FabTrack - Wafer Defect Tracker

FabTrack is a photolithography wafer & defect tracker built as a focused, end-to-end demo of an ASP.NET Core Web API + Angular stack. Engineers log silicon wafers moving through the chip-patterning line, record defects found on each, and view line health on a dashboard.

The backend is an ASP.NET Core Web API (.NET 10) with C#, using Entity Framework Core over SQLite with code-first migrations. It exposes REST CRUD for wafers and defects (one-to-many with cascade delete), a filterable defects endpoint, and a server-side aggregation endpoint for the dashboard. The database auto-migrates and seeds reproducible demo data on first run, so a fresh clone runs with one command. Swagger/OpenAPI documents the API.

The frontend is Angular (standalone components, TypeScript) with Angular Material and Chart.js. The standout feature is a visual defect map: each defect is plotted on the wafer surface by its X/Y location and colored by severity. The dashboard renders stat cards plus charts (defects by type, defects by severity) fed by the aggregation endpoint.

This is a focused learning/proof project rather than a large platform — built to demonstrate C# / .NET and Angular competence end to end. Auth, a NoSQL store, and containerized deploy are scoped as deferred next steps.