Why Scaling Is Getting Harder (Yield, Variation, Device Physics)

Part of the Chip Reliability, Aging & Variability series → https://www.youtube.com/playlist?list=PLcbqD8G19W4BnaJd4489tDrQU3PcgqOpK
New to the channel? Start here → https://www.youtube.com/playlist?list=PLcbqD8G19W4DPv46nWp_SFX5H4pg2bsiP

For decades, scaling made chips better.

Smaller transistors meant:
more density, higher speed, and lower power.

But today, scaling is harder, slower, and more expensive.

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In this video, we connect the key forces shaping modern chip design:

• How device physics changes at small dimensions
• Why leakage and short-channel effects increase
• How variation grows as devices shrink
• Why uncertainty impacts timing and stability
• How yield degrades with increased sensitivity
• Why scaling no longer guarantees cost reduction
• How new device structures and design methods respond

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The key idea:

Scaling is no longer just about making things smaller.

It is about balancing:
device physics, variation, yield, and economics.

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📌 If this clicked, go deeper here:

SRAM 6T Bitcell Explained: Read/Write Operation
https://www.youtube.com/watch?v=qr9tJlktp2M

Monte Carlo Analysis in VLSI: Variations, Yield
https://www.youtube.com/watch?v=bbSdXXFoaQo

VLSI Interconnects Explained: On-Chip Wires, Resistance, Capacitance
https://www.youtube.com/watch?v=l1MfxXKETEE

RC Delay Model in CMOS: Inverter Delay, R–C Explanation
https://www.youtube.com/watch?v=0rzDm11YTTM

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This video is part of a series connecting scaling, physics, and modern chip design challenges.

Видео Why Scaling Is Getting Harder (Yield, Variation, Device Physics) канала Abhijit Pethe