How to determine if the anti-static wrist strap is working properly
The cable anti-static wrist strap is the basic of the anti-static equipment, and is also a must-have item for the universally used production line. It is not only convenient in erection and operation, but also in the price. It is often affordable. With the belt and the grounding wire, the static electricity on the human body is discharged to the earth. Therefore, the wristband must be in contact with the skin during use, and the grounding wire should be directly grounded, and the grounding wire should be unobstructed to play the role. In addition to anti-static wrist straps, there are anti-static shoes, anti-static mats, anti-static alarms.
The working principle of the wireless wristband: According to the "corona discharge" effect and the principle of the tip discharge, when the accumulated charge exceeds a certain value, the potential difference is discharged to the space, thereby achieving the purpose of eliminating static electricity. There is also a screw on the outside of the unit to connect with the internal conductor loop.
A good anti-static wrist strap is made from a soft, flexible material mixed with conductive filaments. The conductive performance is good, the length can be adjusted arbitrarily, the spring grounding wire can withstand more than 30,000 environmental tests without breaking, and some poor quality anti-static wrist straps can not be used for several times to break the meeting and lose the function of releasing static electricity.
Wristband alarms, with the rapid development of semiconductor technology and large-scale integration technology, most of the electronic zero devices tend to be highly integrated. This gives the final production requirements more stringent requirements, and static elimination protection is an important part of it. The data indicates that the damage in most integrated components and semiconductor devices in actual production is due to static electricity. The electrostatic ring relies on good grounding to be *the original and *effective way to eliminate static electricity. However, when electrostatic protection is applied to the electrostatic ring, most electronic manufacturers will still have the following blind spots of static protection:
Even if the traditional type of electrostatic ring passes the inspection outside the workshop, it is impossible to know whether it is working normally during the production process; the staff of the workshop is not responsible for the electrostatic protection failure of the electrostatic ring; the enterprise is dealing with the static electricity protection and the detection is not It is true that the perfunctory situation will lead to an increase in product non-performing rate; because of the inability to know the static protection of employees, blindly adding ESD products will cause a burden on personnel and company costs. Because of the fear that the static protection of employees will fail to detect the static electricity ring of the traditional type of static electricity every two hours, it will cause manpower waste and management difficulty.
The wrist strap monitor provides real-time continuous monitoring and control of the anti-static wrist strap. This product ensures 100% monitoring of the ESD status of the operator. HWD series of ESD protection products comply with the American Electrostatic Protection Association* standard ANSI, ESD S20.20 and European Electrostatic Protection Association* standard IEC-61340, and the requirements for electrostatic grounding in the Electrostatic Protection Zone (EPA) should be ensured at all times. Effective electrostatic grounding, using the HWD series of instant electrostatic grounding system monitors, fully meets this requirement.