Patent ID: 7425877
Filing Date: 2008-09-16
Classification: H01L

Abstract:
1. A Lange coupler system comprising: (a) a thin film hybrid substrate; (b) a lower bridge conductor, electrode, and interconnect layer formed on said thin film hybrid substrate, said layer further comprising a lower adhesive layer and an upper conducting layer having a sum total thickness less than or equal to 1.5 microns; (c) a dielectric layer deposited on top of the said patterned lower electrode and interconnect layer; and (d) an upper electrode layer further comprising interdigitated fingers formed on said dielectric layer; wherein said upper conducting layer is approximately 0.25-1.40 microns thick; said upper conducting layer forms electrical connections between said interdigitated fingers; said interdigitated fingers when connected to said upper conducting layer form a Lange coupler structure.