Patent ID: 9252067
Filing Date: 2016-02-02
CPC Classification: H01L

Claim Text:
1. An amplifier comprising: a heat spreader semiconductor material substrate having a first thickness of about 0.5 mils to about 2.0 mils, and defining first and second surfaces, said first surface supporting a layer of a second semiconductor material having defined therein a planar active transistor arrangement and through vias extending from said second surface of said semiconductor heat spreader substrate to active transistor portions of the transistor arrangement; a layer of thermally conductive material extending over said second surface of said semiconductor heat spreader substrate and into said through vias to make thermal and electrical contact with said active transistor portions, said layer of thermally conductive material having a thickness of about 0.5 mils to about 1.0 mils; first and second matching circuits each defined from a substrate of semiconductor material, said substrate of semiconductor material having a second thickness greater than said first thickness of said semiconductor heat spreader substrate, and not greater than about 4.0 mils; and a heat sink having first and second surfaces and a raised surface portion between said first and second surfaces, wherein said semiconductor heat spreader substrate is mounted on said raised portion of said heat sink and said first and second matching circuits are mounted on said first and second surfaces of said heat sink, respectively.