Definition

PCB surface treatment technology refers to the process of artificially forming a surface layer with different mechanical, physical and chemical properties from the substrate on PCB components and electrical connection points. Its purpose is to ensure good solderability and electrical performance of the PCB.

Application background

With the continuous advancement of technology, the market's demand for communication equipment, electronic wearable devices, Internet of Things, and the increasing reliance on electronic products in automobiles and other industries are driving the rapid growth of the circuit board market,

The quality control of internal PCB is becoming more and more strict, and the development and upgrading of PCB surface treatment technology is becoming more and more urgent.

PCB Surface Treatment Classification

Organic Antioxidant (OSP)

hot air leveling

sinking gold

sinking silver

Shen tin

nickel gold

HASL

PCB hybrid surface treatment technology

Application of XRF in PCB Inspection

The thickness of the coating is the most important guarantee factor in the quality of PCB products. Commonly used coating thickness measurement methods include two categories: destructive and non-destructive. Destructive thickness measurement methods include anodic dissolution coulometric method, metallographic method, dissolution weighing method, liquid flow method, drop method, etc.; non-destructive thickness measurement methods include mechanical measuring method, magnetic method, eddy current method, XRF analysis method, etc. Among them, the XRF analysis method is one of the common and popular methods in the field of coating thickness measurement because of its non-destructive, rapid and direct characteristics.

Application of INSIGHT in PCB Plant

For the detection and screening problems in the process control of PCB surface treatment, product quality inspection and other links, LANScientific provides you with efficient and intelligent XRF analysis instruments, To help customers reduce material costs, meet the requirements of industrial specifications such as IPC-4552B, IPC-4556, IPC-4554, and IPC-4553A.

In order to ensure the analysis sensitivity and speed, LANScientific INSIGHT Coating Analyzer provides users with flexible collimator options, and is also equipped with hardware such as super large measurement chamber, programmable automatic displacement sample stage, and high-performance detectors. The following is the result of using INSIGHT to test a certain group of samples.