The goal is to enhance the quality and reliability of microcontroller manufacturing by leveraging yieldWerx's yield management system. The system offers comprehensive monitoring of chip manufacturing status and enables efficient root cause analysis for potential issues, thereby contributing to the prevention of defective products reaching the end customer.
Scenario:
Problem Identification:
The client, manufacturing microcontrollers, deals with large volumes of test data from multiple OSATs. They need a yield management system to monitor foundry wafer electrical parameters, wafer sort yielding/binning, and final package chip results with an aim to ensure utmost quality and reliability.
Decision to Implement yieldWerx:
The client decides to implement yieldWerx to monitor and analyze their microcontroller manufacturing test results. Quality Engineers, Test Engineers, Design Engineers, Product Engineers, and OSATs use the system to process and tag large volumes of data, develop outlier detection tests, and manage containment for field failures.
Data Utilization:
yieldWerx provides an intuitive interface for viewing real-time and historical data. This includes data like foundry wafer electrical parameters, wafer sort yielding/binning, final package chip results, and process control KPIs.
Here are some examples of the system's results:- Statistical Process Control KPIs – Monitors key parameters in the manufacturing process
- Outlier Detection – Identifies abnormal behavior or results that could indicate potential issues
- Commonality Analysis – Allows engineers to set up queries to look at potential root causes
- Multi-Test Histograms – A feature used in test program development to compare and contrast tests
Root Cause Analysis and Resolution:
Quality Engineers use yieldWerx to promptly detect and investigate potential problems. The system alerts them of unexpected deviations, holds a lot for disposition, and allows for commonality analysis for potential root cause investigation.
Continuous Monitoring and Improvement:
The client employs yieldWerx for continuous monitoring, adjustments, and optimization of their manufacturing process, thereby maintaining high-quality and reliable products.
Benefits:
Quality and Reliability Enhancement:
The client ensures consistent quality in their microcontroller manufacturing and minimizes the risk of manufacturing defects and potential field failures.
Efficient Root Cause Analysis:
Quality and engineering teams can promptly detect and resolve issues, using yieldWerx's comprehensive analysis features.
Engineer Focus:
Teams can focus more on their engineering roles, rather than spending time on data scripting and querying, increasing operational efficiency.
Customer Satisfaction:
By ensuring high reliability and quality, customer returns and rejections are prevented, improving customer satisfaction.