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Free tool
Wafer map editor
Draw wafer bin maps in your browser. Paint pass/fail dies, generate defect patterns, compute yield, and share any map with a link. Everything runs locally — no upload, no login.
Wafer
mm
Die & street
mm
mm
mm
mm
Bins
Tools & patterns
5%
Patterns paint with the first fail bin. Right-click erases. Ctrl+Z / Ctrl+Y for undo / redo.
Yield
71.9%
Total dies
597
Pass
429
Fail
168
The whole design travels in the link.
Working with real production wafer maps?
MAPx parses E142, KLARF, SINF, TEL, STDF natively with spatial analysis, cluster detection, and GDBN screening. Try it free with your own files.