The present invention provides a semiconductor structure comprising high-k material portions that are self-aligned with respect to the active areas in the semiconductor substrate and a method of fabricating the same. The measuring electrode includes an oxide portion and a noble metallic portion. The cable trays may be arranged in a tiered-manner such that cable receiving portions of the cable trays extend farther than an adjacent cable tray in a longitudinal direction. An operation may be executed or transacted between the client and the server. The top edge of the tongue is provided with a projecting locking lip running in the longitudinal direction of the tongue, and there is a corresponding locking recess running in the longitudinal direction of the groove in the bottom edge of the groove-boundary-forming top groove cheek.