title: Point contacts
text: # Point contacts
  
  Point contacts may refer to:
  
  * Contact breaker, a type of electrical switch
  * Point contact diode, a type of semiconductor diode
  * Point of contact, a person serving as the focal point of information concerning an activity
  * Point-contact transistor, the first type of solid-state electronic transistor ever constructed, in 1947
  * Quantum point contact, a narrow constriction between two wide electrically conducting regions
  