>>> Rich Lasko <[log in to unmask]> 09/18/01 12:56PM >>> Good afternoon everyone, We have been doing some smaller qty prototype or very low volume production runs (Qty 5-10pcs) on our SMT equipment. We have been encountering some low yields at the SMT inspection for this type of production/prototype runs (They are nearly fixing each board for some reason or another). The feedback that I am getting from that department is that they can not accurately "tweak" the process with this low number of qtys (by the time they get close to having the machine programs set, they have completed all the boards in that order). So the next time we run the job, we continue to "tweak" the process in order to improve the yields. What this has caused us is some continuous rework at the end of the SMT line repairing the slid, shifted, or tombstoned components or incomplete solder reflow. Have any of you encountered a similar type experience and if so how was it handled in order to improve the yields? Thanks in advance for your help on this matter. Rich Lasko Badger Electronics --------------------------------------------------------------------------------- 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 ---------------------------------------------------------------------------------