Sources at motherboard makers confided to DigiTimes that AMD's Llano APU is unlikely to enter mass production until August or September 2011 due to poor yields of Globalfoundries' 32nm process:
AMD has scheduled two platforms for its new APU - Brazos and Sabine. For the Brazos platform, the company is pushing Ontario processors for netbooks and Zacate processor for mainstream notebooks and the entry-level desktop PC market. The processors are manufactured under Taiwan Semiconductor Manufacturing Company's (TSMC's) 40nm process and are already shipping with about 100 related products to be showcased at CES 2011.
On the other hand, the Sabine platform, with the Llano APU, targets the ultra-thin notebook and, mid-range to high-end notebook and desktop PC markets, are scheduled to be manufactured under Globalfoundries' 32nm process. Since Globalfoundries has been reportedly having issues with its 32nm yield rate, and AMD is said to not be willing to take the risk of manufacturing and producing defective products and generating unnecessary costs, rumors that Llano processor will be delayed have recently started to emerge in the IT market.