79050413
Jan 30, 2008
Apr 14, 2009
Solar cells; silicon wafers for solar cells; semiconductor wafers, namely, compound semiconductor wafers, SOI (Silicon-On-Insulator) wafers, and strained silicon wafers; semiconductor silicon wafers; single-crystal silicon wafers [; ingots of semiconductor silicon for making silicon wafers; single-crystal silicon ingots for integrated circuits ]
Electrical and Scientific Apparatus