Patent ID: 8987769
Filing Date: 2015-03-24
Classification: H01L,H05K

Abstract:
1. A submount for the attachment of a semiconductor device, the submount having heat dissipating and thermal conducting properties and at least the following constituent layers: a substrate formed of a material with thermal conductivity greater than 130 W/(m.K); an isolation layer disposed on at least a region of the substrate, wherein the isolation layer is conformal with the substrate and is formed with controlled stress using a low temperature deposition technique, where the isolation layer has a thickness of between 50 nm and 50 microns and comprises an electrically insulating material with an electrical breakdown voltage of at least 0.5kV and a thermal conductivity greater than 130 W/(m.K); and a patterned electrically conductive circuit layer disposed on at least a region of the isolation layer.