Future Prospects of Diamond in High Power MMW Application

Use of Diamond for electronic applications was started for development of photoconductive detectors. However limitations in size and control of properties naturally limited the use of Diamond to a few specialty applications. With the development of Diamond synthesis from vapour phase has come a more serious interest in developing diamond based electronic devices. Diamond (band gap energy = 5. 6 eV at 300K) supports peak internal electric field about 6 times higher than those of Si and GaAs, resulting in higher breakdown voltage, which is extremely important for devices handling high power. Another consequence of higher electric field and higher doping density is the width reduction in the drift region. Thus, not only high