Reliability Tools

Test Plan Generator

Physics-based test plans from mission profile to DVP&R.

Test Plan\boxed{\text{Test Plan}}
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Mission Profile Builder

Build duty cycle and stress distributions by lifecycle phase. Clickable matrix + exports.

Stress×Phase Matrix\boxed{\text{Stress} \times \text{Phase Matrix}}
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HALT/HASS Planning Wizard

Build step-stress profiles for HALT and derive HASS screens. Detection-first or duty-cycle driven.

Step-stress profile builder\boxed{\text{Step-stress profile builder}}
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Burn-In Test Wizard

Design physics-based burn-in strategies to screen early-life failures. Recommends stress conditions, duration, and acceleration factors tied to intended life and failure mechanisms.

AF=eEak(1Tuse1Tstress)AF = e^{\frac{E_a}{k}\left(\frac{1}{T_{\text{use}}}-\frac{1}{T_{\text{stress}}}\right)}
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Vibration + Thermal Cycling Wizard

Build a vibration mission profile, generate accelerated PSD test profiles, and derive fixture requirements with reliability demonstration sizing.

Stest(f)=kS0(f)S_{test}(f)=k\cdot S_0(f)
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Derating Navigator

Apply MIL-style derating principles to electronic and mechanical components. Quantify derated margins, factors of safety, and thermal headroom, and generate compliance-ready summaries.

DM=1AppliedRated\boxed{DM = 1 - \frac{\text{Applied}}{\text{Rated}}}
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Arrhenius Calculator

Quantify thermal acceleration using the Arrhenius model. Calculate acceleration factors, equivalent life, and test durations for accelerated life testing (ALT) and design margin assessment.

AF=eEak(1Tuse1Tstress)AF = e^{\frac{E_a}{k}\left(\frac{1}{T_{\text{use}}}-\frac{1}{T_{\text{stress}}}\right)}
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Weibull Probability Plot

Fit 2-parameter Weibull models with FAIL and right-censored SUSP data. Overlay multiple datasets on Weibull probability paper and export beta, eta, B-life, and mission reliability metrics.

F(t)=1e(tη)βF(t)=1-e^{-\left(\frac{t}{\eta}\right)^{\beta}}
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Coffin-Manson Calculator

Estimate fatigue life driven by thermal cycling using the Coffin-Manson model. Ideal for solder joints, interconnects, and mechanically constrained assemblies exposed to cyclic strain.

Nf=AΔεcN_f = A\,\Delta\varepsilon^{-c}
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Electromigration Lifetime Calculator

Predict microelectronics lifetime using Black's equation. Evaluate current density, temperature sensitivity, activation energy, and MTTF for design trade-offs and technology comparisons.

MTTF=AjneEakTMTTF = A\,j^{-n}\,e^{\frac{E_a}{kT}}
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Sample Size Calculator

Determine required sample size, allowable failures, or achieved reliability and confidence using binomial reliability-demonstration theory—aligned with common qualification and DV requirements.

1i=0f(ni)(1R)iRniCL1-\sum_{i=0}^{f}\binom{n}{i}(1-R)^iR^{n-i}\ge\mathrm{CL}
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Psychrometric Calculator

Analyze air-moisture properties including relative humidity, wet-bulb temperature, and enthalpy. Useful for environmental testing, humidity stress analysis, and lab condition validation.

Psychrometrics\boxed{\text{Psychrometrics}}
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P Diagram Generator

Structure signals, noise factors, and design intent.

P-Diagram\boxed{\text{P-Diagram}}
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Reliability Block Diagram (RBD) Generator

Build system-level Reliability Block Diagrams from a simple table, analyze Series/Parallel/Hybrid architectures, compute system reliability, and export diagrams and data for design reviews.

Rsys=1i(1Ri)R_{\text{sys}}=1-\prod_i(1-R_i)
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Bayesian Reliability Predictor (Software)

Estimate and update software reliability using Bayesian methods. Convert test results and failure data into predictive reliability metrics, MTTF, and release readiness insight.

Bayesian Prediction\boxed{\text{Bayesian Prediction}}
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