Static electricity poses significant challenges in the electronics industry, primarily through Electrostatic Adsorption (ESA), Electrostatic Discharge (ESD), and Electronic Magnetic Interference (EMI). These phenomena not only lead to pollution but also device breakdown and electronic interference, thereby compromising product quality and reliability.
ESA results in serious pollution within clean or ultra-clean workshops necessary for IC production. Despite efforts to maintain cleanliness, even minute dust particles, smaller than 0.1μm, can lead to product defects if they adhere to surfaces larger than the line width.
ESD, a consequence of charge accumulation, can cause immediate breakdown of semiconductor devices. Though functional damage may not be apparent initially, it undermines component reliability, leading to significant financial losses annually, estimated in billions of dollars.
ESD generates radio waves that interfere with microprocessors, resulting in erratic program instructions, data corruption, and obscure error messages. Despite being often overlooked, such interference can have severe repercussions once malfunctions occur.
While static electricity poses inherent risks to electronic devices, effective control and elimination strategies exist to mitigate these risks.
Elimination and Control of Static Electricity.
1. Prevention of Charge Accumulation: Employ measures to prevent or reduce electrostatic discharge by addressing charge generation and leakage through methods such as ionization.
2. Rapid Elimination of Existing Charges: Utilize static eliminators to neutralize charges on insulating objects and implement ground leakage methods for conductive objects to ensure complete charge elimination.
1. Minimization During Production: Implement preventive measures during material selection, equipment installation, and operational management to minimize static electricity generation and accumulation, thereby reducing potential harm.
2. Electrostatic Grounding: Enhance conductance to facilitate charge leakage to the ground, mitigating the buildup of static electricity.
3. Use of Grounded Shields: Isolate charged objects from surrounding environments using grounded shields to prevent the spread of electric fields and protect against external influences.
4. Utilization of Static Eliminators: Employ static eliminators, such as those offered by KESD, to neutralize charges on objects, ensuring smoother surfaces and cleaner environments, thus reducing the risk of discharge.
