In response to TSMC's 40nm yield issues, Chang said rates have improved from 30% to 60%. The foundry expects to process around 30,000 wafers on 40nm in the third quarter, Chang noted.
TSMC revealed in its second-quarter financial report that 40/45nm has surpassed 1% of its total wafer sales, with shipments tripling from those in the first quarter. The company, in early July, also issued a statement announcing it had cumulatively shipped over five million 12-inch equivalent wafers processed with sub-0.13-micron processes, of which, several thousand were manufactured on 40nm.
TSMC claims 40nm yields have improved to 60 percent
Posted on Friday, July 31 2009 @ 20:41 CEST by Thomas De Maesschalck