In a bulk process, particularly for very potent chemicals such as some steroids, the issue of by-products needs to be considered if equipment is not dedicated.

Samsung said the bulk process has completed reliability testing at its 300-mm logic fabrication line in Giheung, South Korea and, is now ready for production of customer designs.

Not surprising that up until at least the end of October last ATI was convinced (perhaps, not completely) about TSMC's ability to ramp up production of GPUs using 32nm bulk process technology in 2010.