Quantum CAD are currently researching some aspects of printed electronics.
RFID (Radio-Frequency identification) lends itself to printed electronics but currently, the printing of microprocessors and batteries are difficult. Coin batteries still power most RFID solutions.
Antennae, Discretes, Sensors & Interconnects are currently manufacturable and have been used for some time.
The main reasons for using printed components are cost, flexibility, size and end of life disposal.
With continued research, Quantum (along with partners) aim to develop printed ink solutions where nanosized metallic particles are dispersed onto different substrates.
The potential of ink-jet printing is important but the challenge to date has been how to achieve prints of low volume resistivity.
In the future, ink-jet printing techniques will be used to directly deposit metallic conductive patterns to produce wiring boards, antennae etc..