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Category Archives: Quality
Jul08
BGA Cross-Section Analysis: How to Evaluate Solder Joint Quality and Identify Common Defects
Figcaption：BGA Cross-Section Analysis: How to Evaluate Solder Joint Quality and Identify Common Defects This article is intended for anyone who isn’t yet familiar with how to evaluate the quality of BGA solder joints from cross-section images. Workingbear happens to have … Continue reading
May21
Managing Color Variation in Plastic Parts: 7 Practical Tips for Better Color Control
Pantone color guides A few days ago, a reader asked Workingbear about color variation issues between plastic injection-molded parts, and whether there are any good ways to better control color consistency. The problem was probably caused by the purchasing team … Continue reading
May13
MRB Decision-Making and Cosmetic Quality Evaluation for Plastic Parts
When Workingbear first joined an electronics final assembly factory as a product/process engineer, I often had to attend MRB (Material Review Board) meetings. From time to time, people would come to me asking me to evaluate rejected parts and decide … Continue reading
May06
Why Electronics Assembly Factories Need IQC: Three Key Purposes Explained
In most electronics assembly organizations, there is a function called IQC (Incoming Quality Control). The primary purpose of IQC is to screen incoming materials to ensure they meet drawing specifications, preventing defective parts from directly entering the production line. This helps … Continue reading
Apr27
Using Limit Golden Samples to Manage Non-Quantifiable Quality Standards
In business transactions, both buyers and sellers usually agree on a product specification and acceptance criteria for the items being purchased. These criteria may include things like full functionality, dimensions within tolerance, intact packaging, and no defects in color or … Continue reading
