Thumbnail of PCBA Strain Measurement Solution for Stress Testing Instruments TSK-32-16C-12 photo 1
Thumbnail of PCBA Strain Measurement Solution for Stress Testing Instruments TSK-32-16C-12 photo 2
Thumbnail of PCBA Strain Measurement Solution for Stress Testing Instruments TSK-32-16C-12 photo 3

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 comprehensive solutions for PCBA strain measurement, a critical aspect of maintaining the integrity of electronic components throughout their lifecycle.

PCBA Strain Measurement Background

During various stages of Surface Mount Technology (SMT), Dual In-line Package (DIP) assembly, and reliability testing, PCBAs are subjected to mechanical stresses that can lead to failure. Common failure modes include cracked solder balls, circuit damage, warped pads, and substrate cracks. These failures not only result in material losses but also incur significant costs in research and development, production, and troubleshooting efforts.

Industry Standards and Guidelines

Under the guidance of global technology leaders such as Intel, IBM, HP, and Apple, PCBA strain measurement has become standardized through IPC/JEDEC-9704A guidelines. These standards provide a systematic approach to identifying defective assemblies and testing processes, ensuring that manufacturers can effectively monitor and control mechanical stresses during production.

Purpose of Strain Gage Testing

Strain gage testing is essential because solder joints are particularly sensitive to mechanical stress. As the use of lead-free PCB materials and higher interconnect densities become more prevalent, the risk of damage due to warpage increases. Additionally, incomplete cracking may not immediately cause PCBA failure, making it undetectable through standard functional tests. By effectively monitoring and controlling mechanical stresses, manufacturers can significantly reduce the incidence of defective products reaching end customers.

PCBA Strain Measurement Solution for Stress Testing Instruments TSK-32-16C-12

Visit the Dongguan Veshay Laser Technology Co., Ltd Store

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
Model: TSK-32-16C-12
Max Channel: 32
Current Channel: 16
Impedance: 120 Ohm

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

Document icon Download Data Sheet Download icon

Features

  • Comprehensive Strain Measurement Solution: Our product offers 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, the industry benchmark for PCBA strain gage testing, ensuring high-quality and standardized testing procedures.
  • Wide Application Range: Suitable for various processes including SMT assembly, panel cutting, manual operations, rework and repair, connector installation, and PCB testing.
  • Prevention of Common Failures: Helps identify and prevent common mechanical stress-induced failures such as cracked solder balls, circuit damage, and substrate cracks.
  • Cost-Effective Testing: Early detection of strain issues can save significant costs, adhering to the 1-10-100 rule, where early design-phase solutions are far more economical.
  • Enhanced Product Reliability: By monitoring and controlling mechanical stresses, manufacturers can reduce defective products, ensuring higher reliability for end customers.
  • Adaptable to Modern Materials: Effective for lead-free PCB laminate materials and high interconnect density designs, addressing modern manufacturing challenges.
  • Proven Track Record: Supported by global manufacturers like Intel, IBM, HP, and Apple, our solution is trusted and widely adopted in the industry.

