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Category Archives: Quality
Jul30
How to Analyze Returned Electronic Products and BGA Failures: A Practical Step-by-Step Troubleshooting Guide
Figure: Using the Red Dye Penetration Test to Check BGA Solder Joints for Open Solder or Head-in-Pillow (HIP) Defects At first glance, analyzing returned electronic products or BGA failures doesn’t seem all that complicated. In reality, however, many new engineers … Continue reading
Jul22
Should BGA Pads Be Designed as SMD or NSMD? Pros, Cons, and Drop-Test Performance
Figcaption: Should BGA Pads Be Designed as SMD or NSMD? Pros, Cons, and Drop-Test Performance Do you know the difference between SMD (Solder Mask Defined) and NSMD (Non-Solder Mask Defined) pad designs for PCB? What are the advantages and disadvantages … Continue reading
Jul16
BGA Failure Analysis: Manufacturing Issue or Design Flaw?
Figcaption: How to Determine Whether a BGA Solder Joint Crack or Component Detachment Is Caused by the SMT Process or Product Design Many engineers have asked the same question: When a BGA solder joint cracks or a BGA component falls … Continue reading
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
