Assignment name: Semiconductor Yield Management Solution
Name of client: DELTA Microelectronics
Application Type: Three-tier Multi-user Online Analytical Processing Client Server Based in Distributed Environment |
Short description of project:
DELTA Test, a full-service test house, provides test services to the fabless semiconductor sector in Europe . Fabless customers receive test data from DELTA, often in data files such as STDF, which are used by test and product engineers to perform characterization, production monitoring, and yield analysis studies. Generally, test and product engineers know which tests have failed, but find it hard to discover the root cause. They go through large amounts of manufacturing and test data loaded onto a spreadsheet looking to find the causes for low yield. DELTA chose to partner with Trisoft after careful assessment of available packaged solutions. yieldWerx (a Trisoft product) was selected to provide DELTA engineers and customers with a comprehensive and scalable, enterprise wide test data warehousing, analyzing, and yield reporting solution. The purpose was to provide fabless companies with enterprise wide yield monitoring and reporting for their executives and engineers through interactive reports which offered high level snapshots, as well as detailed test data analysis reports from wafer acceptance testing, wafer sort, and final test operations.
yieldWerx provides engineers with a single click solution to generate comprehensive reports, such as zonal and parametric wafer maps, parametric failure summary, yield summary, Cp, Cpk, tester to tester and prober-to-prober type comparison reports. Additionally, engineers can use yieldWerx to perform customized "what-if" analysis, with the provision to remove outliers automatically or through user defined limits, and evaluate the impact of program changes on yield and repeatability. |
| Services provided by Trisoft: |
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System Analysis |
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Application Development |
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End User Manuals and Tutorials |
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Online Help Desk and Support |
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| Tools and Technologies: |
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Microsoft ® .Net Framework 1.1 |
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| Database: |
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Microsoft ® SQL Server |
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