TSCM believes demand for next-generation 20nm chips will be even higher than demand for current 28nm products.

Speaking in a conference call, TSMC CEO Morris Chang said the volume of 20nm SoCs built next year will be greater than 28nm volume in 2012 and by 2015 it should be greater than 28nm volume in 2013.

TSMC hopes to start 20nm production in the latter part of the year. The company is constructing two new facilities at Fab 15 and it hopes to start 20nm production in both simultaneously. We could be in for a quick ramp.

TSMC will offer only one version of the 20nm process, compared to four versions of the 28nm process. This should also allow it to ramp up volume production faster, reckons Xbit Labs.

More here.