An electronic assembly comprising:
- a) a plurality of electronic flexible circuit sub-assemblies made of a plurality of flexible circuits with electronic components mounted on each said flexible circuit;
- said flexible circuit sub-assemblies further comprising holes that align said flexible circuit sub-assemblies when making electrical connections between the each said flexible circuit sub-assembly;
- and
- b) an enclosure that contains said plurality of electronic flexible circuit sub-assemblies made of said plurality of flexible circuits with electronic components mounted on each said flexible circuit, wherein some portion of liquid, and some portion of gas are contained within said enclosure;
- said enclosure further comprising a plurality of predominantly hollow towers extending in a plurality of different directions in three dimensional space, each of said towers containing at least one chamber.