A fluid conduit wall enclosing a hollow interior for the flow of fluid includes an outer surface provided with a low emissivity coating having a coating emissivity of less than 0. In one embodiment, a power laminate may be mounted to a printed circuit board. When it is required that the LSI is to be connected with an external circuit by wire bonding, the first junction is connected with the external circuit usina a wire. The first member and the second member can be rotated between 0 and 180 degrees with respect to each other to accommodate marking a line on the two intersecting planes.