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1. TATA STEEL TECHNICAL INSTITUTE SHOPTALK PRESENTATION ON MOSFET ANJALI PANDEY BNTC2324004 16 th July,2025 TATA STEEL TECHNICAL INSTITUTE, NEAR DURGA PUJA MAIDAAN, BURMAMINES, JAMSHEDPUR- 831007

2. Introduction MOSFET is a type of Field Effect Transistor (FET). It is widely used in digital and analog circuits. Functions as a voltage-controlled device. Plays a crucial role in switching and amplification. TATA STEEL TECHNICAL INSTITUTE, NEAR DURGA PUJA MAIDAAN, BURMAMINES, JAMSHEDPUR- 831007 TATA STEEL TECHNICAL INSTITUTE, NEAR DURGA PUJA MAIDAAN, BURMAMINES, JAMSHEDPUR- 831007

3. History Concept proposed in 1925 by Julius Lilienfeld. First practical MOSFET developed by Mohamed Atalla and Dawon Kahng in 1959 at Bell Labs. Revolutionized electronics and led to modern integrated circuits. TATA STEEL TECHNICAL INSTITUTE, NEAR DURGA PUJA MAIDAAN, BURMAMINES, JAMSHEDPUR- 831007

4. Types of MOSFET Enhancement Mode MOSFET: - Normally OFF, turns ON when gate voltage is applied. - Used in digital logic circuits. Depletion Mode MOSFET: - Normally ON, turns OFF when negative voltage applied. - Used in amplifiers. TATA STEEL TECHNICAL INSTITUTE, NEAR DURGA PUJA MAIDAAN, BURMAMINES, JAMSHEDPUR- 831007

5. Types of MOSFETs TATA STEEL TECHNICAL INSTITUTE, NEAR DURGA PUJA MAIDAAN, BURMAMINES, JAMSHEDPUR- 831007

6. Applications Power electronics (switching power supplies). Microprocessors and memory devices. Amplifiers in audio and RF circuits. Motor control and digital switching. TATA STEEL TECHNICAL INSTITUTE, NEAR DURGA PUJA MAIDAAN, BURMAMINES, JAMSHEDPUR- 831007

7. Advantages & Disadvantages Advantages: High input impedance. Low power consumption. Fast switching speed. Disadvantages: Sensitive to static charges. Limited power handling compared to BJTs. TATA STEEL TECHNICAL INSTITUTE, NEAR DURGA PUJA MAIDAAN, BURMAMINES, JAMSHEDPUR- 831007

8. Future Scope Continued scaling for nanotechnology applications. Integration in AI and IoT devices. Use in renewable energy systems. Development of high-power MOSFETs for electric vehicles. TATA STEEL TECHNICAL INSTITUTE, NEAR DURGA PUJA MAIDAAN, BURMAMINES, JAMSHEDPUR- 831007

9. Conclusion MOSFETs are the backbone of modern electronics. Widely used in digital and analog applications. Their evolution continues to drive advancements in technology. TATA STEEL TECHNICAL INSTITUTE, NEAR DURGA PUJA MAIDAAN, BURMAMINES, JAMSHEDPUR- 831007 TATA STEEL TECHNICAL INSTITUTE, NEAR DURGA PUJA MAIDAAN, BURMAMINES, JAMSHEDPUR- 831007