature or has a convex curvature of a diameter greater than a maximum lateral dimension of the via.