Electronics Forum | Tue May 18 14:47:02 EDT 1999 | Dave F
| Looking at the full convection reflow oven market, I see two segments, high mass heater ovens (i.e. Electrovert Omniflow,...), and low mass heater ovens (i.e. Heller,...) | Did some of you guys did some testing on both types and what were your find
Electronics Forum | Sat Nov 23 08:05:20 EST 2013 | emeto
Hi, I would check the thing in the following order. 1. Check paste - SPI is the best way. If you don't get the right deposit there is no wonder you have issues. 2. Check reflow profile - tweak it to the point of perfection for the board you have. 3
Electronics Forum | Fri Jul 07 16:52:20 EDT 2017 | tombstonesmt
We had very little success reworking these type of boards. We used a BGA repair station and still was a major hassle. Are these shifted LED's or defective?
Electronics Forum | Thu Aug 31 10:38:24 EDT 2017 | jchris
Thanks for all of your suggestions. I ended up borrowing a Pace Worldwide PH100 Preheater, which worked like a charm. I'm in the process of purchasing one for our own shop. I had to place the aluminum pcb directly onto the PH100's ceramic heating pla
Electronics Forum | Thu May 23 12:11:40 EDT 2002 | pjc
One thing I have done in your situation is ask the customer if they have any older design boards that are similar in thermal mass or if they have any from proto work, etc.... Otherwise find/make a board of similar thermal mass as best you can.
Electronics Forum | Fri Jul 07 09:22:17 EDT 2017 | westshoredesign
Are you reflowing them and they are coming out of the oven bad? If so, what kind of oven are you using? What kind of LEDs? What kind of solder? Mass of substrate? Have you ran a profiler through your oven and compared the plot to the solder's spec
Electronics Forum | Thu May 23 12:20:08 EDT 2002 | cyber_wolf
Well it depends on what kind of oven you have. If you have a short oven, you are going to have a difficult time. You will probably end up having several different profiles if that is the case. We have 3 BTU TRS 212 furnaces. They are fairly long 8 zo
Electronics Forum | Thu May 23 11:23:47 EDT 2002 | yngwie
Hi guys... Has anybody hv an experience with using a common or standard profile to reflow high mix brd ( say, low, medium and high )?. The reason for asking is that, we are running high mix low volume, and materials that were consigned is exactly as
Electronics Forum | Thu May 23 12:27:53 EDT 2002 | johnw
yngwie, are you getting a wave from the customer to say it's not your fault you fried the parts? Profiling's one of those things that is a pain to dobut it's one of the most important factors in the assembly processes. I've read and seen instances w
Electronics Forum | Fri Nov 09 08:45:31 EST 2007 | philkaz
I am in the R&D department at KIC. We have been making thermal profiling equipment for 20+ years. A standard circuit board is made from FR4 fiberglass. A typical solder reflow profile, whether leaded or unleaded, takes the board above the "glass t
