Raul, Not a practise I would recommend. We have done it once on request from a customer. If you decide to do it beware of the following: Different sockets will transfer heat differently. If heat transfer is too efficient , and the part you are plugging has solder finished leads then you may reflow the solder. Also some sockets may allow solder wicking up the socket pins to the leads of the part (seems to be less of a problem on machined pins). If you really want to do this then I would suggest a trial run to see if problems arise before proceeding full steam. Regards Evan Evan Jones Manufacturing/Test Engineer Bluegum Technology Pty Ltd PO Box 609, Wangaratta, Australia, 3676 Ph: 61 3 5720 2539 Fax: 61 3 5720 2412 Internet: [log in to unmask] Raul Cantero <[log in to unmask]> on 08/01/99 08:46:27 Please respond to "TechNet E-Mail Forum." <[log in to unmask]>; Please respond to Raul Cantero <[log in to unmask]> To: [log in to unmask] cc: (bcc: Evan Jones/BGT) Subject: [TN] Programmed parts in sockets Does anyone have any experience inserting programmed parts in sockets PRIOR to wave soldering the socket into the PWA???? Ra