Electronics Forum | Mon Jun 29 16:53:02 EDT 2009 | Geo
I need some help in setting straight QA which owns our ESD Procedures. 1. Is the limmiting resistor for personel safety or to slow down ESD discharge? Everything I have read indicates it is for personnel safety. 2. Is it an ESD violation to have
Electronics Forum | Wed Jul 01 10:17:35 EDT 2009 | davef
So, would putting insulating pads on the test fixtures without pads make this issue go away?
Electronics Forum | Mon Jun 29 19:02:49 EDT 2009 | davef
Current limiting resistor: Personel safety Electrical equipment on the ESD matt: We need more information. Is the equipment ground of the equipment in contact with the matt? Or are the insulating pads on the bottom of the equipment in contact with t
Electronics Forum | Sat Jul 18 01:47:35 EDT 2009 | magnifico
hi guys, can anybody share any info about the maximum acceptable surface resistivity on ESD floor & table mats? Is 10G ohms still ok? thanks
Electronics Forum | Wed Jul 08 13:31:35 EDT 2009 | rway
Stephen, This link was also in my earlier post. "The wrist strap cord has a current-limiting resistor for personnel safety." http://www.intel.com/Assets/PDF/pkginfo/Ch_06.pdf
Electronics Forum | Wed Jul 01 06:29:59 EDT 2009 | rway
You are correct. The resistors are for personal safety. However, I don't think that bench top or floor mats require a 1MO current-limiting resistor. This would be necessary if a wrist strap was being used. The mats we use do have a 1MO resistor o
Electronics Forum | Wed Jul 01 11:20:19 EDT 2009 | Geo
It would, but is it correct? This is what QA came back with. "Think of a chassis, connected to earth ground, sitting on top of a mat. In this situation, we are bypassing the meg-ohm resistor to ground." If the mat, the operator and the test equipmen
Electronics Forum | Wed Jul 08 06:02:59 EDT 2009 | stepheniii
Advertisements are not always 100% accurate on technical issues. You don't want instand static discharge. A wrist strap with no resistor could cause that. Therefore put in a current limiting resistor to make the charge dissipate slowly. Does anyone
Electronics Forum | Wed Jul 08 14:13:51 EDT 2009 | stepheniii
Actually that reminds me I remember one place I visited that wore two heel straps for saftey purposes. The reasoning was that if you touched a live wire with one hand and only had the heel strap on the other foot the current would go through your he
Electronics Forum | Thu Jul 02 05:49:37 EDT 2009 | rway
Nuez, I don't really see how it's a problem. If your not using a wrist strap, there's no grounding issue. It will work fine as is, equipment insulated or not. The "conductive" mats have many mega-ohms of resistance as it is. Simply "bypassing" t
