X-ray Inspection Systems for PCBs

What is an X-ray inspection Machine for PCB?  

X-ray inspection for printed circuit boards (PCBs) that uses X-ray radiation to inspect the internal structure of the PCBs, allowing the identification of defects such as solder bridges, voids, and other anomalies appearing in tightly constrained components like ball grid arrays (BGAs) and quad flat no-lead (QFN) packages. X-ray inspection systems are very critical for PCB manufacturing quality control, as they provide detailed imaging of solder joints, connections, and internal layers and allow for the assurance that each component is functioning correctly before the final assembly. It is the best method for the detection of hidden defects in PCB assemblies that have no visibility via traditional optical inspections. 

X-ray inspection equipment consists of an X-ray tube, a base or stage to hold and manipulate the PCB, and a detector that captures and converts X-ray photons into images. The X-ray tube emits photons that pass through the PCB sample. The detector registers these X-ray photons to produce an image; heavier elements appear darker due to increased absorption, while lighter elements appear more transparent. This contrast is what greatly facilitates defect detection and identification by an inspector. More advanced systems can have the ability to generate both 2D and 3D images which can be in a real-time online inspection or extracted offline for deeper analysis.  

Key specification of X-Ray Inspection 

• X-ray tube technology: It is the type of X-ray tube used by the equipment to produce X-rays 
• Inspection Area: These are the dimensions of inspection zones of the machine to work with different-sized circuit boards. 
• Anode Voltage/Current: These are electrical parameters of the X-ray tubes used by the machine to generate stable X-rays. 
• Magnification: This is the magnification power of the machine’s detector used for identifying hidden problems in the PCB. 
• Size of Focal Spot: The size of the spot where the equipment can focus to identify defects.  
• Resolution: The shortest distance that can be distinguished by the machine between two points on a PCB, typically measured in micrometers (µm), determines the machine's inspection precision. 

PCB Directory has listed X-ray inspection equipment for PCBs from the leading manufacturers in the industry and made it easy for users to find equipment based on their requirements. You can specify the mode of operation, magnification, and other parameters to find equipment that meets your requirements. You can also view X-ray inspection equipment specifications, download the spec sheets, and get quotes on matching products. Quotes requested via the PCB Directory are routed to the manufacturers.

Click here to explore X-ray Inspection System Manufacturers.