Tunnel diode
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A tunnel diode or Esaki diode is a type of semiconductor diode that has effectively "negative resistance" due to the quantum mechanical effect called tunneling. It was invented in August 1957 by Leo E
1N3716 tunnel diode (with 0.1" jumper for scale)
10 mA germanium tunnel diode mounted in test fixture of Tektronix 571 curve tracer
8–12 GHz tunnel diode amplifier, circa 1970
I vs. V curve of 10 mA germanium tunnel diode, taken on a Tektronix model 571 curve tracer.
Leo Esaki
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Leo Esaki is a Japanese physicist who shared the 1973 Nobel Prize in Physics with Ivar Giaever and Brian Josephson for his work on tunneling in semiconductors, which led to his invention of the tunnel
Tunnel diode
…semiconductor diode that has effectively "negative resistance" due to the quantum mechanical effect called tunneling. It was invented in August 1957 by Leo Esaki and Yuriko Kurose when working at Tokyo Tsushin Kogyo, now known as Sony. In 1973, Esaki received the Nobel Prize in Physics for experimental demonstration…
Esaki in 2020