A method, machine readable storage medium, and system for providing a self learning semantic search engine. A first integrated circuit die includes a first circuit and a first intra-chip clock interface that transmits a first clock signal via the substrate. The piston rod assembly comprises a piston rod, at least one adjusting member displaceably engaged with a distal end section of the piston rod, wherein the at least one adjusting member is displaceable along a long axis of the piston rod, and at least one interlock member configured to mutually lock the at least one adjusting member and the piston rod in an arbitrary relative axial position.