Hi Prahant,

In our applications, high voltage, we need certain attributes that are not covered by IPC standards such as ball soldering of component leads on a high voltage multiplier to create a nice "corona ball" to prevent sharp points.  We use Litz wire that has unique properties that go against IPC or industry standards for wire termination.

So how do we handle this?  We have a document that simply states what IPC documents we reference, the Class level and only document those items which are necessary exceptions to the IPC standards.  Where ever possible we rely on the IPC standards.

I hope this helps guide you through what is necessary to document and what can be referenced.

Best regards,


Phil Nutting
Design for Manufacturing Engineer
Kaiser Systems, Inc.
126 Sohier Road
Beverly, MA 01915
Phone: 978-922-9300 x1310
Fax: 978-922-8374
e-mail: [log in to unmask]
www.kaisersystems.com
www.linkedin.com/in/philnutting




-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of prashant chopra
Sent: Thursday, September 29, 2011 8:34 AM
To: [log in to unmask]
Subject: [TN] DFM Guidelines v/s IPC Guidelines

Hi,

Hello everyone. I have a very basic question here.

Why do we require our own specific DFM guidlines (every OEM / CM will have their own specific DFM Guideline) when we have the IPC guidelines defined and available?

I am looking for the pointers and specific examples which can highlight the need to have and develop specific DFM guidelines for a company.

Thanks in advance.

Regards
Prashant

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