Hi Craig, How many solder bumps on how many PCBs? If it's just a few (more than 50 will drive you insane) try putting a tiny bit of paste flux down with a needle on the pad only. Then wipe off the needle leaving a trace of flux on it. Use the needle to pick up balls from a jar and place them one at a time on the pads. You will need a good microscope. Then reflow the PCB. If the flux goes from pad to pad then so will the balls. If it is a lot then send me a personal e-mail and I'll do my sales pitch. How large is the PCB? Is it already loaded/populated? Hope this helps -----Original Message----- From: Craig McGlinchy <[log in to unmask]> To: [log in to unmask] <[log in to unmask]> Date: Tuesday, September 01, 1998 2:43 PM Subject: [TN] Solder Bumping >Hi All, > >I am trying to find out if it is possible to get solder bumps (as on a bga) >place on a PCB, the pitch of the solder bumps would be 0.8mm, and the >diameter of the bump approx 0.5mm. > >Thanks > ################################################################ TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c ################################################################ To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: To subscribe: SUBSCRIBE TechNet <your full name> To unsubscribe: SIGNOFF TechNet ################################################################ Please visit IPC's web site (http://www.ipc.org) "On-Line Services" section for additional information. For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312 ################################################################