Artifact Details


Ruegg patent notebook (#507)

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This volume contains work on read diodes continued from Ruegg (198); microstrip ICs for microwave frequencies (p. 9); high-current gain transistor for very low current levels pg. 20); microwave diode with integrated capacitor (p. 24); a punch-through microwave negative resistance diode, see TR286, (p. 42); and avalanche light sources (p. 61).




Ruegg, Heinz W.

Biographical Notes

Heinz W. Ruegg was born in Zurich, Switzerland, in 1935. He received the Diploma in Electrical Engineering from the Swiss Federal Institute of Technology, Zurich (1959), the M.S. degree from the California Institute of Technology in Pasadena (1961) and the Ph.D. degree from Stanford University in Stanford, California (1966). From 1960 to 1961 he was a Graduate Research Assistant at the California Institute of Technology, working on thin magnetic films. In 1961 he joined Fairchild Semiconductor in Palo Alto, California, and worked on the characterization of Micrologic. With R.H. Beeson he co-authored the 1962 ISSCC paper “New forms of all-transistor logic” that included one of the first published diagrams of the Transistor Transistor Logic (TTL) circuit that formed the workhorse digital IC family of the 1970s. In 1962 he led the development of linear integrated circuits and performed exploratory research on solid-state microwave devices. A 1966 organization chart shows him as a Member of the Technical Staff in the Exploratory Devices Section of the Solid State Physics Department reporting to C. Bittmann. He joined Faselec AG in Zurich, Switzerland, to work on low power circuits for watches in 1967.


Fairchild Semiconductor

Identifying Numbers

Document number 507


Approximately 17 dated entries over 68 pages.


12 x 10 inches



Collection Title

Fairchild Semiconductor notebooks and technical papers


The author contributed to the following R&D Technical Reports (TR) and papers in professional publications during his service at Fairchild:

TR120 Vacuum deposited nichrome films (1963-05-24).

TR178 An unstable chopper transistor or an adaptive element? (1964-05-26).

TR231 The inductance MOST (1965-11-01).

TR286 A punch-through, microwave, negative-resistance diode (1967-02-17).

Beeson, R. and Ruegg, H. New forms of all-transistor logic. 1962 IEEE International Solid-State Circuits Conference: Digest of Technical Papers, vol. V (1962): 10-11.

Rodriguez, V., Ruegg, H. and Nicolet, M. A. Measurement of the drift velocity of holes in silicon at high-field strengths. IEEE Transactions on Electron Devices, vol. 14, iss. 1 (1967): 44-46.

Ruegg, H.W. A fast, high-gain silicon photodiode. 1966 IEEE International Solid-State Circuits Conference: Digest of Technical Papers, vol. IX (1966): 56-57

Ruegg, H.W. An integrated analog switch. 1964 IEEE International Solid-State Circuits Conference: Digest of Technical Papers, vol. VII (1964): 50-51.

Ruegg, H.W. An integrated FET analog switch. Proceedings of the IEEE, vol. 52, iss. 12 (1964): 1572-1575.

Ruegg, H.W. An optimized avalanche photodiode. IEEE Transactions on Electron Devices, vol. 14, iss. 5 (1967): 239-251.

Ruegg, H.W. A proposed punch-through microwave negative-resistance diode. IEEE Transactions on Electron Devices, vol. 15, iss. 8 (1968): 577-585.


Gift of Texas Instruments Incorporated

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