Hi Eric!

If this is a ECO to an existing board, then yes, there will be real cost 
impacts. The new BGA, new PCB, and a new stencil for sure.

As far as charging your customer for things like edits to pick and place 
programs, I suppose that's something each company will have to decide if that's a 
standard practice with them or not.

Personally, if I'm already building a board for a customer, and they re-spin 
the design to use one different part,  even if it's switching from say a QFP 
to a BGA, in the interest of customer relationships, or "partnerships" as we 
like to say, I'm not going to be so petty as to charge for a vision data change. 


Who knows? This part change may be what keeps this product ahead of similar 
product from other companies, and keeps this CM working for a while longer 
building this customers product.

While I'm not saying you should give everything away for free, there's 
charges to me that seem "nit-picky", and those that are justified. If I get hit with 
a ECO that has 20-part number changes, then yes, there will probably charges 
for that, because that's a whole different scope of ECO.

I'm not a GSM guy, but I've worked with FUJI, Zevatech (JUKI), Assembleon, 
Amistar, Dynapert (Yikes!), and also with a Universal OMNI-B, and 2-hours seems 
like a very long time...doesn't take that long on other machines.

-Steve Gregory-

P.S. Seeing how it's Friday, got a neat little hand/eye coordination test 
that's fun to take. Go to: 
http://starterupsteve.servepics.com/swf/hand-eye_sabotage.html 

You need to turn your sound up so you can tell if you score on some of the 
tests. You'll do pretty good if you play video games. If you don't, you'll do 
like me and stink...hehehe

Happy Halloween!


> Happy Halloween to all!!
> 
>  
> 
> It seems fair to charge a standard initial tooling price.  But if I 
> understand the original statement, this is a new part added to an existing board.  
> Steve, after you have charged the tooling cost, how do you handle changes to 
> the board?  Essentially, every part of the process has to be changed or 
> modified with the revision change.  Isn’t it fair in this case for the CM to charge 
> the customer for these modifications?
> 
>  
> 
> Eric
> 
> -----Message d'origine-----
> De : TechNet [mailto:[log in to unmask]] De la part de Steve Gregory
> Envoyé : 31 octobre, 2003 11:18
> À : [log in to unmask]
> Objet : Re: [TN] BGA lighting adjustment
> 
>  
> 
> Hi Greg!
> 
> They're charging YOU time to create a vision database to place a part on a 
> board they're building for you? WOW!
> 
> I gotta say, in the 17-yrs. that I've been in contract manufacturing, that's 
> the first time I've ever heard of that...
> 
> We do have a flat NRE charge for initial P & P programming and tooling, but 
> that includes everything, i.e.; Stencils, vision programs for placement, 
> color coded production aids, screen printer programs, reflow oven and wave solder 
> recipes, rework recipes if we need them, ect., ect...
> 
> But to have itemized charges for each and every individual facet of the 
> programming needed for manufacturing? Getting a little anal if you ask me...
> 
> -Steve Gregory-
> 
> 
> 
> 
> 
> technetters,
> 
> We recently introduced a 516 pin 1mm BGA on one of our latest boards.  Our
> EMS provider is trying to charge us 2 hours of line time (for a significant
> amount of money) for time spent adjusting the lighting on their GSM cameras.
> They claim that the non-uniform ball grid layout was causing recognition
> errors at placement.  It has been a while since I've worked directly with
> P&P equipment, but 2 hours of time seems a ridiculous amount of time to
> adjust the cameras.  Any thoughts?
> 
> -----------------------------------------------------------
> Gregory Parke
> Senior Manufacturing Engineer
> Coriolis Networks
> 330 Codman Hill Road
> Boxborough, MA 01719
> Voice:  978-264-1904 x651
> Fax:    978-264-1909
> [log in to unmask]
> 
> 


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