Applications

  • Surface Mount Technology (SMT) Assembly Optimization
    Use PCBA strain measurement to quantify bending and warpage during SMT reflow, component placement, and cooling. Identify assemblies or processes that exceed IPC/JEDEC-9704A recommended strain limits to prevent cracked solder joints, pad lifting, and package damage in BGA, CSP, QFN, and other fine-pitch components.
  • Wave Soldering and Through-Hole (DIP) Process Control
    Monitor mechanical stress as boards pass through wave soldering, dip soldering, and selective soldering. Strain gage data helps optimize conveyor support, fixture design, and thermal profiles to reduce board bowing, solder joint fractures, and through-hole lead damage.
  • Panelization, De-Paneling, and PCB Cutting Evaluation
    Measure strain during V‑cut (V‑score) separation, routing, punching, and manual breaking of panels. Verify that depaneling methods, tooling, and fixtures keep strain within IPC/JEDEC-9704A and Intel strain guidelines to avoid microcracks, Y‑cracks, and 45° cracks in components near board edges and score lines.
  • Manual Handling, Rework, and Repair Process Assessment
    Quantify strain induced by manual bending, flexing, and improper board handling during inspection, cleaning, connector plugging/unplugging, and touch-up work. Use results to develop handling rules, training, and tooling that minimize hidden damage and intermittent field failures.
  • Connector and Socket Insertion Force Characterization
    Evaluate stress on PCBAs during insertion and extraction of high-force edge connectors, press-fit connectors, mezzanine connectors, and card sockets. Strain measurement guides connector placement, board thickness selection, stiffener usage, and support point design to prevent pad cratering and trace cracking.
  • Mechanical Assembly and System Integration
    Analyze strain during enclosure assembly, chassis mounting, and stacking of boards or modules. Optimize screw locations, torque settings, stand-offs, and clamp designs so that tightening hardware or misaligned housings does not warp the PCB and damage solder joints or laminates.
  • Heat Sink, Shield, and Mechanical Hardware Installation
    Measure board deflection and local strain caused by heat sink clip forces, spring-loaded retainers, metal shields, and heavy mechanical components. Use data to refine heat sink mounting schemes, clip stiffness, and support structures, reducing component cracking and substrate damage.
  • DIMM, PCIe, and Daughterboard Card Installation
    Characterize strain generated when inserting or removing DIMMs, PCI/PCIe cards, and other plug-in daughterboards. Ensure that slot location, support rails, and user insertion paths do not induce overstrain in the motherboard, backplane, or module boards, improving reliability in servers, PCs, and telecom systems.
  • In-Circuit Test (ICT), FCT, and Functional Test Fixture Design
    Evaluate the strain imposed by test fixtures, probe forces, vacuum clamping, and mechanical supports during ICT, FCT, boundary scan, and equivalent functional tests. Data-driven fixture optimization prevents over-bending of boards and recurring failures that only appear under test conditions.
  • Drop, Vibration, and Shock Test Correlation
    Use strain gages to correlate mechanical loading during drop tests, vibration profiles, shock events, and transportation simulations with solder joint and laminate damage. This supports robust product qualification for mobile devices, automotive ECUs, industrial controllers, and aerospace electronics.
  • Reliability and Qualification Testing of New Designs
    Apply strain measurement early in the design phase to verify that new PCB layouts, stack-ups, and component placements can tolerate expected assembly, test, and field loads. Reduce design spins by identifying mechanically weak regions and validating design-for-reliability (DfR) strategies before mass production.
  • Material and Stack-Up Selection Validation
    Compare strain behavior of different PCB laminates, copper thicknesses, and stack-up configurations, especially for lead-free and high-density interconnect (HDI) designs. Determine which materials minimize warpage and mechanical stress under thermal cycling and mechanical loading.
  • Design for Manufacturability (DFM) and Cost Reduction
    Integrate strain measurement into DFM reviews to find cost-effective ways to lower stress: repositioning critical components, adjusting cut-outs, adding stiffeners, or changing panelization. Avoid late-stage failures that are much more expensive to fix following the 1–10–100 rule.

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 include cracked solder balls, circuit damage, warped pads, cracked substrates, and capacitor Y-cracks and 45° cracks.
What is the IPC/JEDEC-9704A guideline?
The IPC/JEDEC-9704A is a guideline for Printed Circuit Assembly Strain Gage Testing, issued by IPC and JEDEC, which provides systematic steps to perform PCBA strain testing.
Why is strain gage testing important for solder joints?
Solder joints are sensitive to strain, and stress-induced warpage can lead to fractures. Strain gage testing helps identify and mitigate these issues.
How does the cost of addressing PCBA issues change over time?
Addressing PCBA issues early in the design phase can cost as little as 1 dollar, but costs increase to at least 10 dollars during manufacturing and 100 dollars or more during production.
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.
What is the significance of the '1-10-100' rule in PCBA measurement?
The '1-10-100' rule signifies that the cost of solving a problem increases significantly the later it is discovered, emphasizing the importance of early detection and measurement.

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

Similar Products

Request Quote