Subject: | |
From: | |
Reply To: | TechNet E-Mail Forum. |
Date: | Tue, 15 Sep 1998 09:55:00 +1000 |
Content-Type: | text/plain |
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HI MATT
READ INSERTS BELOW PLEASE
> ----------
> From: Matthew Lamkin[SMTP:[log in to unmask]]
> Sent: Tuesday, 15 September 1998 7:39
> To: [log in to unmask]
> Subject: [TN] Gold plated connector & peelable resist?
>
> Hi all...
> I am in the process of designing a board that will have 10 gold
> fingers
> on an edge connector.
> This is the first time this has been done in my company, so no-one
> else
> has any experience of it.
> What I would like to know is;
>
> 1) Will these boards need some protective covering on the gold plating
> for storage ?
NO ; AS LONG AS THE BOARD IS IN STANDARD (ESD) BAG .
> 2) Can peelable resist cover gold fingers?
YES ; I FOUND IT MORE RELIABLE COVER THAN TAPE OR CLIP ON COVER .
IN YOUR UK LOCATION PROBABLY MULTICORE'S LATEX WILL DO FINE .
IF YOU HAVE FINGERS ON EDGE & IN QTY > FILL A GROOVE AND DIP (FAST) .
> 3) Can these go through the wave solder bath if covered in peelable
> resist?
YOU COULD NOT DO MUCH BETTER ; CAN INDEED .
> 4) Is there a maximum temperature that the gold fingers can be
> subjected
> to in the wave solder bath?
UNLESS YOU BOIL THE TIN ; YOU HAVE NO CHANCE OF HARMING THE LATEX DIPPED
GOLD .
IN REAL TERMS YOU SHOULD NOT BE OVER 260'C
>
> Any information about this would be most appreciated.
>
CHECK THE FABRICATOR (BARE BOARD) TO WHAT STANDARD THEY PLATE .
THAT SHOULD CORRELATE TO WHAT STANDARD (OR PURPOSE) YOU ASSEMBLE .
SEE YOU
PAUL KLASEK
HTTP://WWW.RESMED.COM
>
> Many Thanks, Matt Lamkin
> Printed Circuit board Draughtsman
> Protec Fire Detection PLC.
> [log in to unmask] <mailto:[log in to unmask]>
> (for technet)
> [log in to unmask]
> <mailto:[log in to unmask]> (for work)
>
>
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