Semiconductors at Glance

Track4: Semiconductors at Glance:

 

A semiconductor is a material that has a resistivity value in between that of a conductor and an insulator. The conductivity of a semiconductor material can be varied under an external electric field. Semiconductor devices include the transistor, many kinds of diodes including the light emitting diode, the silicon controlled rectifier, and digital and analog integrated circuits.The conduction band in the range of electron energy, higher than that of the valence band, sufficient to make the electrons free to accelerate under the influence of an applied electric field and thus constitutes an electric current. The valence band is the highest range of electron energies where electrons are normally present absolute zero. In semiconductors and insulators, there is a band gap above the valence band, followed by conduction band above that. In metals, the conduction band has no energy gap separating it from the valence band. Preparation of semiconductor materials include a combination of process.one process is called Thermal Oxidation. And other process is called photomasks and photolithography.

  • Semi-conductor and micro-electronic materials
  • Smart/intelligent materials/intelligent systems
  • Coatings and surface engineering
  • Testing and evaluation of materials
  • Materials characterization

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Semiconductors at Glance Conference Speakers