Electronics Forum | Wed Feb 24 13:05:04 EST 1999 | Mike Larsen
| I am profiling a BGA for the first time and I am seeing temperature flucuations on the ramp and cool down from the thermocouple I have placed through the pcb and under the component. I am using a 5 zone convection oven.Any suggestions on the plobl
Electronics Forum | Tue Feb 02 09:51:38 EST 1999 | Justin Medernach
| Hello Everybody: | | I am in urgent need of some information regarding the reflow profile for a flip chip wafer. Would the reflow conditions along with the flux used affect the appearence of the solder joints. | | We are witnessing dull solder j
Electronics Forum | Fri Nov 27 04:56:36 EST 1998 | Terry Keen
Hi I have been conducting my first reflow profiles. Most of the texts that I have read suggest soldering the thermocouples to a populated pcb. I am finding this very difficult. I have been using a high melting point (Sn5 / Pb95) solder and the diff
Electronics Forum | Mon Jul 27 13:59:11 EDT 1998 | Robert Steltman
We are about to run our first BGA devices and would appreciate some confirmation on a few points. First some details: PCB & Device: ============= 1) 16 layer (4 power, 4 gnd, 8 signal) 2) gold on nickel finish 3) ceramic BGA with eutectic balls Refl
Electronics Forum | Thu Mar 05 16:25:27 EST 1998 | Brian Stumm @ ETS
| I am looking for information on reflow temps for a flex board. There is only one 6 pin IC but the board has a 3M double sided tape. | Is it possible to reflow without damaging the tape. Any suggestions? Do you have a profiler for your reflow oven?
Electronics Forum | Thu Mar 05 16:29:22 EST 1998 | Brian Stumm @ ETS
| Can anyone advise a good starting point for a temp profile for | on 0.05" and 1206 component boards? These boards are simple | by todays standards and do not contain any fine pitch or | other special components. | Thanks in advance... | MM Be hap
Electronics Forum | Fri Oct 05 08:35:52 EDT 2001 | Hussman
Hey Steven, Achieving the proper profile like you described does require you to engineer proper conveyor speeds and zone temps. Most conveyorized ovens have the inside of the ovens divided into zones. Each zone has a top and bottom heater that can
Electronics Forum | Wed Dec 19 17:15:10 EST 2001 | davef
So, what is a �Contaval Pallet�? And who, my I ask, came-up with the cockamamie idea of retrofiting of the edge hold conveyor? Last time I checked, everything was fine, all profiles were working, etc., etc. Just think, if you move the fixed rail i
Electronics Forum | Thu May 23 13:00:51 EDT 2002 | cyber_wolf
One more thing I want to add. Don't turn this into some big deal. Its not atom splitting, or black majic.Bottom line is that you are going to be doing some experiments to prove it to yourself and whomever else requires the data. Profiling is time con
Electronics Forum | Mon May 27 18:51:17 EDT 2002 | harotec
Hi Yngwie Have you got a reflow oven yet. If not, forget about complicated profiling with test runs or reflow trackers. We've got a nice oven with integrated temperature-feedback system. You build any profile you want and the oven will adjust its hea
