The invention relates to a method for producing electronic components consisting in carrying out a first anodization of a carrier material for forming at least one first pore extending in a first direction in said carrier material and in carrying out a second anodization for forming at least one second pore extending in the carrier material in a second direction different from the first direction. The invention provides a pressing mechanism of an ultrasonic vibrator for pressing sliding members against a driven member, the sliding members being provided at two or more positions corresponding to antinodes of a standing wave vibration of the ultrasonic vibrator. A plurality of cylindrical shaped barbs extending out from said cylindrical rod with a flanged half circle nail head at the end of each barb formed about the central cylindrical rod, extended outward and upward at an angle, oriented around the lower portion of the central cylindrical rod, spaced equally in circular, spiral, descending order for maximum extraction resistance. A waveguide is optically coupled to the input coupler. The orifice 32 is circumscribed by the seal surface 31. In one embodiment, one liner provides various \u201clegs\u201d of liner material and the other liner provides various open receptacle areas, into which such legs may come to rest when the liners are slid together andor rotated relative to one another.