Gumel, or Gummel, a town and traditional emirate in Jigawa State, Nigeria
Among the most important of his contributions are the Gummel–Poon model which made accurate simulation of bipolar transisors possible and which was central to the development of the SPICE program; Gummel's method, used to solve the equations for the detailed behavior of individual bipolar transistors,; and the Gummel plot, used to characterize bipolar transistors.
•
Gummel received his Diplom in physics (1952) from Philipps University in Marburg, Germany.