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Drain-Induced Barrier Lowering (DIBL) & Short-Channel V_th Roll-off Calculator

Easily calculate and compute drain-induced barrier lowering (dibl) & short-channel v_th roll-off calculator with accurate equations, live formulas, and expert guidance.

Physical gate length.

Linear measurement drain voltage (typically 50 mV).

Supply drain voltage V_DD.

Threshold voltage extracted at V_DS1.

Threshold voltage extracted at V_DS2.

Calculated Result
115.8 mV/V

DIBL Parameter

DIBL Parameter

115.8 mV/V

Dibl Mv Per V

115.8

Threshold Shift Mv

110

Short Channel Severity

Moderate Short-Channel Effects

Gate Length Nm

28

115.8 — mV/V

Calculation Breakdown

  1. Applied FormulaMeasures how severely high drain bias electrostatically pulls down the source-channel injection energy barrier, depressing threshold voltage in sub-100nm planar transistors.DIBL = -\frac{\Delta V_{th}}{\Delta V_{DS}} = \frac{V_{th}^{lin} - V_{th}^{sat}}{V_{DD} - V_{ds,lin}}

MOSFET DIBL & Roll-off Metric Output

Interactive visualization based on your current inputs

Calculated Value
0.0295887116DIBL Parameter

What Is the Drain-Induced Barrier Lowering (DIBL) & Short-Channel V_th Roll-off Calculator?

This tool computes drain-induced barrier lowering (dibl) & short-channel v_th roll-off calculator with high precision arithmetic.

How Does the Drain-Induced Barrier Lowering (DIBL) & Short-Channel V_th Roll-off Calculator Work?

Measures how severely high drain bias electrostatically pulls down the source-channel injection energy barrier, depressing threshold voltage in sub-100nm planar transistors.

Drain-Induced Barrier Lowering (DIBL) & Short-Channel V_th Roll-off Calculator Formula & Variables

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

DIBL=−ΔVthΔVDS=Vthlin−VthsatVDD−Vds,linDIBL = -\frac{\Delta V_{th}}{\Delta V_{DS}} = \frac{V_{th}^{lin} - V_{th}^{sat}}{V_{DD} - V_{ds,lin}}

Measures how severely high drain bias electrostatically pulls down the source-channel injection energy barrier, depressing threshold voltage in sub-100nm planar transistors.

How to Use the Drain-Induced Barrier Lowering (DIBL) & Short-Channel V_th Roll-off Calculator

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

Step-by-Step Example Calculation

Drain-Induced Barrier Lowering (DIBL) & Short-Channel V_th Roll-off Calculator Example

Input Values:

channelLengthNm:28
lowDrainVoltageVds1:0.05
highDrainVoltageVds2:1
measuredVthLowDrainV:0.42
measuredVthHighDrainV:0.31
Worked Steps: Sample evaluation based on standard reference conditions.

Understanding Your Result

The calculated primary figure indicates the optimal or required mV/V.

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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