Question

How is light emitting diode fabricated?

Answer 1

Answer:

Light emitting diodes are a specialised form of PN junction diode that have been designed to optimise their electroluminescence. To achieve the optimum results, the structure and fabrication processes need to be tailored to ensure that the light output is optimised.

There are a number of different aspects to the LED structure and LED fabrication. These include not only the LED fabrication itself, but also the packaging of the LED once the semiconductor chip itself has been fabricated.

Answer 2

Answer:

Light emitting diodes are made from a very thin layer of fairly heavily doped semiconductor material and depending on the semiconductor material used and the amount of doping, when forward biased an LED will emit a coloured light at a particular spectral wavelength.

Explanation: