Patent ID: 6376268
Filing Date: 2002-04-23
Classification: G02B,H01L

Abstract:
A method of making an optoelectronic assembly comprising:a) selecting an insulating substrate with a planar surface; b) bonding a metal layer to said planar surface such that selected regions of said insulating substrate are exposed and a step is produced between said insulating substrate and a top surface of said metal layer; c) mounting an active optical device having a first optical axis on said metal layer such that said first optical axis is parallel to said insulating substrate, and such that said metal layer provides an electrical path to said active optical device; d) selecting a predetermined thickness for said metal layer such that: i) heat generated by said active optical device is dissipated; ii) said insulating substrate does not interfere with the propagation of light along said first optical axis; and iii) the in-plane coefficient of thermal expansion (CTE) of said metal layer is constrained by said insulating substrate, such that said metal layer inherits the in-plane CTE of said insulating substrate.