Siegfried K. Wiedmann (born in 1938) is a German

electrical engineer Electrical engineering is an engineering discipline concerned with the study, design, and application of equipment, devices, and systems which use electricity, electronics, and electromagnetism. It emerged as an identifiable occupation in the ...

noted for his contributions to

semiconductor A semiconductor is a material which has an electrical conductivity value falling between that of a conductor, such as copper, and an insulator, such as glass. Its resistivity falls as its temperature rises; metals behave in the opposite way. ...

technologies for integrated circuits. Wiedmann was born in

Plochingen Plochingen ( Swabian: ''Blocheng'' or ''Blochenga'') is a town in the district of Esslingen in Baden-Württemberg in southern Germany. It lies on the river Neckar, on which it has a river port. With about 14,000 inhabitants, it is part of the Stu ...

, Germany. He received the Diplom-Ingenieur (1963) and Doctor-Ingenieur (1967) degrees in electrical engineering from the

University of Applied Sciences Stuttgart The Hochschule für Technik Stuttgart - University of Applied Sciences (german: Hochschule für Technik Stuttgart, HFT Stuttgart) is one of ten institutes for higher education in Stuttgart Stuttgart (; Swabian: ; ) is the capital and large ...

, then worked at the IBM Laboratories in

Böblingen Böblingen (; Swabian: ''Beblenga'') is a town in Baden-Württemberg, Germany, seat of Böblingen District. Sindelfingen and Böblingen are contiguous. History Böblingen was founded by Count Wilhelm von Tübingen-Böblingen in 1253. Württ ...

Germany Germany, officially the Federal Republic of Germany (FRG),, is a country in Central Europe. It is the most populous member state of the European Union. Germany lies between the Baltic and North Sea to the north and the Alps to the sou ...

and in the United States, ultimately becoming an

IBM Fellow An IBM Fellow is an appointed position at IBM made by IBM's CEO. Typically only four to nine (eleven in 2014) IBM Fellows are appointed each year, in May or June. Fellow is the highest honor a scientist, engineer, or programmer at IBM can achie ...

. Together with Horst H. Berger, Wiedmann received the 1977 IEEE Morris N. Liebmann Memorial Award "for the invention and exploration of the Merged Transistor Logic, MTL".

Selected works

* H. H. Berger and S. K. Wiedmann, "Merged-Transistor Logic (MTL) - A Low-Cost Bipolar Logic Concept", IEEE Journal of Solid-State Circuits, vol. SC-7, No. 5, Oct. 1972, pp. 340–346.

References

High-Speed Split-Emitter 12L/MTL Memory Cell
{{DEFAULTSORT:Wiedmann, Siegfried K. 1938 births Living people People from Esslingen (district) German electrical engineers IBM Fellows Engineers from Baden-Württemberg