Seagate's Londonderry plant will become the company's main manufacturing facility and a development site for hard drives. The company said it will extensively invest in nanotechnology, including new cleanrooms, at the nanotech research and manufacturing facility.More info over here.
The second Seagate plant in Northern Ireland, at Limavady, will produce a wider range of aluminium substrates for integration into Seagate's hard drive products for desktop computers and business servers.
Seagate invests $300 million in nano technology

Seagate announced it will invest more than $300 million at its two manufacturing fabs in Northern Ireland over the next four years.