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Subject:	Re: singulation or depanelization of circuit boards
From:	Robert Kondner <[log in to unmask]>
Reply To:	[log in to unmask]
Date:	Fri, 20 Apr 2012 10:41:59 -0400
Content-Type:	text/plain
Parts/Attachments:	text/plain (37 lines)

Pete,

 Question:

 You mention that you have your CMs purchase against your AVL, ok that makes sense. But, how do you get your AVL data into the CM purchasing system?  

That sounds like a messy data exchange. It would seem to require that CMs make sure each of your part number to be unique in their system.  I know that many CMs like to code a BOM against their internal part numbers but that would not honor your AVL list requirement.

Did I get that right?

Thanks,
Bob K.

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Pete
Sent: Friday, April 20, 2012 10:13 AM
To: [log in to unmask]
Subject: Re: [TN] singulation or depanelization of circuit boards

We have recently switched from captive to CM for PCBs.   Most of our procedures were developed based on captive manufacturing, so there is a little adjusting to be done.

All of our SMT boards are documented as panels, to make sure that no matter who purchasing chose from our AVL, the boards came in ready to drop in the line.  Panelization parameteres were developed with manufacturing engineering.

I don't doubt that using those panels has caused our CMs to adjust.  Being minor adjustments, they aren't going to bother the customer.   I have had only one request to change a panel.  

We do require that all of our CMs, prototype and production, purchase from vendors on our AVL.  There are huge time and money savings in a known good vendor.  We have added vendors (after our approval process) on suggestion from our CMs.  For prototyping, we will often buy from our vendor and ship to the CM, to expedite the process.  Having a direct relationship with the fab vendor, not working third party through the CM, makes communication MUCH easier, and has saved us time and money by being able to implement advice form the fab engineers.  

It's the least expensive way to ensure quality PCB fabs, which we all know is a cost saving in itself.

Pete


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