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- an easy STDF data analysis tool you'll love

Standard Test Data Format (STDF) is the data format from most ATE testers. The tool we provided will be focus on reviewing test performance, by each STDF file, or combine multiple STDF for the same lot or correlation data comparison. We designed this easy to use, and customize issue can be requested. 

Download our free demo now  →
You'll need Java JDK to run
Download Java JDK at:

For 32bit windows, please download xSTDF for JRE8 and JRE8 here,

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Wafer Lot Summary

- Shows 5x5 gallery chart on all wafers final map

- Stack map options provide you stack by hardware or software bins 

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Wafer Bin Summary

- Bin map separated by first pass, retest and final map to review first pass and retest performance

- Bin Pareto shows bin result by first pass and final, to see recovery rate

- By site pareto will be helpful to see bin difference on each sites

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Wafer Soft Bin Summary

- The same bin summary display to separate by software bin instead of hardware bin

- All color can be adjusted and changed

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Final Test Data Loader

- Able to separate by first pass, retest and 2nd retest

- Able to load partial STDFs if multiple STDF files in a same insertion

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Final Test Bin Summary

- Plots ticker map by insertion instead of wafer bin maps

- First and final will be separated from files loaded

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Test Parameter Data

- Provides test summary, statistical summary by sites

- Charts included Histogram, Box Plot and Normal Probability plot.

- Wafer data will include heat map and trend chart. For FT data, only trend chart will be displayed

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Test Raw Data

- A list to review raw data. Included bin and parameters

- All raw data can export to csv

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SQL Connection

- Provided connection to MySQL database, a faster way to find your data

- We also provide guidance to build your MySQL database, contact us for free instruction!

Advanced Features Includes

  • Multi lot analysis

  • WAT correlations

  • SQL database setup and connection

  • Realtime tester monitor

  • Customized charts

Data Analysis goal can be very different for each requirements, so we are happy to work with you to make it the way you like! Contact us at

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