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MOSFET Gate Dielectric Capacitance & Equivalent Oxide Thickness (EOT) Calculator

Easily calculate and compute mosfet gate dielectric capacitance & equivalent oxide thickness (eot) calculator with accurate equations, live formulas, and expert guidance.

Physical thickness of HfO2 or ZrO2 film.

For SiO2 κ=3.9; for HfO2 κ≈20 to 25.

Calculated Result
0.44 nm (SiO₂ eq)

Equivalent Oxide (EOT)

Equivalent Oxide (EOT)

0.44 nm (SiO₂ eq)

Equivalent Oxide Thickness Eot Nm

0.44

Oxide Capacitance Per Area Ff Per Um2

77.92

Total Gate Capacitance Atto Farads

109.08

Quantum Tunneling Assessment

Sub-0.8nm EOT: Metal gate work function engineering and interfacial SiO2 monolayer control required

0.44 — nm (SiO₂ eq)

Calculation Breakdown

  1. Applied FormulaCalculates the Equivalent Oxide Thickness (EOT) and gate area capacitance C_ox for advanced High-k Metal Gate (HKMG) transistors.\text{EOT} = t_{\text{phys}} \left( \frac{3.9}{\kappa} \right), \quad C_{\text{ox}} = \frac{\kappa \varepsilon_0}{t_{\text{phys}}}

Gate Oxide Capacitance & EOT Metric Output

Interactive visualization based on your current inputs

Calculated Value
0.00.30.50.81.0Equivalent Oxide (EOT)

What Is the MOSFET Gate Dielectric Capacitance & Equivalent Oxide Thickness (EOT) Calculator?

This tool computes mosfet gate dielectric capacitance & equivalent oxide thickness (eot) calculator with high precision arithmetic.

How Does the MOSFET Gate Dielectric Capacitance & Equivalent Oxide Thickness (EOT) Calculator Work?

Calculates the Equivalent Oxide Thickness (EOT) and gate area capacitance C_ox for advanced High-k Metal Gate (HKMG) transistors.

MOSFET Gate Dielectric Capacitance & Equivalent Oxide Thickness (EOT) Calculator Formula & Variables

The core mathematical equation utilized by this calculator is expressed as:

EOT=tphys(3.9κ),Cox=κε0tphys\text{EOT} = t_{\text{phys}} \left( \frac{3.9}{\kappa} \right), \quad C_{\text{ox}} = \frac{\kappa \varepsilon_0}{t_{\text{phys}}}

Calculates the Equivalent Oxide Thickness (EOT) and gate area capacitance C_ox for advanced High-k Metal Gate (HKMG) transistors.

How to Use the MOSFET Gate Dielectric Capacitance & Equivalent Oxide Thickness (EOT) Calculator

  1. Enter your parameters into the designated input fields to calculate the result immediately.

Step-by-Step Example Calculation

MOSFET Gate Dielectric Capacitance & Equivalent Oxide Thickness (EOT) Calculator Example

Input Values:

physicalDielectricThicknessNm:2.5
dielectricConstantK:22
channelGateLengthNm:14
channelGateWidthNm:100
Worked Steps: Sample evaluation based on standard reference conditions.

Understanding Your Result

The calculated primary figure indicates the optimal or required nm (SiO₂ eq).

Factors That Affect the Result

  • Measurement tolerances, operational variance, and real-world conditions.

When Should You Use This Calculator?

  • Everyday budgeting, technical homework, professional estimation, and household projects.

Assumptions & Limitations

  • Assumes standard atmospheric or environmental parameters unless specified.

Frequently Asked Questions

Calculation Accuracy & Reference Note

Double-precision IEEE 754 arithmetic with validated empirical constants.

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