United States Patent 3,971,056
June 20, 1976

Semiconductor Temperature Switches
Stanley V. Jaskolski
Robert W. Lade
Herman P. Schutten
Gordon B. Spellman
Lawrence E. Van Horn

Filed February 18, 1975
Image of US PATENT 3,971,056

Abstract of the Disclosure

Germanium semiconductor temperature switches are described which are capable of intrinsically switching between high and low resistance states within a temperature range up to 55C, and are adapted for operating at voltages up to 400 volts. These temperature switches are disclosed in various configurations. Basic circuits for adjusting the temperatures at which such switches switch within a range are disclosed. Preferred methods of making the same are also disclosed.
Figure descriptions: cover graphic

  • Figure 1 depicts a form of bilateral semiconductor temperature switch constructed in accordance with the invention.
  • Figure 2 schematically depicts a gate controlled bilateral STS in an energizing control circuit for an electric motor.

 Citations [54]:
3,079,484 02/1963 Schockley et al 3,166,680 01/1965 Kevane et al
National Museum of American History
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