Hi David! Not sure quite you mean when you say; "Pre-formed tab to add extra volume to the spheres." Can you elaborate further? You also say that you want to avoid adding solder paste, can I ask why? If the ball-pitch, ball count, and ball pattern is pretty standard, you can buy 10 Flextac stencils from Circuit Technonolgy Center for around $50. They work wonderfully too! Go to: http://www.circuittechctr.com/products/201-3120.shtml and check them out. I've got pictures up on my page of me using one to solder a Power PC BGA to a SMT-to-PTH adapter, which I'm sure if there wasn't something like Flextac stencils around, would have been a real bear to do. Give us a few more details... -Steve Gregory- > Hello Technetters, > > I have some BGA sockets which I am trying to solder to PCBs. > > The sockets have stand-offs which prevent the solder spheres from collapsing > and making a good mechanical/electrical connection. > > Ideally what I am looking for is a pre-formed tab to add extra volume to the > spheres. I do not have an in-house machine shop to make a stencil to apply > paste and quite frankly I would like to avoid that course if possible. > > Thank you in advance for your help, > > David Tremmel > Technical Manager > Belmont Component Services > --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 1.8e 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 or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/archives Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 -----------------------------------------------------