Drain Current After Full Scaling VLSI Calculator

Formula Used:

\[ ID' = \frac{ID}{Sf} \]

Drain Current After Full Scaling (ID'):

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1. What is Drain Current After Full Scaling?

Drain Current after Full Scaling is defined as a drain current value after reduction in dimensions of MOSFET by full scaling. It represents the modified drain current when transistor dimensions are scaled down by a specific factor.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ ID' = \frac{ID}{Sf} \]

Where:

\( ID' \) — Drain Current after Full Scaling (Ampere)
\( ID \) — Original Drain Current (Ampere)
\( Sf \) — Scaling Factor (unitless)

Explanation: The formula calculates the new drain current value after scaling down the transistor dimensions by the specified scaling factor.

3. Importance of Full Scaling in VLSI

Details: Full scaling is crucial in VLSI design for improving transistor density, reducing power consumption, and enhancing circuit performance while maintaining proper current characteristics.

4. Using the Calculator

Tips: Enter the original drain current in Amperes and the scaling factor. Both values must be positive numbers greater than zero for accurate calculation.

5. Frequently Asked Questions (FAQ)

Q1: What is full scaling in VLSI?
A: Full scaling refers to the proportional reduction of all transistor dimensions (length, width, oxide thickness) by the same scaling factor to maintain electric field integrity.

Q2: How does scaling affect drain current?
A: Scaling reduces the drain current proportionally to the scaling factor, as both channel dimensions and gate oxide thickness are reduced.

Q3: What are typical scaling factor values?
A: Scaling factors typically range from 1.2 to 2.0, with common values being 1.5 or 2.0 for full scaling implementations.

Q4: Does scaling affect other transistor parameters?
A: Yes, scaling affects multiple parameters including threshold voltage, transconductance, and capacitance, in addition to drain current.

Q5: When is full scaling used in VLSI design?
A: Full scaling is used when migrating designs to smaller technology nodes while maintaining similar electric field characteristics and device behavior.