Intangibles Assets, net	3 Months Ended
Intangibles Assets, net	Jun. 30, 2012
Goodwill and Intangible Assets Disclosure [Abstract]
Intangibles assets, net	Intangibles Assets, net On June 26, 2012, we entered into a patent assignment agreement with International Business Machines Corporation (“IBM”), a customer of ours. We acquired the rights to a collection of patents and patent applications from IBM, including patents and patent applications in packaging such as C4 bumping, Ball Grid Arrays, lead-free solders and 3D packaging. Representing both U.S. and foreign patents, the portfolio includes claims directed at methods of making, at compositions and at structures of semiconductor devices. We paid $8.0 million for the rights to the patents and patent applications.

The entire disclosure for all or part of the information related to intangible assets.