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 Layer to Layer Registration 

Last post Thu, Oct 4 2012 7:10 AM by Ron Scott. 2 replies.
Started by Ron Scott 03 Oct 2012 12:01 PM. Topic has 2 replies and 1379 views
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  • Wed, Oct 3 2012 12:01 PM

    • Ron Scott
    • Top 500 Contributor
    • Joined on Tue, Sep 4 2012
    • Posts 17
    • Points 220
    Layer to Layer Registration Reply

    I need to clarify my fab notes and I need to know specifically which IPC document talks about layer to layer registration. I've been through the 6011 & 6012

    Thanks. 

    • Post Points: 20
  • Wed, Oct 3 2012 12:26 PM

    • budnoel
    • Top 50 Contributor
    • Joined on Tue, Aug 12 2008
    • Rochester, NY
    • Posts 129
    • Points 2,100
    Re: Layer to Layer Registration Reply

    I don't know if this is what you're looking for but IPC-2222 Section 9.1.5 states the following: The presentation in Table 9-3 is for the tolerance to be applied to the nominal dimension chosen for the location of the lands connector contacts and conductors in relation to the datums.  This tolerance includes tolerances for master pattern accuracy, material movement, layer registration and fixturing. I've attached a jpeg of Table 9-3 to this post.

     


    • Post Points: 20
  • Thu, Oct 4 2012 7:10 AM

    • Ron Scott
    • Top 500 Contributor
    • Joined on Tue, Sep 4 2012
    • Posts 17
    • Points 220
    Re: Layer to Layer Registration Reply
    Thanks but that was not what I was looking. I did finally find the source I needed which is: IPC-6012 Rev C (Book) Paragraph: 3.4.2 Table: 3.8 Had our documentation team order book right away. Ron Scott
    • Post Points: 5
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Started by Ron Scott at 03 Oct 2012 12:01 PM. Topic has 2 replies.