Patent ID: 9166083
Filing Date: 2015-10-20
Classification: H01L,H05K

Abstract:
1. A substrate assembly comprising: A. a planar substrate formed of an electrical and thermal insulating material; B. an integrated circuit seat formed on a top surface of the substrate, the seat including contact pads and traces extending from the contact pads; and C. an isothermal cage in the substrate that substantially surrounds the seat, the cage including thermal conductors in the substrate at the periphery of the cage with the thermal conductors at different levels in the substrate, the isothermal cage including a conductive dot at the center of the integrated circuit seat, the conductive dot having a top surface at the top surface of the substrate and a portion extending part way into the electrical and thermal insulating material of the substrate, the conductive dot being connected to a contact pad by one of the traces at one of the levels in the substrate.