A single BOM is released for Rev control. 

 The assembly and inspection visual aides for pre-wave, post wave and mechanical assembly have the part numbers for the parts to be installed on the applicable page: work cell or station (progressive assembly line), therefore no BOM is required but we provide one in each area doc package:. 

 - Master DOC file, SMT doc package, Pre-wave/Post Wave Hand assembly, Mechanical assembly and Final Inspection. 

John Goulet 

MFG/Process Engineer   
----- Original Message ----- 
From: "Rick Smith" <[log in to unmask]> 
To: [log in to unmask] 
Sent: Tuesday, November 30, 2010 10:30:26 AM 
Subject: [TN] Separate BOM's for Same Assembly 

Hi Folks, 

Engineering currently produces two separate BOM's for a single board assembly, 1 for SMD's and the other for PTH parts which are subsequently entered into the ERP system by Doc Control. Without going into a lot of detail I understand the reasons for the separate BOM's are related to production logistics, routings and cost. 

I am told this is typical in the industry for OEM's and would like to either corroborate or debunk this with your responses. I am trying to determine if the 2 BOM system is necessitated by ERP limitations or the result of a misguided approach to process development. 

Does anyone use the two BOM approach for a single board assembly? 

Thanks! 

Regards, 
Rick 


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