What is an anti-static grid bag
The harm caused by static electricity to the production of electronic products:
1. Electrostatic adsorption of dust in the air can easily cause short circuits between device leads
2. Electrostatic discharge damage makes the components damaged and cannot work
3. Component damage due to heat generated by electrostatic discharge fields or currents
4. The magnitude of electrostatic discharge is very large. Electromagnetic fields with extremely wide spectrum (from tens of megabytes to several gigabytes) cause electronic products to be damaged by electromagnetic interference.
5. Rework and repair of products damaged by electrostatic discharge will increase production costs and affect the economic benefits of enterprises
Static electricity is a static charge. Static electricity is formed when charges are accumulated on an object or surface, and charges are divided into two types: positive and negative. However, whether it is positive or negative static electricity, when an object with static electricity contacts a zero-potential object (grounded object) or an object with a potential difference with it, charge transfer will occur, which is the phenomenon of spark discharge that we see every day.
Causes of static electricity:
Any substance is composed of atoms, and the basic mechanisms of atoms are protons, neutrons and electrons. Scientists define protons as positively charged, neutrons uncharged, and electrons negatively charged. Under normal conditions, the number of protons in an atom is the same as the number of electrons, and the positive and negative charges are balanced, so it appears uncharged to the outside world. However, due to external effects such as friction or in the form of various energies such as kinetic energy, potential energy, thermal energy, chemical energy, etc., the positive and negative charges of the atoms will be unbalanced.
The better the insulation of the material, the easier it is to generate static electricity. Because air is also composed of atoms, it can be said that static electricity can be generated at any time and anywhere in people's lives. It is almost impossible to completely eliminate static electricity, but there are steps you can take to control static electricity so that it does not cause harm.
Static electricity can be generated by friction: in daily life, static electricity can be generated when any two objects of different materials contact and then separate, and the most common way to generate static electricity is to generate electricity by friction. The better the insulation of the material, the easier it is to use triboelectricity. In addition, any two objects of different substances contact and then separate, can also generate static electricity; it can also be generated by induction: For conductive materials, because electrons can flow freely on its surface, if it is placed in an electric field, Due to the repulsion of the same sex and the attraction of the opposite sex, the positive and negative electrons will be transferred; it can also be transferred through conduction: for conductive materials, since electrons can flow freely on its surface, such as contact with a charged object, charge transfer will occur. Anti-static mesh bag is made of anti-static transparent film and black conductive ink for mesh conductor printing. Through special treatment, it can resist external static electricity and become surface resistance. It is mainly used for PC boards, computer motherboards, communication products, etc.
Outer layer resistance: 10 to the 3rd power - 10 to the 5th ohm
Inner layer resistance: 10 to the 6th power - 10 to the 9th ohm