Extract text from test data files (STDF)
To convert STDF data files to another format, you need Teradyne IG-XL or other Data software.
To convert other file formats to the "Semiconductor Test Data" file type, you need software like Teradyne IG-XL or a similar tool.
The .STDF file is a binary data file used exclusively in the semiconductor manufacturing industry. It stores parametric and functional test results generated by Automated Test Equipment (ATE). Test engineers use these files to monitor wafer yield, debug manufacturing issues, and analyze the performance of microchips.
To open these files, engineers typically rely on specialized commercial yield management software or write custom parsing scripts using programming languages like Python and libraries such as pystdf.
The main disadvantage of the .STDF format is its proprietary, binary structure. It is completely unreadable in standard text editors. Furthermore, these files can easily exceed hundreds of megabytes because they log millions of individual chip tests. Sharing this data with data scientists or management is impossible without specialized software, which often requires expensive enterprise licenses.
To make the data accessible, you must convert .STDF files to CSV, XLSX, or JSON. Converting to CSV allows anyone to open the test logs in Microsoft Excel or import them into databases for machine learning and yield analysis. However, converting to plain text significantly increases the file size compared to the original compressed binary format.
Because .STDF files use a complex sequence of binary record types (such as MIR, PRR, and PTR), standard online document converters will fail to process them. convert.guru takes a different approach. Just drag and drop your file to identify the format, view the raw ASCII metadata embedded in the headers, and convert it to CSV when possible.
Convert.Guru analyzes your STDF file, detects the exact format, and lets you read the text inside.
Users also converted STD, STD_1, TXT, PDF, CSV, KDT, TFT, FINAL and TEXT files.
If you want to convert STDF file to CSV, TEXT, JSON, XML, YAML, YML, TOML, INI, CFG, CONF, DAT or DB, you can use Teradyne IG-XL or similar software from the "Semiconductor Test Data Logging" category. In the File menu, look for Save As… or Export….
To convert DBF, XML, SQLITE, XLSX, SQL, TSV, ACCDB, YAML, MDB, CSV, ODS or JSON files to STDF, try Teradyne IG-XL or another comparable tool in the "Semiconductor Test Data Logging" category.
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our STDF converter.