On-chip interconnect for mm-wave applications using an all-copper technology and wavelength reduction

Transmission lines are implemented using an all-copper backend developed for RF and microwave applications. Wavelength reduction is used to achieve a Q factor >20 from 20GHz to 40GHz, about three times higher than conventional transmission lines implemented with the same technology. It has 0.3dB/mm loss, and reduces the wavelength of a conventional transmission line by half thereby minimizing the space for on-chip microwave devices.