Forward Bias Junction

Forward Bias Junction: Forward Bias Junction – Consider the effect of an external bias voltage applied with the polarity shown in Fig. 1-23; positive on the p-side, negative on the n-side. The holes on the p-side, being positively charged particles, are repelled from the positive terminal and driven toward the junction. Similarly, the electrons on […]

Reverse Bias Junction

Reverse Bias Junction: Reverse Bias Junction – When an external bias voltage is applied to a pn-junction, positive to the n-side and negative to the pride, electrons from the n-side are attracted to the positive terminal, and holes from the p-side are attracted to the negative terminal. As shown in Fig. 1-21, holes on the […]

PN Junction

PN Junction – Junction of p-Type and n-Type: Two blocks of PN Junction semiconductor material are represented in Fig. 1-17; one block is p-type material, and the other is n-type. The small circles in the p-type material represent holes, which are the majority charge carriers in p-type. The dots in the n-type material represent the […]

P Type and N Type Semiconductor

P Type and N Type Semiconductor: P Type and N Type Semiconductor – Doping – Pure semiconductor material is known as intrinsic material. Before intrinsic material can be used for device manufacture, impurity atoms must be added to improve its conductivity. The process of adding the atoms is termed doping. Two different types of doping […]

Conductors and Insulators,Semiconductors

Conductors and Insulators,Semiconductors: Bonding Forces Between Atoms-Whether a material is a Conductors and Insulators,Semiconductors depends largely upon what happens to the outer-shell electrons when the atoms bond themselves together to form a solid. In the case of copper, the easily detached valence electrons are given up by the atoms. As illustrated in Fig. 1-10, this […]

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