Author :
Schwarzenbach, W. ; Cauchy, X. ; Bonnin, O. ; Boedt, F. ; Butaud, E. ; Moulin, C. ; Kerdiles, S. ; Gilbert, J.-F. ; Daval, N. ; Aulnette, C. ; Girard, C. ; Oshimi, M.Y. ; Maleville, C.
Abstract :
Ultra Thin Body Devices are a way to solve technical challenges requested by advanced digital technology nodes. Combined with planar CMOS approach, they lead to the need for Ultra-Thin SOI (UTSOI) wafers. These 300 mm ultra-thin SOI layer are now available with silicon target thickness at 12 nm, controlled within a few angström range from Wafer to Wafer to Transistor level.Ultra-Thin SOI & BOX (UTBOX) substrates with 25 to 10 nm BOX are developed in parallel to UTSOI and will show similar SOI layer uniformity.