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Date: | Mon, 7 Apr 2008 21:04:10 -0500 |
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John,
How do you define layer to layer registration? While this might appear to be a trivial question, if minimum annular ring and holding master artwork line widths within tolerance aren't sufficient to define your needs, what additional requirements have to be met?
Don Vischulis
-----Original Message-----
>From: "Murphy, John" <[log in to unmask]>
>Sent: Apr 7, 2008 12:13 PM
>To: [log in to unmask]
>Subject: [TN] layer to layer registration?
>
>Greetings,
>
> Is it a good idea to specify layer to layer
>registration for Class II
>
>multi-layer PCB's? My searching thus far indicates it is not directly
>contained
>
>in any IPC specification (other than annular ring requirements) but
>relegated to
>
>the Master Drawing.
>
>
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Technet Mail List provided as a service by IPC using LISTSERV 15.0
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet
To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL)
To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest
Search the archives of previous posts at: http://listserv.ipc.org/archives
Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815
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