Monday, January 8, 2007

Introduction Of Electrostatic Discharge (ESD)

Have you ever felt ESD or Electrostatic Discharge? Answer may be YES!!! Or No!!! Because may be some of us don't know yet "What is ESD or Electrostatic Discharge?" I will give you an answer later on. Let try next question.

Have you ever felt static shock while touching metal objects such as doorknob, car, and trolley during wintertime? YES!!! Will be the answer for almost everyone. Almost everyone on earth has ever felt ESD or Electrostatic Discharge. May be some of us have never felt "Shock” or ESD or Electrostatic Discharge, let us know you.

Yes that shock is one of the Electrostatic Discharge event. And Lightning is one of the Electrostatic Discharge event by nature.


What is really meaning of ESD or Electrostatic Discharge? According to Electrostatic Discharge Association, Electrostatic Discharge (ESD) is the rapid, spontaneous transfer of electrostatic charge induced by a high electrostatic field. Usually, the charge flows through a spark between two bodies at different electrostatic potentials as they approach one another.

Sunday, January 7, 2007

How Electrostatic Discharge from our body? And tips to avoid

Separation between our shoes and floor create electrostatic charges on our bodies then discharge to doorknob because of different electrostatic potentials.

We always create electrostatic charges onto our body, while we are walking, getting off car's seat, pushing the trolley in the supermarket and etc, then there is always discharge thru metal object near by you. The different electrostatic potentials cause the discharge thru very small air gap between your body to those objects.

Most of the time we can't feel static shock because it is not high enough to the level that we can feel. Human being can feel the electrostatic discharge (ESD) at about 2,000-3,000 Volts. It is depended on individual sensitivity.

ESD from our body can be a nuisance but are not generally health risk. Attention!!! It may cause fire and explosion risk if there is a spark near by flammable atmospheres.

There was a tip that I tried during wintertime to avoid static shock or reduce severe of shock. I took car’s key or coin touch the doorknob or metal object before you touching it by your hand.

Saturday, January 6, 2007

Millions of Dollars loss cause by Electrostatic Discharge (ESD)!!!

Shock experience, ESD from our body can be a nuisance but are not generally health risk. There is some report that it may cause fire and explosion risk if there is a spark near by flammable atmospheres such as gas station and etc.

Industry pays a price for ESD problem. Not just human being can feel or experience of ESD but all those ESD susceptibility such as electronics part, semiconductor, Hard disk and etc also can feel or experience of ESD. It would damage those devices or made device malfunction. Even worst because you can't feel, hear, smell and see ESD, the level that damage your devices.

There are thousands of cases of ESD damage to sensitive product such as semiconductor, hard disk, electronics and etc. Some cases pays millions of dollars without notice. Loose their customer because reliability issue in the field. Product doesn’t work went out the door.

So we have to know and learn more about Basic Electrostatic Discharge (ESD), their cause of effect, prevention, control and finally solutions to fix ESD issue.

Friday, January 5, 2007