In a message dated 02/22/2000 11:50:09 AM US Eastern Standard Time,
[log in to unmask] writes:

> Is IPC has requirement for component cleanliness?  I have checked archives
>  of TechNet.  No IPC requirement in Sept. 1998.  Anything changed?  As Bev
>  Christian stated 2 years ago:
>   "No company can really afford to carry a complete set of its own standards
>  any more and with the contract manufacturing industry out there, it doesn't
>  even make sense to try and do it."
>   Help!  (with components comming from anywhere and everywhere, standards
are
>  needed)

Joyce,
Don't hold your breath.  With the move towards performance based
specifications, most IPC assembly level specifications are going the route of
having the assembler or OEM define for their hardware what cleanliness
measures are to be used and what cleanliness requirements are for their
products.  From a cleanliness standpoint, I don't foresee any more "one size
fits all" cleanliness specs.  Them days is gone.  I think about the best you
will see will be recommended protocols from the IPC on how YOU determine
cleanliness of components and how YOU determine how clean your components
need to be for your hardware.

Doug Pauls
Technical Director
Contamination Studies Labs

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