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p-n Junction Diode
Basic device technology Structure and principle of operation Electrostatic analysis of a p-n diode –Depletion region and depletion capacitance –Abrupt junction –Linearly graded junction Current - voltage characteristics –Shockley equation –Generation-Recombination Process –High injection –Diffusion capacitance Reverse bias breakdown –Thermal instability –Tunneling effect –Avalanche multiplication Transient behavior
Structure and principle of operation
Energy band diagram of a p-n junction (a) before and (b) after merging the n-type and p-type regions
Energy band diagram of a p-n junction under reverse and forward bias
General discussion - Poisson's equation Não é trivial de resolver!
The full-depletion approximation
1. Região de carga espacial 2. Nível de Fermi em equilíbrio 3. Built-in voltage 4. Built-in voltage e densidade de dopantes 5. Largura da região de carga espacial 6. Capacitância de depleção
The linearly graded p-n junction
The p-n diode current The ideal diode current
p-n Junction Diode Exemplos e Exercícios
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