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Category Archives: Quality
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
Apr22
How to Define Cosmetic Quality Standards for Plastic Parts
Caption: Cosmetic scratches on plastic parts Before products are put into inventory after final assembly, electronics manufacturing factories always perform quality inspections to ensure product quality. In terms of functional performance, most products go through 100% function testing, so pass/fail … Continue reading
Apr08
How I Troubleshoot Hidden Open Circuits in FPCs
Flexible printed circuits (FPCs) are widely used because they can bend and fold. They’re perfect for compact products or for connecting signals between different PCBAs. But there’s a downside. As usage increases—especially in applications with repeated motion—FPCs can develop open circuits or … Continue reading
