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Description

Supplier of Stress Testing Instruments

In the intricate world of electronics manufacturing, ensuring the reliability and durability of printed circuit board assemblies (PCBAs) is paramount. As a leading supplier of stress testing instruments, we provide cutting-edge solutions for PCBA strain measurement. Our expertise lies in offering comprehensive tools and methodologies that help manufacturers identify and mitigate mechanical stresses that can lead to component failure.

PCBA Strain Measurement Background

PCBAs undergo various stages of manufacturing, including Surface Mount Technology (SMT) assembly, panel cutting, and manual operations. Each of these stages can introduce mechanical stress, potentially leading to failures such as cracked solder balls, circuit damage, and substrate fractures. These failures not only result in material losses but also impact investments in research and development, production, and quality assurance processes.

Industry Standards and Guidelines

Under the guidance of global technology leaders like Intel, IBM, HP, and Apple, strain measurement has become a standardized practice, as outlined in the IPC/JEDEC-9704A guidelines. These standards provide a framework for identifying defective assembly processes and offer systematic steps for performing PCBA strain testing. Since its initial release in 2005 and subsequent revision in 2012, the guideline has become an industry benchmark for ensuring the structural integrity of PCBAs.

Importance of Early Detection

The cost implications of undetected PCBA strain are significant. Addressing a problem during the design phase might cost as little as one dollar, but the cost can escalate to ten dollars during manufacturing and a hundred dollars during production. This exponential increase underscores the importance of early detection and intervention. By implementing strain measurement techniques early in the design and manufacturing process, manufacturers can significantly reduce the risk of costly failures and improve product reliability.

Measurement Purpose

Strain gage testing is crucial because solder joints are particularly sensitive to mechanical stress. As the industry shifts towards lead-free materials and higher interconnect densities, the risk of damage from warpage increases. Incomplete cracking may not immediately result in PCBA failure, making it difficult to detect through functional tests alone. By effectively monitoring and controlling mechanical stresses during testing and assembly, manufacturers can reduce the incidence of defective products reaching end customers, ensuring higher quality and reliability.

DL-1000-8C-12 Alternative to National Instrument PCBA Damaging Stress Testing

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Specifications

Device Funtion: Data Logger
Measurement Range: -55500 – 55500 uE
Accuracy: -0.3 – 0.3 %
Stability: 6 ppm/degC
Sampling Frequency: 10 KHz (per channel)
Operational Temperature Range: -40 – 70 degC
Impedance: 120 Ohm
Current Channel: 8
Max Channel: 32

Got questions about specs? Use the inquiry form to ask.

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Features

  • Comprehensive PCBA Strain Measurement Solution: Our product provides a complete solution for measuring strain on printed circuit board assemblies (PCBA), ensuring reliability and performance.
  • Industry Standard Compliance: Adheres to IPC/JEDEC-9704A guidelines, recognized by leading global manufacturers such as Intel, IBM, HP, and Apple.
  • Versatile Application: Suitable for various stages of PCBA processing including SMT assembly, panel cutting, manual operations, rework, repair processes, connector installation, and PCB testing.
  • Cost-Effective Problem Solving: Early detection of strain-related issues can save significant costs, following the 1-10-100 rule: $1 during design, $10 during manufacturing, and $100 during production.
  • Critical for Lead-Free PCB Materials: Essential for managing warpage and deformation in new lead-free PCB laminate materials with higher interconnect density.
  • Prevention of Common Failures: Helps identify and prevent common mechanical stress failures such as cracked solder balls, circuit damage, and substrate cracks.
  • Enhances Product Reliability: By monitoring and controlling mechanical stresses, manufacturers can reduce defective products, ensuring higher quality for end customers.
  • Systematic Testing Process: Provides a structured approach to PCBA strain testing, helping identify defective assembly and test processes efficiently.

Applications

  • Typical Processing Needs Strain Measurement:
    • SMT Assembly
    • Panel Cutting
    • Manual Operation
    • All Rework and Repair Process
    • Connector Installation
    • PCB Testing
    • ICT, FCT, or Equivalent Functional Test
    • Mechanical Assembly:
      • Heat Sink Assembly
      • PCI or Daughterboard Installation
      • DIMM (Dual In-line Memory Module) Installation
  • Common Modes of Failure Due to Mechanical Stress:
    • Cracked Solder Balls
    • Circuit Damage
    • Warped Pads
    • Cracked Substrates
    • Capacitor Y-Cracks and 45° Cracks
  • PCBA Strain Gage Test Guideline:
    • Issued by IPC and JEDEC in 2005
    • Revised Version A in 2012
    • Identify Defective Assembly and Test Processing
    • Provide Systematic Steps to Perform PCBA Strain Testing
  • Measurement Purpose:
    • Solder Joints are Sensitive to Strain
    • Lead-Free PCB Laminate Materials Increase Warpage Damage
    • Incomplete Cracking May Not Cause Instant PCBA Failure
    • Monitoring and Controlling Mechanical Stresses Reduces Defective Products

Frequently Asked Questions

What is the purpose of PCBA strain measurement?
The purpose of PCBA strain measurement is to monitor and control mechanical stresses during manufacturing and assembly to prevent failures such as cracked solder balls, circuit damage, and warped pads.
What are some common modes of failure due to mechanical stress in PCBAs?
Common modes of failure due to mechanical stress in PCBAs include cracked solder balls, circuit damage, warped pads, cracked substrates, capacitor Y-cracks, and 45° cracks.
What is the IPC/JEDEC-9704A guideline?
The IPC/JEDEC-9704A guideline is a standard for Printed Circuit Assembly Strain Gage Testing, providing systematic steps to perform PCBA strain testing and identify defective assembly and test processing.
Why is strain gage testing important for solder joints?
Strain gage testing is important for solder joints because they are sensitive to strain, which can lead to warpage deformation and fracture mechanisms, especially with the use of lead-free PCB laminate materials.
How does the cost of addressing PCBA issues change over time?
Addressing PCBA issues costs significantly more as time progresses: $1 during the design phase, $10 during manufacturing, and $100 during production, following the 1-10-100 rule.
What industries or companies promote the use of PCBA strain measurement standards?
Global manufacturers such as Intel, IBM, HP, and Apple actively promote the use of PCBA strain measurement standards, which have become part of the IPC and JEDEC standards.
What are some applications of PCBA strain measurement?
Applications of PCBA strain measurement include SMT assembly, panel cutting, manual operations, rework and repair processes, connector installation, PCB testing, and mechanical assembly such as heat sink and DIMM installation.

Got more questions? Use the inquiry form to ask the supplier directly.

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