As many of you will have probably noticed, there is lots of coverage of the emergence of epitaxial GaN on silicon substrates. And a variety of application areas have been discussed, such as for high-brightness LEDs & power devices. But could there be potentially more areas of application? The substrates are Si <111> which is not ideal for mainstream CMOS devices - but perhaps you have other ideas? Pls let us know what you think by writing your own blog on the subject, as a reply to this piece pls. & thanks for your interest.!!