The heat sink and cold side mounting surface should be made out of materials that have a high thermal conductivity (i.e., copper or aluminum) to promote heat transfer.
(The heat sink and cold side mounting surface; should be made; out of materials) (materials; have; a high thermal conductivity (i.e., copper or aluminum) to promote heat transfer)
The heat sink and cold side mounting surface materials
should be made have
out of materials
a high thermal conductivity (i.e., copper or aluminum) to promote heat transfer