| http://www.w3.org/ns/prov#value | - When copper is used for the heat absorber 4 and heatsinks 6, it is only necessary to form, between each of the heat absorber 4 and the heatsinks 6, an electrical insulating layer 18 which contains fine particles of an inorganic compound such as silicon dioxide, alumina or chromium oxide and has a thickness as thin as 10-50 ??m or so.
|
