The physics of EUV stochastics, made tangible.
Countable photons, nanometre-scale blur, and the defect tails they create. Four free, physically-honest calculators for the limits engineers actually hit at the leading edge — built by the team behind SECD-CRF, a physics-informed semiconductor defect predictor.
Four calculators
Each one is an isolated, honest slice of the same physics.
EUV Photon Shot Noise
How many photons actually expose a feature — and how much that count randomly fluctuates. The floor beneath every stochastic defect.
euv shot noise calculator Open calculator → 02 · GAUSSIAN PSFSecondary Electron Blur
Watch a Gaussian point-spread soften a line/space edge, drop image contrast, and collapse NILS as blur approaches the half-pitch.
secondary electron blur lithography Open calculator → 03 · DEMOSECD Defect Probability
Where shot noise becomes yield: the Poisson tail below a print threshold, swinging across orders of magnitude. A demo of what SECD-CRF makes rigorous.
euv stochastic defect probability Open demo → 04 · PROCESS WINDOWEUV Dose–Defect
Sweep exposure dose and watch the defect tail fall — then read off the dose you need to hit a target defect rate.
euv dose defect probability Open calculator →Why these tools exist
The calculators aren't the product — they're the on-ramp. A search for "EUV shot noise" lands on a tool that does one honest thing well; the tool links to a short explainer; the explainer links to open code on GitHub; the code is the demonstrable core of SECD-CRF, a physics-informed model for predicting stochastic defects from a layout. Each asset makes the next one more credible.
That's the whole thesis: free tools earn attention, open research earns trust, and a working algorithm earns technical credibility — which is what actually converts to consulting and licensing. No dark patterns, no overclaiming. Every model here is labelled for exactly what it is: textbook physics that builds intuition, not a fab-grade predictor.
Traffic & intuition. The four tools above, honest and self-contained.
Explainers & reproducible code on GitHub. SEO and trust that compounds.
Physics-informed simulation and analysis, delivered as a service.
The defect predictor itself — licensing & integration, once validated.
Read the research
One explainer per tool — the physics, in plain language.
Why EUV Photons Create Stochastic Defects
Countable photons, Poisson statistics, and the defect floor.
Research 02What Secondary-Electron Blur Means
The nanometre electron spread that softens every EUV edge.
Research 03From Shot Noise to Yield Loss
How a Poisson tail becomes a defects-per-billion number.
Research 04EUV Dose and the Process Window
Why more light means fewer defects — and what it costs.
Semiconductor simulation consulting
Monte-Carlo modelling, physics-informed ML, research prototypes, reproducibility audits, and technical writing for semiconductor R&D and advanced manufacturing. Positioned as a capability you can hire today — not a claim that needs validating first.
The Semiconductor Intelligence Brief
One short email every week or two: a research finding, an SECD visualization, a useful calculator, a GitHub update. For engineers and researchers who care about the physics — not a generic newsletter.