Posted by Edward: Tue Jul 25, 2006 10:44 pm    Post subject: question about handler grounding

I have noticed that most of our handlers have no grounding. It's funny to see that most of the operators are using ground strap without knowing that the handler has no connection to the ground. Could this affect good units to fail once it has been tested? I'm just a newbee to this company. Hope you can suggest to this issue. Thanks!

Posted by Sunchao: Wed Jul 26, 2006 8:52 am    Post subject:

Yes, actually the grounding of handler should be connected with real ground. Otherwise, the electrostatic will destroy the testing device. Meaning the ESD is out of control in your company, you should mention your equipment to fix it immediately.

Posted by Testeng99: Sat Jul 29, 2006 2:57 am    Post subject:

Or it's possible also that your machines are grounded through a third wire in its plug (neutral). This is why you can't see a ground wire. Many companies do this, but they must make sure this neutral wire is also connected to the ESD system ground. Maybe you can ask your eqpt engg the question: how are our machines grounded for ESD protection?