Generally the term " ohmic contact " implicitly refers to an ohmic contact of a metal to a semiconductor, where achieving ohmic behaviour is possible but requires careful technique.
22.
Generally the term " ohmic contact " implicitly refers to an ohmic contact of a metal to a semiconductor, where achieving ohmic behaviour is possible but requires careful technique.
23.
For the junction to admit electrons easily in both directions ( ohmic contact ), the barrier height must be small in at least some parts of the junction surface.
24.
Low-resistance, stable ohmic contacts to semiconductors are critical for the performance and reliability of semiconductor devices, and their preparation and characterization are major efforts in circuit fabrication.
25.
However, ohmic contact resistance heating is generated when peak current flows through these individual microscopic contacting points, which are critical areas for the overall internal resistance of the capacitor.
26.
Polysilicon may also be employed as a resistor, a conductor, or as an ohmic contact for shallow junctions, with the desired electrical conductivity attained by doping the polysilicon material.
27.
Different semiconductors exhibit this Fermi level pinning to different degrees, but a technological consequence is that ohmic contacts are usually difficult to form in important semiconductors such as silicon and gallium arsenide.
28.
Both ohmic contacts and Schottky barriers are dependent on the Schottky barrier height, which sets the threshold for the excess energy an electron requires to pass from the semiconductor to the metal.
29.
The probes produce a negligible probe to silicon resistance ( nearly ohmic contact ) over the entire resistivity range for both n-type ( rich in holes and rich in electrons respectively ).
30.
Not all metal semiconductor junctions form a rectifying Schottky barrier; a metal semiconductor junction that conducts current in both directions without rectification, perhaps due to its Schottky barrier being too low, is called an ohmic contact.
