Patent ID: 7558071
Filing Date: 2009-07-07
Classification: B41J,H01L,H05K

Abstract:
1. A substrate mounted with an electronic element thereon, the substrate comprising: a base made of a metal; an insulator made of a ceramic material and provided on one face of the base, the insulator having a heat-generating electronic element mounted on its side facing contrary to the one face; a fluid passage that is formed within the base to have liquid flow therethrough, and radiates heat which has been transmitted from the electronic element via the insulator to the base; and a pressurizer that applies pressure to the liquid within the fluid passage, wherein the pressurizer includes: a pressurizing chamber that is formed within the fluid passage; and an actuator unit that changes a volume of the pressurizing chamber by displacing a portion of the insulator corresponding to the pressurizing chamber with respect to a direction perpendicular to the one face.