Imaging Architectures for PCB Fabrication and SMT Assembly

Online Solutions (Imaging) Pvt Ltd. Chennai India brings over 30 years of expertise in industrial imaging, machine vision to configure and optimize automated optical inspection technologies for the electronics manufacturing industry.

PCB Fabrication Inspection

Optical inspection solutions for bare PCB manufacturing include detection of:

• • Copper trace defects, opens and shorts
  • Residual copper and etching imperfections
  • Via registration and alignment errors
  • Pad quality verification
  • Surface defects and manufacturing anomalies

SMT and PCBA Inspection

Automated inspection systems for populated PCB assemblies provide verification of:

• • Component presence and absence
  • Position, orientation and polarity
  • Placement accuracy and component shifts
  • Tombstoning and solder defects
  • Bridging and fine-pitch assembly issues

Advanced Imaging Architectures

Inspection requirements vary significantly depending on board size, throughput and defect characteristics. We configure imaging solutions using:

• • High-resolution Area Scan camera systems for component-level inspection
  • High-speed Line Scan and TDI imaging for continuous large-format PCB inspection
  • Precision fixed focal length and telecentric optics, Motorized zoom systems for variable field-of-view requirements
  • High-performance image acquisition platforms and processing pipelines

Illumination Engineering

Defect visibility is highly dependent on lighting design. Our expertise includes different lighting designs such as • Brightfield illumination, • Darkfield illumination , • Coaxial lighting systems
• Dome illumination, • Diffuse lighting techniques, • Structured illumination for reflective surfaces, • Application-specific lighting optimization for copper, solder, silkscreen and assembled boards

Customized Inspection Platforms

Every inspection application is unique. Our engineering approach considers:

• • Product complexity and PCB dimensions
  • Conveyor speed and throughput requirements
  • Critical defect classifications
  • Mechanical integration constraints with Accuracy, repeatability and scalability objectives

Leveraging technologies from leading imaging partners including Teledyne Vision Solutions and Navitar, CCS and many more companies, Online Solutions delivers tailored optical inspection systems that improve yields, reduce false rejects and support higher quality standards throughout PCB manufacturing and SMT assembly operations.