Patent ID: 6278051
Filing Date: 2001-08-21
Classification: G01K,H01L

Abstract:
A differential thermopile heat flux sensor, comprising:(a) an electrically insulating substrate made of a material which has high thermal conductivity;(b) a first layer disposed above said electrically insulating substrate, said first layer comprising (1) insulating material and (2) a plurality of thin raised metal pads covering a part of the surface of said substrate;(c) a second layer disposed above said first layer, said second layer comprising (1) insulating material and (2) a plurality of metal links;(d) a third layer disposed above said second layer, said third layer comprising (1) insulating material and (2) a plurality of metal links interconnecting said links of said second layer;(e) a fourth layer disposed above said third layer, said fourth layer comprising (1) insulating material and (2) a plurality of metal pads; and(f) a top layer disposed above said fourth layer made of a thin layer of high thermal conductivity material.