1. Int. Solid State Circuit Conf.;Inoue,1988
2. 17th Symp. Ion Implantation and Submicron Fabrication;Shukuri,1986
3. Technical Digest, Int. Electron Devices Meeting;Fair,1987
4. these Proceedings 7th Int. Conf. on Ion Implantation Technology;Tamura,1989
5. 1987 Symp. on VLSI Technology, Digest of Tech. Papers;Miyake,1987