Electronic Components Metrology Solution
Quality Inspection and Metrology for Electronic Components
The electronic components industry is the foundation of modern technology, yet it faces an increasingly volatile landscape of technical and environmental demands. As devices become smaller and more powerful, the margin for error effectively vanishes.
Challenges in Electronic Components
Creep-Fatigue in Solder Joints
Solder interconnections experience combined creep and fatigue during thermal cycling and vibration, causing crack initiation and eventual fracture.
CTE Mismatch Stress
Different thermal expansion rates between PCBs and components create cyclic stresses, accelerating brittle intermetallic layer growth and reducing solder joint fatigue life.
Chloride and Galvanic Corrosion
High humidity and salt environments cause localized pitting and galvanic corrosion in micro-interconnections, especially wire bonds, weakening connections over time.
Conductive Anodic Filament (CAF) Formation
Moisture-driven electrochemical migration in high-density PCBs forms conductive filaments that cause intermittent shorts and dielectric breakdown.
Microstructural Aging of Lead-Free SAC Solder
Thermal aging coarsens Ag3Sn precipitates and thickens Cu6Sn5 layers, lowering strength and ductility and increasing brittle fracture risk.
Brittle Fracture from Shock and Vibration
High-strain-rate mechanical shocks and vibration concentrate stress at package corners and chip interfaces, causing rapid crack propagation and sudden failure.
Applications
Printed Circuit Board (PCB) Production and Assembly
Metrology is essential for verifying high-density component placement and ensuring conductive patterns on PCBs match design specifications. Advanced 3D scanning and optical inspection systems confirm precise alignment and correct etching or copper deposition, preventing signal interference and ensuring reliable board performance as routing becomes increasingly dense.
Solder Joint Integrity and Internal Defect Analysis
Solder joints are often the weakest link in electronic packaging, vulnerable to voids, cracks, and delamination. Industrial CT metrology enables non-destructive inspection of these hidden structures, detecting issues like thermal cycling-induced cracking or popcorning before they cause complete failure.
Passive Components (Resistors and Capacitors)
As electronic components continue to miniaturise, metrology is used to verify the dimensions of passive parts like resistors and capacitors. High-precision inspection systems ensure these components meet strict size requirements, which is essential for successful automated pick-and-place assembly
Reverse Engineering and Prototyping
When CAD data for legacy electronic components is unavailable, metrology enables maintenance, repair, and remanufacturing (MRO). 3D laser scanning captures the exact geometry of obsolete or damaged parts, creating accurate digital twins for reproduction or improvement—ensuring older critical systems remain operational.
Structural Housings and Enclosures
Advanced 3D scanning and coordinate measurement ensure that plastic casings and metal enclosures provide a perfect fit for sensitive internal parts. Accurate dimensions are critical for aligning internal components and protecting the device from environmental hazards such as moisture, dust, or mechanical impact
Electromechanical Switches and Relays
Metrology helps maintain the integrity of electromechanical parts, including switches and relays, by checking the accuracy of moving parts and contact surfaces. Surface finishes, such as electroplating, are also measured to ensure proper conductivity and resistance to wear during the component’s operational life
How Metrology Helps
Metrology is indispensable for identifying defects in electronic components, ensuring that parts remain within strict tolerances to prevent malfunctions or operational failures,. By determining the precise X, Y, and Z coordinates of specific points, metrology systems can detect deviations from designs at an early stage.
High-Speed Non-Contact Optical Inspection
Vision-based systems offer high-precision, non-contact inspection for sensitive components like silicon chips and PCBs. They detect surface defects in real time—such as missing parts, misalignment, or insufficient solder paste—and measure critical dimensions like line widths and gold finger spacing to prevent performance issues in high-density circuits.
