Joe,

have you considered applying solder mask or marking ink on the UL logo to 
cover it? Of course this has to be discussed first with your customer.

Sherif Refaat,

----- Original Message ----- 
From: "Joe Hughes" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Friday, June 22, 2007 9:37 AM
Subject: [TN] Vendor Markings


> I'm interested in opinions regarding Vendor Markings.  If a fabrication
> drawing is silent regarding vendor markings, is it acceptable to apply the
> fabricators UL logo?  We have a customer that is angry we applied our 
> logo.
> However, we feel we need to apply our logo for our own traceability and
> ability to do failure analysis should the boards ever be in question.
>
> We have had several occasions where our customers return boards we didn't
> build.  It obviously is easy when we can show them the logo is not ours, 
> but
> it gets difficult when there are no logos on the board.
>
> They'd like us to rebuild 5 lots of boards due to not asking them if it 
> was
> acceptable to apply our vendor id.
>
> Should the fabricator be responsible for requesting approval for vendor
> markings on every job, or should the board buyer be responsible for 
> stating
> no vendor markings allowed?
>
> Your input is appreciated.
>
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