MPS Chooses yieldWerx’ SPC Module to Monitor Test Operations – The yieldWerx’s SPC module along with yieldWerx’s Enterprise Module has provided MPS with an automated capability to analyze production variance. MPS engineers get alerts in real-time if the process variations are showing anomalies. These engineers can then use yieldWerx Enterprise software to compare the distribution with trend charts, slice dice and analyze the data to create a detailed action plan. Benefits include higher reliability and equipment throughput. Better customer transparency and shorter time to resolve problems.
Many MPS products use proprietary processes at their foundries who ship wafers to MPS’s Chengdu China facility for wafer sort. After sort, wafersare shipped to assembly vendors and packaged parts are returned to MPS test house or its turnkey house for final test. 20-40% annual growth in unit volumes and customer reliability and reporting requirements in consumer and automotive products initiated MPS to seek better tools to manage the process. In addition, generating quality reports for customer business reviews was needed.
In Q3 2015 MPS deployed the yieldWerx SPC module, extending their existing YieldWerx Enterprise installation, at their production (Final Test) sites. The SPC module automatically monitors process consistency across, lots, wafers machines, testers. Real-time SPC allows MPS to monitor consistency through every stage of their production cycle. Since the deployment of the SPC Module, MPS has achieved early detection and warning of bad lots prior to shipment. MPS is currently processing 200,000–300,000 dies per day, generating in excess of 6-7GB of data. This data is automatically loaded by yieldWerx in real-time, and
analyzed to detect excursions and alert stakeholders. By streamlining the process control and reporting, MPS has been able to lower defect rates and reduce machine stoppages.
“We were getting a lot of customer requests to generate process monitoring reports using statistical process control and based on our previous experience with yieldWerx Enterprise solution, we decided to select their SPC module along with their Enterprise Solution. Now with yieldWerx’s SPC module deployed we are able to create product and test-specific rules that monitor and automatically generate email alerts and send stop notices to equipment and MES sys-tems. The module has greatly added to our capabilities in defect prevention and ensuring reliability. A requirement from some of our customers.”, said Henry Zhao, Sr. Director, Quality Assurance and Information Systems, MPS.
About MPS:
Monolithic Power Systems, Inc. (MPS) develops and markets proprietary, analog and mixed- signal semiconductors. MPS products are used in LCD monitors, TVs, computing, data communications, and a wide variety of consumer, automotive and industrial products. MPS is a fabless semiconductor company that outsources wafer manufacturing as well as IC assembly and sells its products worldwide through direct sales and distributors.
About yieldWerx:
yieldWerx provides the semiconductor industry with enterprise wide test and engineering data management solutions that increase yield and reduce time to market. yieldWerx enables product and test engineers to gain better visibility of their test data, which is essential for intelligent decision-making, directly impacting yield and profitability. yieldWerx has hundreds of users at fabless semiconductor companies, IDMs, and OSATs across the world, who use our software to improve productivity, reduce defects, and improve device yields. Based in Dallas, Texas, yieldWerx maintains sales and support operations worldwide.
Company contacts:
yieldWerx:
Omar M. Malik
Chief Operating Officer
omar.malik@yieldwerx.com
For more information contact omar.malik@yieldwerx.com or visit www.yieldwerx.com