1. , US patent 5,563,084 (1995)
2. , P4400985. 2 German Patent
3. et al., Proc. 23rd Annual Tegal Plasma Seminar (1997) 53 and references therein
4. et al., Symp. on VLSI Tech. Dig. (1996) 28
5. et al., Proc. 2nd Int. Symp. on Plasma Process-Induced Damage (P2ID) (1997) 221