Hermann K. Gummel (6 July 1923 – 5 September 2022) was a German physicist and pioneer in the semiconductor industry.
[1][2] The son of Hans and Charlotte Gummel, he was the middle of their three children, Bärbel and Achi being respectively his older sister and his younger brother.
[4] At Bell, Gummel made important contributions to the design and simulation of the semiconductor devices used throughout modern electronics.
Gummel also created one of the first personal workstations, based on HP minicomputers and Tektronix terminals and used for VLSI design and layout, and MOTIS, the first MOS timing simulator and the basis of "fast SPICE" programs.
[6] In 1985, Gummel was elected to the United States National Academy of Engineering for "contributions and leadership in the analysis and computer-aided design of semiconductor devices and circuits.".