Disclosed is a method and structure for forming a split-gate fin-type field effect transistor. The housing is configured for a coolant to flow from the coolant inlet through the compartment to the coolant outlet, wherein the coolant is transferring heat extracted from one or more electronic components. A rear portion is affixable to a retaining block. Movement of the structure of interest in between the two X-ray exposures is allowed. The carbon nanotubes and chloroform comprise the filler and the silicone thermal grease comprises the matrix.