In the fast-paced field of electronic manufacturing, even minor disturbances can lead to significant failures. Electrostatic discharge (ESD) and electrical overstress (EOS) are one of the most hidden threats to efficiency and product integrity. The static electricity management plan of SCS is far superior to typical static electricity control measures and addresses these challenges through a scalable Industry 4.0 monitoring solution.

Hidden threats of static electricity, ESD, and EOS
Static electricity or electrostatic charge is generated due to an imbalance of charges within or on the surface of a material. Static electricity or electrostatic charges are caused by frictional charges; It is a phenomenon that occurs through contact and separation.

Electrostatic discharge (ESD) originates from static charges, so in ESD control, we should strive to eliminate or minimize static charges as much as possible. When two objects at different levels of electrostatic charge (potential) approach each other, electrostatic discharge occurs, that is, spontaneous rapid charge transfer. This phenomenon generates heat, which can be felt by people if the voltage is high enough, but if the voltage is extremely low, it can melt the circuits in electronic components. In daily life, electrostatic discharge may only be a minor issue, but in the manufacturing process of electronic products, it can bring devastating consequences. Electrostatic discharge (ESD) can damage or destroy sensitive components, resulting in expensive maintenance costs, production delays, and reduced product reliability.

Electrical overstress (EOS) refers to electrical signals applied to circuits or equipment that exceed normal operating parameters and, over time, can cause damage similar to electrostatic discharge events. The reason for this phenomenon may be due to the disappearance of the grounding connection, or the presence of high-frequency noise or electromagnetic interference (EMI) on the grounding.

These three situations are difficult to control, eliminate, or detect because these three phenomena and the damage they cause cannot be visually observed.

The challenges faced by the electronics industry
Component damage and quality control
Modern electronic components are highly sensitive to electrostatic discharge. Even minor ESD events can cause microchip or circuit board failures, resulting in significant economic losses. Even worse, the company may be affected by potential ESD defects. Although the components may be weakened or damaged due to ESD events and can still maintain normal functionality during testing, they may experience malfunctions or intermittent faults after delivery to customers. Therefore, the above-mentioned bad situations will occur. This will not only increase warranty costs, but also lead to customer disappointment and seriously affect the company's reputation.

discontinue production
Usually, investigating the causes of damage related to static electricity and finding corresponding solutions is both time-consuming and laborious. During the process of diagnosing and solving problems, it may lead to production line shutdowns, resulting in the inability to meet deadlines and reduced production efficiency.

compliance
Not complying with ESD standards such as ANSI/ESD S20.20 may result in business losses, as many of your clients or potential future customers require compliance with at least this standard.

Control ESD on automated production lines
ESD and Human Body Model (HBM) ESD events on the control workbench have always been the main focus. So far, most electronic manufacturing has been done through machines, so the industry is constantly striving to find various measures needed to protect ESD sensitive devices during the manufacturing process.

Best Solution
So, what is the best solution to cope with the pressure of today's manufacturing environment? A system based on the following points:

Continuous detection
The SCS Electrostatic Management Plan (SMP) can be combined with three different types of continuous monitoring instruments, ionizers, and SMP network applications. Before delving into the data acquisition side of the system, we should first discuss the foundation of continuous detection in electrostatic discharge control.

The continuous monitoring device can immediately provide feedback on the status and function of different parameters used for ESD control:

Detecting human grounding through wristbands
Working face grounding
Human body voltage
Grounding and Electromagnetic Integrity (EMI) of Metal Tools in Manufacturing Environments for Semiconductors, Computer Hard Drives, Tablets, and Electronic Devices
Electrostatic voltage
ESD event
Balance and discharge time of ionizer
Compared with daily wristband testing, the advantages of workstation continuous monitoring devices are significant, providing a more efficient and reliable solution to meet the S20.20 ESD control standard. These advantages include:

Immediately detect any wristband system malfunctions to ensure that operators are immediately aware of the problem
Continuous monitoring to capture momentary faults, such as those that occur during the "intermittent" phase due to initial flexibility fatigue
Automatically check and record results without the need for manual testing, thereby reducing the risk of errors
This proactive approach helps to prevent and prevent electrostatic discharge events from damaging sensitive components in advance. Continuous monitoring can reduce the risk of ESD damage without the need for manual inspection, allowing operators to focus on their tasks and thus improve workflow efficiency and productivity.

Give equal attention to all stages of manufacturing
Effective electrostatic control requires monitoring at every stage of the manufacturing process. SMP ensures continuous inspection of all relevant parameters, including machines, workbenches, and personnel. In this plan, vigilance is maintained at all stages to prevent damage and maintain product integrity.