Why Is MES System Important for SMT

Why Is MES System Important for SMT

SMT, the abbreviation of Surface Mount Technology, which is the most commonly adopted technology and process in the PCB assembly industry. It is a kind of process technology that electronic components are mounted on the PCB board through professional equipment. Generally , MES system plays an essential role in monitoring the operating status of equipment and the progress of processing procedures. 

Thus, in this article, we will learn that why MES system is important for SMT.

Table of Contents
How SMT line works

Features of SMT production workshop on electronic manufacturing

SMT Production Workshop
SMT Production Workshop

Before getting to know the importance of MES system for SMT, we need to know something about SMT production workshops. Here are some features of SMT production workshop on electronic manufacturing.

1. High density and high speed
The electronic components in the SMT production workshop are generally compact and densely arranged on the PCB. This requires the mechanical equipment of the SMT production workshop to have high precision and high speed, which ensure that it can accurately paste the components on the designated position. Due to the continuous advancement of electronic digital product technology, SMT production workshops need to continuously better adapt to components and higher precision requirements.

2. Automated production
The SMT production workshop is an important link in automated production. Automated equipment, such as placement machines, reflow ovens, testing equipment, etc., are widely used to improve production efficiency and consistency. Automated production can reduce labor participation, reduce error rates, and improve production efficiency.

In addition, with the help of automated production, online monitoring and real-time data recording can be realized, which is conducive to quality management and subsequent analysis.

3. Diversification and high flexibility
SMT production workshops need to adapt to the production of different types of products, so they need to be highly flexible. Due to changes in market demand, SMT production workshops need to be able to quickly switch production lines to produce different types of products. At the same time, the production workshop also needs to apply a variety of assembly processes, such as patch, wave soldering, manual assembly, etc. Therefore, Choose the appropriate process technology to fit different situations.

4. Quality control and traceability
Due to the high-quality requirements of electronic digital products, SMT production workshops must strictly control product quality. The production workshop needs to implement a comprehensive quality management system, including full-process inspection from incoming materials to finished products, timely repair or removal of defective products, and monitoring and feedback on key quality indicators.

In addition, the production workshop also needs to establish a complete traceability system to record the production process of each product and the information of the components used, which is conducive to traceability and problem rectification.

5. Environmental control
The SMT production workshop has high requirements on the surrounding environment. Electronic components are particularly sensitive to environmental factors such as temperature, humidity and static electricity. The production workshop needs to maintain relatively stable temperature and humidity standards to ensure the stability and reliability of its components. Moreover, in order to prevent electrostatic damage to components, the production workshop must also take corresponding anti-static measures, such as ground grinding, anti-static clothing and related facilities.

Based on the above analysis, we can see that the SMT production workshop has the features of high density, high speed, automated production, diversification and high flexibility, quality control and traceability, and environmental control. Understanding and adapting to these features are the important factor to ensure the smooth operation of SMT workshop production.

Why is MES system important for SMT?

MES System
MES System

As an important process field in the electronics industry, SMT is facing complex production management challenges. Using the MES system in SMT workshop has the following benefits.

1. Process control and coordination
MES system realizes the control and coordination of the entire manufacturing process in the SMT production line. It can monitor the operating status of equipment and the progress of processing procedures, and optimize production scheduling based on real-time dynamics. Based on real-time monitoring and feedback, the MES system can ensure the stability and reliability of the manufacturing process.

2. Real-time data collection and analysis
MES system automatically collects, analyzes and processes the data of each production node in the production line. According to the collection and analysis of key data information, such as productivity, yield, working hours, etc. Besides, it can provide managers with an accurate decision-making basis. At the same time, the system can assist enterprises to create databases to provide support for future data mining and analysis.

3. Quality management and traceability
The SMT industry has extremely high requirements on product quality, and the MES system can monitor and manage the quality during production and processing. It can realize real-time detection and feedback. When an abnormal situation is detected, it can send an alarm in time, stop work and wait for materials, and provide corresponding data traceability data to assist enterprises in accurately locating and solving problems. Also, the MES system can record and query the production process of the product and provide complete traceability data.

4. Automation and Intelligence
With the development of automation technology and digital informatization, the MES system is becoming more and more intelligent. It can be integrated with other automation equipment and systems to realize automation control and IoT communication. According to intelligent algorithms and predictive analysis, the MES system can detect potential problems in advance and take corresponding measures to realize automatic control and optimization of the manufacturing process.


All in all, the MES system in the SMT industry has the features of process control and coordination, real-time data collection and analysis, quality management and traceability, automation and intelligence. It plays an important role in improving production efficiency, ensuring product quality, and reducing production costs, which is good for promoting the stable and sustainable development of the SMT industry.

IBE, founded in 2005, is a profession and experienced PCB assembly service providers. We currently have 4 factories in China, Vietnam and the USA with more than 75,000 square meters of manufacturing facilities worldwide. Our factory in Vietnam is capable of mass production order demand that we have equipped with 9 automated SMT production lines, 2 DIP lines, 12 final assembly and test production lines, and 2 packaging lines. If you have any confusion about SMT, please feel free to contact us.


SMT, Surface-mount technology, is a method to directly mount the electrical components onto the surface of a PCB board. 

MES, Manufacturing Execution System, is a kind of system oriented to the production management of factories or workshops for realizing the management and optimization of the production, energy, equipment, safety, supply chain and other businesses of the entire factory.

  • Process control and coordination
  • Real-time data collection and analysis
  • Quality management and traceability
  • Automation and intelligence

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