What are the dangers of not wearing a cleanroom clothing in an electronics factory?
Everyone thought that wearing a clean clothes and wearing only pure cotton overalls would prevent the static accumulation of clothing. In fact, this view is one-sided. This is because only when the relative humidity of the air is higher than 50%, but when the relative humidity is relatively low, the charged amount of the pure cotton product will increase, so it cannot be expected to use the pure cotton product to eliminate the static electricity hazard under any circumstances.
In normal production activities, between the clothing and the surface of the outside material (such as countertops, chairs, appliances, etc.), between the layers of clothing, between the skin and the inner layer of clothing, or even between the ground and the sole when walking The clothing and shoes will be charged due to frequent friction and contact, especially when wearing high-insulation chemical fiber clothing.
Just because the human body is an electrical conductor, the electrical conduction on the garment causes the human skin to conduct electricity around the body and also forms a static voltage. In the case of dust-free clothing, there are two discharge channels; one is the discharge between the quality inspection and the ground conductor, and the other is the discharge between the work clothes and the ground conductor. Both of these discharges can cause damage to static-sensitive devices. Although the anti-static wrist strap can eliminate the former discharge danger, it cannot eliminate the latter discharge danger. Because the wristband can only remove static electricity from human skin, but it can not leak static electricity from clothing with strong insulation. Nowadays, many people do not pay attention to the static electricity of the clothing, so the operator needs to wear a clean clothes.
