>>> <[log in to unmask]> 09/17/01 08:02PM >>>

Hi, Chris,

I haven't heard of such a spec, though I have come across either a general
rule of thumb or customer requirements. The general rule of thumb we adopt
is 1 wire per square inch, averaged over the whole board area, but I have
also had customers that limit the number of mod wires to 6 on a
eurocard-sized board. Repair wires were included in this figure, but could
be increased in number, if approved by a Material Review Board.

Hope this is some help.

Peter Duncan



                                                                                           
                    Jack Crawford                                                          
                    <JackCrawford        To:     [log in to unmask]                           
                    @IPC.ORG>            cc:     (bcc: DUNCAN Peter/Asst Prin Engr/ST      
                    Sent by:             Aero/ST Group)                                    
                    TechNet              Subject:     Re: [TN] IPC Specification on Jumper 
                    <[log in to unmask]        Wires                                             
                    ORG>                                                                   
                                                                                           
                                                                                           
                    09/18/01                                                               
                    03:20 AM                                                               
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>>> Chris Lampron [log in to unmask]> 09/17/01 02:14PM >>

Hello,

Can anyone tell me if there is any specification pertaining to the maximum
number of wires that can be added for rework on a PCB? Any information
would be greatly appreciated.

Thanks

Christopher Lampron



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