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June 2005

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Subject:	Re: Grain Structure
From:	"Michael E. Hill" <[log in to unmask]>
Reply To:	(Combined Forum of D-33a and 7-31a Subcommittees)
Date:	Tue, 21 Jun 2005 15:27:17 -0400
Content-Type:	text/plain
Parts/Attachments:	text/plain (36 lines)

remember this monthly full carbon treatment was before the acid copper of
today.

Mike

-----Original Message-----
From: IPC-600-6012 [mailto:[log in to unmask]]On Behalf Of Henesian,
Aram
Sent: Monday, June 20, 2005 1:16 PM
To: [log in to unmask]
Subject: Re: [IPC-600-6012] Grain Structure

Pete,
Dr. Engelmaier is right on target.  In the old Lockheed Missiles & Space
Co., we started with plated-through hole PWBs in 1964 and soon carbon
treatment became almost a monthly ritual.

Aram Henesian

-----Original Message-----
From: IPC-600-6012 [mailto:[log in to unmask]] On Behalf Of Werner
Engelmaier
Sent: Monday, June 20, 2005 9:18 AM
To: [log in to unmask]
Subject: Re: [IPC-600-6012] Grain Structure

Hi Pete,
I would drop any PCB fab house that does not carbon treat like a hot
potato.

Werner

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