HDD and DIMM testing fixtures compliance verification and product qualification

Hello experts,

I would like to ask for your advice regarding our testing fixtures for DIMMs and HDDs in the RMA lab.
The fixtures are located in an EPA, and we are not sure how to perform compliance verification and product qualification measurements to ensure conformity with ANSI/ESD S20.20.

Could you please provide guidance on this?

Thank you very much for your support.

Best regards,
Lucie

Lucie,

ANSI/ESD S20.20 product qualification and compliance verification is for ESD control items. The closest ESD control item that would apply to your fixture is a worksurface.

Product qualification follows ANSI/ESD STM4.1 for worksurfaces. This STM shows how to do product qualification for mats, racks and mobile equipment so you may need to get creative on how you will make the measurements on your fixtures. You want to make sure that points on your fixture that may come in contact with your ESDS items are less than 10^9 ohms to points you intend to use for grounding the fixture. You may want to test many different areas to have the confidence that your fixture is providing the ESD protection you need.

As for compliance verification, you would only need to test one point on the fixture to ground per ESD TR53

The fixture would also need to meet the sections on insulators and isolated conductors from ANSI/ESD S20.20.