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wafermap

wafermap demo

A JavaScript library for rendering interactive wafer maps from semiconductor test data. Hard bins, soft bins, test values, retest runs, edge exclusion, and spec limits are native inputs — no pre-processing required.

npm install @paulrobins/wafermap

import { buildWaferMap } from '@paulrobins/wafermap';
import { renderWaferMap } from '@paulrobins/wafermap/render';

const result = buildWaferMap({ results });
renderWaferMap(document.getElementById('map'), result);

What it covers

Geometry. Pass full physical dimensions or raw prober step positions — die pitch, wafer diameter, and coordinate origin are inferred when not supplied. Retest policy (last, first, best, worst), edge exclusion, and reticle overlays are supported directly.

Rendering. renderWaferMap produces an interactive canvas map with toolbar, zoom/pan, tooltips, die selection, and summary panel. renderWaferGallery renders a full lot as a responsive card grid with shared controls and click-to-expand.

Analysis. analyzeWaferMap runs spatial analysis across rings, quadrants, sectors, and reticle positions, and detects contiguous failure clusters and edge arcs. analyzeWaferLot adds lot-level trend series and cross-wafer patterns. Results wire directly into the summary panel.

Integration. Pure ES modules, no server, no runtime dependencies. Works in React, Svelte, Vue, plain HTML, or a Web Worker.

Start here

Reference