Velocity Saturation & Mobility Degradation: Why Electrons Slow Down? | VLSI Lecture #12 скачать в хорошем качестве

Velocity Saturation & Mobility Degradation: Why Electrons Slow Down? | VLSI Lecture #12

🚀 Master Virtuoso faster with the Design Bundle & E-books: https://rzp.io/rzp/4cUKw6q (Includes the CMOS Inverter Design Flow & My Personal Cheat Sheet!) 💥💥💥💥💥💥💥💥💥💥💥💥💥💥💥💥💥💥💥💥💥💥💥💥💥💥💥💥💥💥💥💥💥💥💥💥💥💥💥💥💥💥💥💥💥💥💥💥💥💥💥💥💥💥💥💥💥💥💥💥💥💥💥💥💥💥💥💥 🤔 Why don't electrons just keep getting faster as we increase the electric field? In this lecture, we explore the "Speed Limit" of modern transistors. As we move into deep sub-micron (short-channel) design, the ideal square-law equations start to fail. Today, we uncover the physics behind Velocity Saturation and Mobility Degradation. What you will learn in Lecture #12: ✅ The Concept of Mobility: A quick recap of how electrons move under an electric field. ✅ Mobility Degradation: Why the vertical electric field from Vgs actually slows down the electrons near the surface. ✅ Velocity Saturation: Understanding the "Critical Field" where electron velocity hits a maximum limit vd,sat ✅ Impact on iD: How these effects lead to a "Linear" relationship between current and voltage instead of the expected "Square-law" behavior. ✅ Short-Channel vs. Long-Channel: Why these effects are a nightmare for modern VLSI designers but negligible in older technologies? ✅ Key Physics Concepts: Carrier scattering (Surface vs. Bulk)High-field effects in MOSFETsThe transition from vd = μE to vd = vd,sat Join the Tribe: We are on the #roadto500subs! If you're finding these VLSI theory lectures helpful, please Subscribe and join our community of designers!    / @vlsidesign_ssg   🛠️💻Related Lectures: 📌 Lecture #11:    • The MOSFET Saturation Paradox SOLVED: Chan...   📌 Lecture #10:    • The MOSFET Saturation Paradox: Why Does Cu...   📌 The Complete VLSI Design Theory Course:    • VLSI Design Fundamentals : From Transistor...   📌 The Complete Cadence Virtuoso Course:    • Hands-On VLSI Design: Cadence Virtuoso Lab...   ⏰ Chapters: 00:18 - What are the Ideal I-V Effects of a MOSFET? 02:42 - What are we dealing with? 06:00 - Let's begin!!! 08:50 - When & Why does the Velocity Saturate? 16:20 - Dependancy of vd on lateral component of Electric Field 18:55 - Modified iD equation in linear region 21:00 - What's the Degree of Velocity Saturation 22:55 - Long Channel Devices - Impact 24:55 - Short Channel Devices - Impact 27:27 - Velocity Saturation value 30:38 - Chain Reaction 31:09 - What happens to Vds? 33:20 - Current Equation Modifications 34:56 - Observations!!! 38:40 - Short Channel Devices & Velocity Saturation Relation 41:30 - How do we get Mobility Degradation??? 46:00 - How the Vertical & Horizontal components of Electric Field Impact the MOSFET! 47:33 - THANKS FOR YOUR SUPPORT! Lets grow together! #vlsidesign_ssg #vlsi #velocitysaturation #mobilitydegradation #mosfet #shortchanneleffects #analogdesign #electronicsengineering #semiconductors #physics #btech #mtech #engineeringstudent #vlsidesign #ecetutorial #VLSIForBeginners #roadto500subs #vlsijobs #interviewquestions