Finding Why Solder Joints Failed, Not Just Which Ones

Finding Why Solder Joints Failed, Not Just Which Ones

AI-based X-ray image analysis identified improper soldering on PCBs and traced the process conditions behind recurring quality problems.

~2%X-ray defect detection and root-cause analysis cut bad-quality losses

ITChamps implemented an AI-enabled X-ray image analysis and quality intelligence solution for an ESDM manufacturer, identifying improper soldering and other PCB defects and tracing their probable causes.

The Challenge

Detecting bad PCBs was easy; explaining why they were bad was not

Conventional inspection methods could identify poor-quality products, but identifying the underlying reasons for recurring quality problems was more challenging, limiting the ability to improve the process itself.

  • Improper soldering and other PCB quality issues recurred during manufacturing.
  • Conventional inspection could flag defective units but not explain recurring causes.
  • The team needed insight into causes of poor quality, not just detection.
  • The goal was better process control, not just more inspection.

The Solution

X-ray defect detection linked back to process conditions

The solution analyzed X-ray images of manufactured PCBs with AI to detect defects, then combined quality-pattern analysis with process data to identify probable root causes and feed insights back into the process.

01X-Ray Image Acquisition

Collected X-ray images of manufactured PCBs for analysis.

02AI-Based Defect Identification

Analyzed X-ray images with AI to identify improper soldering and other quality deviations.

03Quality Classification

Differentiated good and poor-quality products based on identified characteristics.

04Quality-Pattern Analysis

Analyzed historical quality and process data to identify recurring patterns.

05Root-Cause Identification

Identified probable reasons contributing to poor-quality output.

06Process-Control Feedback

Fed insights back into the manufacturing process to support corrective and preventive action.

Results

Measured business impact

~2%Bad-quality loss reduction

Reduction in bad-quality-related losses.

AIX-ray defect detection

Automated identification of improper soldering and other deviations.

Process control

Insights fed back into the process to support corrective action.

Detection to prevention

Shift from defect detection toward defect prevention.

Highlights

  • Went beyond identifying poor-quality PCBs to explaining why they occurred.
  • Enabled corrective action at the process level, not just the inspection line.
  • Shifted the organization from defect detection toward defect prevention.
  • Improved manufacturing control through process-level feedback.

Services and technology

AI Quality InspectionRoot-Cause AnalysisProcess ControlAI Image AnalysisX-Ray Defect DetectionQuality Pattern Analysis

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