Class 12 Physics Chapter 14 Semiconductor and Electronic devices Handwritten Notes

Semiconductor Revision Class notes PDF

Semiconductor Revision Class notes PDF by Allen Institute. Allen Institute IIT JEE Main Semiconductor class notes PDF Hello, friends Today, we've shared semiconductor class notes for CBSE Class 12 and IIT JEE Main & Advance by Allen Institute Kota. The Semiconductor notes are very helpful for a CBSE Class 12 Student and JEE Main Aspirant because complete theory part is roofed in these notes in conjunction with NCERT Important questions, Allen DPP Questions Sheets with answers question for Previous Year and HC Verma questions. For A CBSE Class 12 Student, these Semiconductor Class notes PDF is extremely useful because detailed explanation on each topic is described in notes PDF. Download CBSE Class 12 Semiconductor Revision Class Notes PDF. Types Covered in Notes Entire Theory Part NCERT Numerical DPP Problems JEE Mains & Advance Previous Year Questions Some Important Terms from Semiconductor Class Notes PDF are given Below.

CBSE Class 12 Physics Semiconductor Revision Class Notes PDF Download. Energy Band within the case of simply isolated atom the electrons in any orbit have definite amount of energy and outer energy electron have more energy than their inner, these certain value of energy is known as energy level, and atom in solid is influenced by closely packed neighboring atoms therefore electrons in any orbit of such an atom have arranged of energies instead of one energy because of electron is revolving under the influence of varied forces therefore the range of energies possessed by an electron is claimed is known as energy band.

The semiconductor features a crystalline structure and formed by a bond. Download JEE Main Semiconductor Revision Class Notes PDF by Allen Institute. N-Type Semiconductor When a Penta-valent semiconductor is added during a pure semiconductor such impurity is known as donor impurity, and free electrons are majority charge carrier and holes are minority charge carrier such type semiconductor is known as semiconductor unit. P-Type Semiconductor When a trivalent impurity is added in semiconductor it's called acceptor impurity or holes. The opening is the bulk charge carrier and thus the electron is minority charge carrier such kind of semiconductor is known as semiconductor unit. P-N Type Semiconductor A PN junction diode is formed on one crystal of semiconductor by injecting P type and N type impurity from opposite ends.
1. because the PN Junction diode is formed majority charge carrier diffused from higher concentrated region to lower concentrated region so a current flows it's called diffusion current, and it flows from P to N.
2. because of Diffusion Electron recombine with the holes near the junction. there for a depletion layer is formed where free electrons where free electrons and holes ain't present. Download IIT JEE Main & Advance Semiconductor Revision Class Notes PDF by Allen Institute.
3. the electrical potential across depletion layer is known as potential barrier and developed field barrier and Developed field is known as junction field.
4. Initially diffusion current is extremely large but as depletion region grows diffusion current decrease and drift current increase, and after a very short time diffusion current and drift currently becomes equal, Net current is a zero and an unbroken depletion region is formed. IIT JEE Main & Advance.

Semiconductor Revision Class Notes PDF

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