PATENT COVER GRAPHIC


United States Patent 3,461,323
August 12, 1969

Negative Resistance Semiconductor Device
Charles O. Mulford

Filed February 8, 1968
Image of US PATENT 3,461,323

Abstract of the Disclosure

An elongated semiconductor device in which contacts are placed across the junction at both ends and a plasma effected by exciting the holes and electrons present in the P and N material to energize the electrons of the bonding atoms of the crystal to the conduction band.
Figure descriptions: cover graphic

  • Figure 1 is a sectional view of a device embodying the invention.
  • Figure 2 is a test circuit used to illustrate the invention.
  • Figure 3 is a curve illustrating the invention.
  • Figure 4 is a sectional view of a device illustrating another embodiment of the invention.
  • Figure 5 is a test circuit used to illustrate the performance of the device of Figure 4.

 Citations [54]:
  
3,158,746 11/1964 Lehovec 3,283,221 11/1966 Heiman
National Museum of American History
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