Electronics Form Scan and Dimensional Analysis of Printed Circuit Boards (PCBs)

Executive Summary

As the demand for miniaturized and high-performance electronics continues to grow, ensuring the dimensional accuracy of printed circuit boards (PCBs) becomes increasingly critical. EDM Intelligent Solutions offers high-resolution, non-contact 3D metrology services that allow for precision inspection of PCB surfaces and geometries. This report outlines our four-step form scan methodology using the MVi5 3D Metrology Center for PCB inspection.

Overview of 3D Metrology Capabilities

Our metrology systems provide µm-level resolution and support in-depth, non-destructive dimensional measurement of PCBs and other electronic components. Using 3D profile slicing, we extract detailed measurements of features such as slot widths, hole positions, step heights, radii, and angles—ensuring complete geometric verification.

Key capabilities include:

Non-contact 3D form scanning with micron precision
Cross-sectional analysis of PCB height, slot geometry, and surface flatness
Measurement of warpage, deformation, and bow
Support for component alignment and assembly verification

Application Case Study: PCB Form Scan

Component Overview

Type: Printed Circuit Board
Material: FR4 (Printed Circuit Board)
Metrology System: MVi5 3D Metrology Center
Metrology Service: Form Measurement

Form Scan Inspection Process

Step 1: Capture Full 3D Data

The MVi5 3D Metrology Center performs a non-contact scan of the PCB to generate a full 3D point cloud. This scan captures fine geometric features and surface topography at the micron scale.

Step 2: Generate Cross-Sectional Profiles

From the 3D data, multiple cross-sectional profiles are created through key PCB areas. These profiles reveal vertical step changes, slot depths, hole positions, and alignment features.

Step 3: Form Measurement and Analysis

Critical dimensional values such as planarity, warpage, and edge alignment are measured using the extracted profiles. Tolerances are verified against design specifications.

Step 4: Reporting and Documentation

Measurement results are compiled into a digital inspection report, with dimensional visuals and tabulated data. This ensures traceability for quality assurance and process validation.

Results & Value Delivered

Accurate form measurement of complex PCB features
Detection of bow, warp, or deformation during manufacturing
Non-destructive analysis ideal for sensitive electronic materials
Supports traceability and documentation for quality audits

Conclusion

EDM Intelligent Solutions’ 3D metrology capabilities offer electronics manufacturers the ability to detect dimensional issues early, ensure conformance to design, and improve product reliability. Our advanced form scan methods provide actionable data with the precision and reliability required for modern PCB inspection.

About EDM Intelligent Solutions

EDM Intelligent Solutions provides advanced metrology and precision manufacturing services for the electronics, aerospace, medical, and scientific sectors. Our non-contact inspection technology and automated measurement systems support high-quality production and quality assurance programs.