Silicon, Circuits, and the Digital Revolution

Lithography

Schematic of npn transistor (viewgraph)
Schematic of diffusion doping procedure (viewgraph)
Slide show of doping steps for fabricating feature on silicon

What limits the number of transistors on an integrated circuit?
Why put more transistors on an integrated circuit?
Why not make just make the integrated circuits bigger to get more transistors on them?
Slide show on Integrated Circuit Yield

Comments, suggestions, or requests to ghw@udel.edu. "http://www.physics.udel.edu/~watson/scen103/colloq2000/lithography.html" Last updated April 20, 2000. © George Watson, Univ. of Delaware, 2000.