1. The early history of microcircuitry: An overview;Brock D.C.;IEEE Annals of the History of Computing,2012
2. Buie J.J.(1966).Coupling transistor logic and other circuits. Patent US3283170.
3. CHM (Computer History Museum)(1960).The Silicon Engine Timeline 1960: First planar integrated circuit is fabricated[Online]. Available at:http://www.computerhistory.org/semiconductor/timeline.html.
4. CHM (Computer History Museum)(1962).The Silicon Engine Timeline 1962: Aerospace systems are first. Applications for ICS in computers[Online]. Available at:http://www.computerhistory.org/semiconductor/timeline.html.