> Jean-François:
> Call or E-mail the company below. They have an inexpensive way of
finding flux on boards by dispensing a few drops of their formula on an area
and rinsing it. Where ever there is flux, it will turn blue..
> Regards,
> Ramon
>
> Umut Tosun [[log in to unmask]]
> ZESTRON Corporation
> > 21641 Beaumeade Circle
> > Suite 315
> > Ashburn, VA 20147
> > Phone :(703) 589-1198 ext-102
> > Fax:(703) 821-9248
> > Cell:(703) 608-9029
> > Web: www.zestron.com
>
>
>
> -----Original Message-----
> From: Bissonnette, Jean-Francois [mailto:[log in to unmask]]
> Sent: Wednesday, March 03, 2004 2:19 PM
> To: [log in to unmask]
> Subject: [TN] Flux Identification and Soldering over gold plated pads???
>
>
> Got two questions here
>
> First I would like to know if there is a way to identify flux residues on
a
> soldered assembly. For instance, I have a series of
> board that have a glass like residues between the lead (SMT) and quite a
lot
> of it. It looks clear, little bit brownish and it
> breaks like glass if I apply pressure with a dentist pick. Also where
hand
> soldering was done, the brown color is much
> more obvious.
>
> Second. Any of you ever seen a board with gold plated lands instead of
tin
> plated? Well I would not be able to say it
> it IS gold plated but it sure looks like it and not copper.
>
> Any help would be appreciated.
>
> Jean-François Bissonnette
> Vérificateur, Contrôle de la Qualité
> Électronique
> Produits et Procédés
> Vapor Rail Inc.
> 10655 Henri-Bourassa O.
> St-Laurent, Qc
> H4S 1A1
>
> (514) 335-4200 x2021
> (514) 335-4231 fax
>
>
>
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