i believe ipc got std for esd... you better treat as esd sensitive -  

embedded components are gaining popularity now.  if you set up  

internal std.  you should do it now as esd sensitive PCB  

regardless...IMHO.

On Aug 7, 2017, at 6:43 AM, GRIVON Arnaud wrote:



> Hello TechNet,

>

> Here is a query I got that falls more on PCB design side and  

> slightly outside my boundaries...

> Trying the TechNet shortcut as this is probably the quietest week  

> of the year with most people being in vacation...

>

> The question is on the rules and requirements regarding the ESD  

> susceptibility symbol at PCB level.

> The yellow/black symbol is well-known for electronic components,  

> but how should it be implemented at PCB level ?

> All PCB assemblies include ESD sensitive components, so shall it be  

> done systematically or can it be missed ?

> If needed, how should it be done : by affixing labels or are etched  

> symbols of PCB also an option ? Does it have to be close to the  

> most ESD sensitive part locations or is it intended to be a global  

> marking for the whole PCBA ?

>

> As far as I can see, the ANSI/ESD S8.1 standard mentions marking at  

> PCB level (Quote : "The ESD susceptibility symbol should be used on  

> assemblies and devices that have a sensitivity to ESD events") but  

> is clearly more focused on marking at the component packaging level  

> (Quote : "The symbol may be incorporated on a sticker used to close  

> or seal ESD protective packaging to indicate that materials inside  

> the package are ESD susceptible").

>

> Thanks in advance for your any clue.

>

> Best regards,

>

> Arnaud Grivon