In a message dated 5/8/2001 3:20:54 PM US Eastern Standard Time, [log in to unmask] writes: << Does anyone have experience on implementing SPC on P&P process? What tools and parameters would you use to control and monitor? >> For one you should be looking at your actual placement vs the CAD centroid data. This will take a highly accurate AOI system or CMM to get meaningful info. I recommend the AOI solution with the ability to make these accurate measurements for exact location of each part. That way you don't have to remove the board from the line, and could plot a point on your chart as often as you want. Jon Moore --------------------------------------------------------------------------------- Technet Mail List provided as a free service by IPC using LISTSERV 1.8d 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 delivery of Technet send the following message: SET Technet NOMAIL Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail Archives Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 ---------------------------------------------------------------------------------