1. Sparkes, C, DiSessa, P., “Technical Advances and Applications for Laser Microlithography in the 90's,” GCA, A Unit of General Signal, Andover, MA.
2. “IC Fabrication Technology” Second Edition;Elliott,1989
3. SEM photo, courtesy of Shipley Company, Newton, MA.
4. Model supplied by L.K. White, RCA, Princeton, NJ