Quick Answer
Calculate MOSFET Threshold Voltage Variation Impact Analyzer
Calculator
Result Interpretation
MOSFET Threshold Voltage Variation Impact Analyzer Calculator computes Electrical parameter variation (threshold voltage standard deviation) in V using the defined engineering formula and the input values provided.
Worked Example
Verified calculation
Given:
- Threshold voltage variation due to line-edge roughness = 0.022
- Threshold voltage variation due to random dopant fluctuation = 0.015
- Threshold voltage variation due to oxide thickness variation = 0.008
Expected Result:
- Electrical parameter variation (threshold voltage standard deviation) = 0.027802877548916
Engineering Interpretation:
Under the given input conditions, the calculated result is: Electrical parameter variation (threshold voltage standard deviation) = 0.027802877548916 V.
The actual numerical result is computed by the Runtime engine using the persisted tool definition. The values shown here come from automatically validated test cases.
Formula / Method
threshold voltage standard deviation = sqrt(pow(threshold voltage variation due to random dopant fluctuation, 2) + pow(threshold voltage variation due to line-edge roughness, 2) + pow(threshold voltage variation due to oxide thickness variation, 2))Formula family: formula_semiconductor_process_variation_impact_analyzer
Variables
| Symbol | Label | Role | Description |
|---|---|---|---|
| Vth_rdf | Threshold voltage variation due to random dopant fluctuation | INPUT | Threshold voltage variation due to random dopant fluctuation |
| Vth_ler | Threshold voltage variation due to line-edge roughness | INPUT | Threshold voltage variation due to line-edge roughness |
| Vth_oxide_thickness_variation | Threshold voltage variation due to oxide thickness variation | INPUT | Threshold voltage variation due to oxide thickness variation |
| electrical_parameter_variation | Electrical parameter variation (threshold voltage standard deviation) | OUTPUT | Electrical parameter variation (threshold voltage standard deviation) |
Calculation Steps
- Enter the threshold voltage variation due to random dopant fluctuation in V.
- Enter the threshold voltage variation due to line-edge roughness in V.
- Enter the threshold voltage variation due to oxide thickness variation in V.
- Step 1: Compute electrical parameter variation (threshold voltage standard deviation).
- Read the electrical parameter variation (threshold voltage standard deviation) (V) from the results.
Engineering Summary
Calculate MOSFET Threshold Voltage Variation Impact Analyzer
Frequently Asked Questions
What does this calculator calculate?
The MOSFET Threshold Voltage Variation Impact Analyzer Calculator estimates Electrical parameter variation (threshold voltage standard deviation) based on the input parameters you provide
Why is threshold voltage variation due to random dopant fluctuation important in this calculation?
threshold voltage variation due to random dopant fluctuation is directly proportional to electrical parameter variation (threshold voltage standard deviation). When you enter threshold voltage variation due to random dopant fluctuation in V, the calculator uses it in the engineering formula to compute the output
How should I interpret the result electrical parameter variation (threshold voltage standard deviation)?
The calculator outputs electrical parameter variation (threshold voltage standard deviation) in V. The result is computed directly from the input values using the defined engineering formula
What units should I use for the inputs?
Enter each value in the units shown next to the input field: Threshold voltage variation due to random dopant fluctuation (V), Threshold voltage variation due to line-edge roughness (V), Threshold voltage variation due to oxide thickness variation (V). Make sure all inputs use the specified units for consistent results
What assumptions does this calculator use?
This calculator uses automatically validated engineering formulas. Results are approximate and should be validated against site-specific conditions, applicable codes, and professional engineering judgment
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