How to use it
- Enter wafer diameter and unit.
- Enter die width, height and optional edge loss.
- Calculate theoretical and adjusted counts.
Wafer Die Calculator
Estimate simple die count from circular wafer and rectangular die areas.
Important: This calculator is for educational and estimation purposes only. It is not semiconductor design, manufacturing, process, yield, thermal, or professional engineering advice.
About the Wafer Die Calculator
This is a simplified area-ratio estimate for a circular wafer and rectangular die.
Formula
Wafer area is pi times radius squared; theoretical dies equal wafer area divided by die area.
Example
A 300 mm wafer with 10 x 10 mm dies gives about 706.86 theoretical dies before edge loss.
Notes
This estimate excludes scribe lines, packing, edge geometry, defects, test and process effects.