Ultra low loss millimeter wave MCM interconnects

We present the design and development of ultra low loss and high density organic interconnect packaging technology at millimeter wave frequencies. Various microstrip passive components have been designed and characterized to demonstrate that the high density organic interconnect approach is suitable for W-band (75 GHz-110 GHz) packaging. The loss of the organic interconnects has been found to be comparable with that of microstrip lines on alumina substrates at W-band frequencies.