Electrostatic protection materials and electrostatic protection facilities
Therefore, in anti-static materials and anti-static facilities, products derived from these three methods can be divided into anti-static meters, grounding system anti-static products, shielding anti-static packaging, transportation and storage of anti-static materials, Neutralizing static elimination equipment, and other anti-static supplies.
A. Anti-static instrument
1. Wrist strap / hamstring strap / anti-static shoes comprehensive tester Purpose: to detect whether the wrist strap, hamstring strap, anti-static shoes meet the requirements.
2. When testing foot straps and anti-static shoes, a metal plate and a wire connected to the meter should be added.
3. In addition to static ion fan detector use: regularly check the balance and decay time of the ion fan to ensure that the ion fan is working within a safe range of indicators.
4. Electrostatic field tester purpose: measure the electrostatic field to reflect the existence of static electricity, and read in the form of voltage to test the electrostatic strength of the environment. Generally affected by the environment and the transient characteristics of static electricity, it is difficult to truly reflect the actual situation.
5. The purpose of the electrostatic shielding bag tester: to detect the shielding effect of the electrostatic shielding bag.
6. Purpose of surface resistance measuring instrument: measuring the surface resistance and volume resistance of materials.
B. Grounding anti-static products
1. Anti-static wrist strap: It is widely used in various operating positions. There are many types of wrist straps. It is recommended to generally use a wrist strap with a 1 megaohm resistance, and a certain margin should be left for the length of the wire.
2. Anti-static hamstring/anti-static shoes: After the workshop uses an anti-static floor, anti-static shoes should be equipped. It is recommended that the workshop should mainly wear anti-static shoes, which can reduce the introduction of dust. The operator combined with an anti-static wrist strap will have a better effect.
3. Anti-static table mat: used for laying on the surface of each worktable, each table mat is connected with an anti-static ground after a 1 megohm resistor is connected in series.
4. Anti-static floor:
Anti-static floor is divided into: PVC floor, epoxy floor, raised floor, ceramic floor.
Anti-static wax and anti-static paint: Anti-static wax can be used on various floor surfaces to increase anti-static function and make the floor brighter and cleaner.
Anti-static paint can be used on various floor surfaces, and can also be applied to various shelves, turnover boxes and other containers.
C. Shielding anti-static packaging, transportation and storage materials
1. Anti-static turnover box, anti-static component box: used for turnover, transportation and storage of veneers and parts in the workshop.
2. Anti-static shielding bag: used for packaging, transportation and storage of veneers and components, with a certain degree of moisture-proof effect.
3. Anti-static tape: used in various packaging boxes, etc.
4. Anti-static IC tube and IC tray: used for storage and handling of IC components in the production workshop. It is forbidden to store IC in the open before use; or unpack and transport.
5. Anti-static racks, trolleys and workbenches: Anti-static racks and trolleys are widely used in the turnover and handling of veneers and components in electronic assembly workshops. Anti-static racks and workbenches must be grounded, and trolleys must have metal chains in contact with the ground.
6. Anti-static work clothes and shoes: In processing workshops with static sensitive components and certain cleanliness requirements, employees should generally be strictly required to wear anti-static work clothes and work shoes.
7. Anti-static finger cots: If operators need to hold static-sensitive components frequently, they should wear anti-static finger cots.
D. Neutralization equipment: ion fan, air gun, tuyere, air curtain, ion rod, etc.
Floor and table mat: anti-static (PVC, EPOXY, activity, ceramic) floor, anti-static table mat
Ion eliminator: ion fan, ion wind gun, ion wind nozzle, ion rod, ion wind curtain, anti-static soldering station, etc.
Testing equipment: hand/ankle strap tester, surface resistance tester, electrostatic field tester, shielding tape tester, electrostatic voltage tester, human resistance comprehensive tester, grounding protection monitor
EDS packaging materials: shielding bag, conductive sponge, pink anti-static bubble bag, mesh bag, IC strip tube
Anti-static clothing: work clothes, gloves, finger cots, shoes, hats
Anti-static container: anti-static component box, anti-static tray, anti-static turnover box, anti-static rack
Anti-static storage and transportation tools: anti-static trolley, anti-static shelf
Other anti-static: wax, paint, chair, brush, desiccant, tweezers, suction pen, warning signs