A cooling device includes a flow-path substrate, an intermediate substrate, and a lid-substrate each made of a polyimide resin, and a condenser substrate incorporated into holes of the intermediate substrate and an evaporator substrate which are made of a metal having a high thermal conductivity, whereby...http://www.google.de/patents/US6785135?utm_source=gb-gplus-sharePatent US6785135 - Cooling device, electronic apparatus, display unit, and method of producing cooling device