Internal Structural Analysis via Computed Tomography
Industrial Computed Tomography (ICT) enables non-destructive inspection of internal structures, allowing manufacturers to “look inside” components without damage. It detects hidden defects such as voids, pores, and micro-cracks in multi-layer assemblies. By reconstructing a full 3D volume model, ICT evaluates internal solder joints and high-concentration features like pinholes that surface scanning cannot access.
Microscopic Characterisation of Material Degradation
Scanning Electron Microscopy (SEM) is used to inspect the microstructure of electronic interconnections, detecting early crack initiation and monitoring intermetallic compound (IMC) growth that can cause brittle fractures. SEM also quantifies selective and pitting corrosion on submicron wire bonds, revealing how harsh environments can lead to failure over time.
Dimensional Verification and Tolerance Mapping
Coordinate metrology uses tactile or scanning probes to verify complex geometries within single-digit micron tolerances. It ensures pin coplanarity and solder bump height for stable electrical contact. By comparing parts to CAD models, deviations are detected early, reducing rejects and preventing assembly failures.
Electrical Performance and Resistance Diagnostics
Metrology also includes measuring electrical properties like voltage, current, and resistance to verify component functionality. High-precision multimeters and oscilloscopes diagnose signal behaviour and confirm compliance with specifications. Tracking resistance changes is also a key method for detecting fatigue crack growth and interconnection failure during reliability testing.
Environmental and In-Process Monitoring
Integrated metrology continuously monitors manufacturing conditions and process parameters to prevent defects before they occur. Data loggers track temperature and humidity to avoid moisture-related issues like popcorning or delamination during reflow. Monitoring machine axis positions and motor current provides real-time insight into tool stability, helping detect breakage or mechanical issues that could affect component quality.
Why Use ZEISS Metrology Equipment for Electronic Components
Choosing the right metrology equipment is critical for controlling variation in electronic component manufacturing and ensuring reliable, repeatable measurement results across production environments.
Holistic Solutions Across the Production Lifecycle
ZEISS provides a connected metrology portfolio across the electronics value chain—design verification, mass production inspection, and failure analysis. With specialised systems like industrial microscopes, 3D scanners, CMMs, and industrial CT, manufacturers can optimise processes and reduce product rework.
Deep Insights via Non-Destructive Internal Inspection
A key advantage of ZEISS equipment is the ability to “reveal the unseen” through industrial CT. Systems like METROTOM enable non-destructive inspection of internal structures and hidden defects without part preparation. This is critical for evaluating high-concentration features such as pinholes and internal solder joints in complex assemblies.
Precision Engineering for Miniaturised Components
As camera modules and silicon chips shrink, ZEISS delivers high-resolution measurement capabilities to maintain tight tolerances. Solutions like GOM Scan 1 are designed for fast, accurate scanning of small to medium parts in confined spaces, ensuring structural components such as smartphone housings fit perfectly even in tight assemblies.
Root Cause Analysis and Yield Improvement
ZEISS metrology goes beyond measurement to identify the root causes of failures and improve product yield. Their systems enable detailed defect detection and failure analysis, helping manufacturers understand why a part failed and how to prevent it. This proactive approach reduces customer complaints and lowers production costs.
Advanced Software Integration
ZEISS INSPECT complements ZEISS hardware by simplifying the evaluation of tactile, optical, and X-ray data. It enables accurate nominal-actual comparisons against CAD models to ensure parts meet specifications. Visualising volume data and trend analysis across machines accelerates decision-making on the shop floor.
Portable 3D Laser Scanning
For large electronic structures like base station frames, smartphone housings, or automotive battery packs, the ZEISS T-SCAN hawk 2 delivers metrology-grade precision in a lightweight handheld format. Its Satellite Mode enables accurate scanning of objects several metres long without traditional markers, while projection mode helps operators maintain optimal working distance for precise data capture.
Our Metrology Equipment for Electronic Components
Our metrology systems provide fast, accurate, and traceable inspection for electronic components across design validation process development, and full production.
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Contact us today for expert guidance and discover how our metrology solutions can elevate your accuracy and efficiency