PCB testing forms the critical final checkpoint in electronics manufacturing, ensuring every circuit board meets exacting quality standards before integration into final products.
}Our comprehensive testing protocols combine automated inspection with functional validation to verify electrical performance, mechanical integrity, and long-term reliability. From basic continuity checks to complex system-level simulations, our testing procedures identify potential failures while providing actionable data for continuous process improvement.
The testing process begins with automated optical inspection (AOI) using high-resolution cameras to examine solder joints, component placement, and surface defects. Advanced flying probe testers then validate electrical characteristics, checking over 2,000 test points per board for opens, shorts, and component values.
For complete functional verification, boards proceed to customized test fixtures that simulate real operating conditions – including power cycling, signal transmission, and thermal stress.
Core Testing Capabilities and Equipment:
1. In-Circuit Testing (ICT):
Keysight i3070 Series Test Systems
1024+ test points per second
Measures resistance, capacitance, inductance
2. Functional Circuit Testing (FCT):
Custom test jigs with programmable loads
Full operational mode simulation
Burn-in testing up to 72 hours
3. Environmental Stress Screening:
Thermal shock chambers (-40°C to +125°C)
Vibration tables (5-2000Hz frequency range)
Humidity cabinets (85°C/85% RH)
Key Advantages of Our Testing Services:
Precision Detection:
25μm defect resolution (AOI)
μΩ-level resistance measurement
0.1pF capacitance tolerance
Comprehensive Coverage:
100% board testing policy
Power-on/power-off state verification
Signal integrity analysis
Data-Driven Quality:
Real-time SPC monitoring
Automated test data logging
Traceable failure analysis
Quality Assurance Workflow:
1. Initial Verification:
Barcode scanning for lot tracking
Visual inspection under 10X magnification
2. Automated Testing:
ICT for basic electrical characteristics
Flying probe for complex boards
3. Functional Validation:
Custom firmware loading
Input/output signal verification
Load testing at 125% rated capacity
4. Environmental Stress:
Sampled thermal cycling
Vibration resistance testing
Humidity exposure
5. Final Certification:
Automated pass/fail tagging
QR code quality certification
ESD-protected packaging
Non-Conformance Management:
Failed units enter red quarantine bins with auto-generated RMA tags for:
BGA rework at dedicated stations
X-ray inspection of hidden joints
Cross-section analysis for root cause
Approved products transfer to smart storage featuring:
ESD-safe shelving with IoT monitoring
40±5% RH climate control
FIFO inventory rotation
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