an upper surface with a plurality of reinforcing ribs 62 and a body 60 formed in the body 60 is a corrugated spring 64 the ends 66 of the spring 64 may be held within the body 60 for example by molding the spring 64 into the body 60 when the body 60 is pressed against the converter 12 the spring 64 vees are compressed applying a uniform force through the body 60 to the converter 12 in one embodiment the spring 64 may be formed of beryllium copper it may be shaped in a corrugated shape with a plurality of vees extending into the 39 spring 64 from above and below each of the vees may form a v shaped compression spring pressed against either the body 60 or the converter 12 the arrangement of the corrugated spring 64 serves to make more uniform the forces applied through the body 60 ideally the housing 58 supplies a substantially constant pressure over the life of the system 10 the spring 64 may be defined with the cold flow properties of the related substrates over time in mind the housing 58 may be formed of extruded aluminum or plastic as two examples in one embodiment the housing 58 may be hinged and latched to clear the contact region and to allow for z axis assembly or replacement of components while providing a registration feature to align the underlying substrates sandwiched between the converter 12 and the processor carrier 18 is a relatively low profile conductive polymer interconnect 68 including a polymer film.