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October 2006

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Subject:
From:
Bernard Kessler <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Bernard Kessler <[log in to unmask]>
Date:
Thu, 19 Oct 2006 16:38:49 -0700
Content-Type:
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text/plain (139 lines)
Again off subject----
For new sources consider photos prior to shipments and escrow
accounts------ allowing time for visual inspection.  No guaranteed
safeguard but
both tend to filter out the blatant con artist.
Bernie
  .





Ben Kim ----
You may be slightly --- slightly --- off-subject but remarkably
on-target.  It's a daily battle to guard against the rogues
in this business and keep clients on schedule.  This general subject
would have been a natural for the old
Round Table meetings ---- where anything and everything of legitimate
concern to any one segment of the
PCB industry was fair game for discussion.
Bernie Kessler


At 04:02 PM 10/19/2006, Ben Kim wrote:
>Rich,
>
>Counterfeit parts are definitely a growing problem.  But if you only rely
>on factory delivery, you are still left with a line down problem.
>
>There are many scoundrels selling counterfeit parts in the gray market and
>it hurts all of us as a whole, but there are also many more reliable
>distributors that do deliver as promised on a daily basis.  I know many
>independent distributors who run very clean operations by supplying stock
>from reliable OEMs/CEMs and a set of established trading partners.
>
>But when a part can only be sourced from a questionable supplier with a
>reputation for selling counterfeit/substandard parts, a good distributor
>should inform your buyer of the situation and recommend against the
>purchase.  If you are so desperate that you decide to proceed anyway, there
>are still many steps that can be taken to prevent counterfeit parts from
>getting anywhere near your boards, such as rigorous vendor screening,
>visual inspection, and various levels of electrical or functional component
>testing.
>
>But you need to work with a distributor that is open, direct, and honest
>with you.  If they're only looking to make a quick buck and make promises
>they cannot deliver, then I guess you might end up with an expensive set of
>scrap boards.
>
>In my opinion, the key to sourcing components is in the processes you
>setup, same as in production.  If you have bad processes in place or do not
>practice and improve upon them diligently, your problems will build up and
>bite your behind.
>
>I know this wasn't the main point of your discussion so my apologies if I'm
>off topic, but I just wanted to share my experience from a supplier's
>perspective in case it may be helpful down the road.
>
>Best regards,
>
>Ben Kim
>[log in to unmask]
>
>
>======================
>On Wed, 18 Oct 2006 10:17:55 -0400, Rich Wolbert <[log in to unmask]> wrote:
>
> >Wayne,
> >
> >...Sorry to hear you had the same experience with the counterfeit parts. It
> >seems like you have to buy direct from the factory to get the correct
>parts.
> >
> >Rich
> >----- Original Message -----
> >From: "Wayne Thayer" <[log in to unmask]>
> >To: <[log in to unmask]>
> >Sent: Wednesday, October 18, 2006 9:59 AM
> >Subject: Re: [TN] Oxidized PCBs
> >>
> >> ...We've been nailed by counterfeit parts too, so I feel your pain!
> >>
> >> Wayne Thayer
> >>
> >> -----Original Message-----
> >> From: TechNet [mailto:[log in to unmask]] On Behalf Of Rich Wolbert
> >> Sent: Wednesday, October 18, 2006 8:32 AM
> >> To: [log in to unmask]
> >> Subject: [TN] Oxidized PCBs
> >>
> >> OK, I know you guys are probably going to shake your head on this one,
> >> but I have to ask. We have a double sided fine pitch SMT assembly and
> >> we
> >> decided to go to white tin for the pad material. Here's where the
> >> problem comes in, we ran one side and when we started process the
> >> other
> >> side we found counterfeit chips. We stopped production for two weeks
> >> until the correct parts came in. When we tried to run the boards
> >> again,
> >> the PCB's oxidized so badly over the two weeks that we can not get the
> >> solder to wet. Any suggestions, other than scrapping the 170
> >> assemblies
> >> at $600 a piece?
> >>
>
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Bernard Kessler & Associates, Ltd
562-495-3221 Fax: 562-495-3228
"Service is our profession"
http://home.earthlink.net/~bkesslerbka





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