FinFET Effective Width Calculator
Compute the effective channel width of a FinFET from fin geometry and its ratio to the laid-out width.
Description
Compute the effective channel width of a FinFET from fin geometry and its ratio to the laid-out width.
FinFET Effective Width Calculator is a focused tool for the following task. Compute the effective channel width of a FinFET from fin geometry and its ratio to the laid-out width. It reports Effective width ratio, Effective width from the values you provide rather than inventing measurements, coefficients, or professional judgment that are not part of the input.
When to use FinFET Effective Width
Use this semiconductor calculation for first-order device, material, fabrication, interconnect, packaging, or reliability estimates when every coefficient and unit convention is known.
- Fin height (nm)
- Required number in nm. Vertical fin height.
- Layout width (nm)
- Required number in nm. Drawn layout width of the device.
- Fin width (nm)
- Required number in nm. Horizontal fin width.
The cited overview of Semiconductor device supplies background for the terminology and domain context used by this tool.1
How FinFET Effective Width works
Compute the effective channel width of a FinFET from fin geometry and its ratio to the laid-out width. Inputs are interpreted exactly in the displayed units and the calculation returns the following fields without presentation rounding.
- Effective width ratio (ratio)
- Returned number in ratio. Effective channel width divided by the comparison layout width.
- Effective width (nm)
- Returned number in nm. Effective electrical channel width.
Limitations and assumptions
- Material composition, geometry, process history, temperature, electric field, bias, interfaces, parasitics, and fitted parameter ranges can invalidate a compact semiconductor model.
- Fin height must be at least 5e-324.
- Layout width must be at least 5e-324.
- Fin width must be at least 5e-324.
- Use finite inputs in the displayed units, preserve source measurements and assumptions, and independently verify consequential decisions.
Alternative or Complementary approaches
Compare the estimate with measured process data, current device documentation, and a higher-fidelity circuit, field, thermal, quantum, or TCAD model when the decision requires it.
References
-
Semiconductor device — Wikipedia contributors
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