Electronics Forum | Fri May 29 06:56:11 EDT 2009 | davef
esd "conformal coating"
Electronics Forum | Mon Jun 01 11:31:22 EDT 2009 | operator
shorting strip?
Electronics Forum | Mon Jun 01 08:12:06 EDT 2009 | davef
If the operator has zero charge and the board has a 10kv charge, when the operator pulls the shorting strip from the edge connector after the coating has cured, there is a large potential for ESD induced damage.
Electronics Forum | Fri May 29 00:34:17 EDT 2009 | operator
Thank you Dave. I have searched the internet and cannot find any literature to the fact. Do you have knowledge of of any articles, whitepapers, etc... Thanks again, B
Electronics Forum | Fri May 29 23:19:46 EDT 2009 | isd_jwendell
I too have heard of the ESD problem when using aerosol spray conformal coating, but I haven't found any documentation. I have been spraying SR conformal coating for ~ 10,000 boards with no failures due to the coating. The person spraying is grounded
Electronics Forum | Thu May 28 16:10:07 EDT 2009 | operator
How does one keep a pcb safe from ESD when applying an aerosol conformal coating on a flat surface? Even if you had an ESD mat to place the pcb on it would quickly be coated. The only thing I can think of is an ionizer. Does not the aerosol create a
Electronics Forum | Thu May 28 23:03:15 EDT 2009 | davef
10kv on the surface of the board. To avoid this charge: * Use an electric paint sprayer to apply liquid -base conformal coating * Purchase a metal nozzle for an electric spray gun so that it can be connected to ground * Use a nuclear ionizer where th
Electronics Forum | Mon Jun 01 11:38:28 EDT 2009 | operator
So would the proper technique be as follows: 1. Grounded operator picks up PCB from ESD rack and attaches a 1meg(wrist strap cord)shunt to ground to a grounding surface on the pcb. 2. operator sprays conformal coating onto pcb using a spr
Electronics Forum | Sat Jul 22 03:27:36 EDT 2023 | shrikant_borkar
hi here are consolidated inputs to you you must validate before establishing your process. ESD-safe Material: Ensure that the masking tape is made of ESD-safe materials that have low triboelectric charge generation. Common materials used in ESD-sa
Electronics Forum | Fri Sep 18 00:39:23 EDT 2009 | rohitfast
Hi Davef & Mikes, Thanks for the response. I am agree with both of your point. If the component bosy will be fall in Coductive or dissipative range, there are chances of shorting. Other thing in ESDS:2020 8.3 para is saying to keep away all the insul
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