Electronics Forum | Fri Dec 02 01:49:48 EST 2016 | jeya7376
I want to do improvement in conversion time. We running small quantity board and frequently do conversion. we produce very simple board no BGA only resistor, capacitor, LED, IC and transistor. We are running same model top and bottom in 1 reflow oven
Electronics Forum | Tue Nov 17 01:05:26 EST 2009 | 89jeong
To monitor the reflow profile is very important. We are doing profile every week(Monday). Out customer asked us daily check at first. We checked daily but we changed the checking period from daily to weekly after discussing about it with our customer
Electronics Forum | Tue Jan 24 22:43:20 EST 2017 | david_chiu
Absolutely ok!! We already co-use the same profile setting for top and bottom side to avoid line efficiency loss for more than 10 years. But only one thing you should careful is the heavy mechanical parts on bottom side may drop during reflow proces
Electronics Forum | Sat Nov 14 08:13:54 EST 2009 | davef
It depends. Issues are: * Are your processes 'in control and capable?' * How often do you change product runs? * Do your jobs run across shifts?
Electronics Forum | Tue Apr 05 12:18:25 EDT 2011 | gaz
That's very helpful, and much appreciated. I know it's a long shot, but I don't suppose you know what paste they are using with these settings. I am testing with sn100c ws488. Thanks! kinos
Electronics Forum | Tue Jan 31 08:28:29 EST 2017 | emeto
That is why we don't care if it is Top or Bottom. We call them first (process) side and second (process) side. Often you will have tall and heavy parts on both sides, so you will have to glue them.
Electronics Forum | Tue Apr 05 03:16:45 EDT 2011 | grahamcooper22
one of my customers with a BTU VIP 70 has the following settings, 100 / 175 / 210 / 250 / 265 with conveyor speed of 18 ins per minute. They get a peak temp of 240~245C and time above liquidus of 220 C is @ 55 secs. Built in thermocouples should give
Electronics Forum | Tue Apr 05 16:29:18 EDT 2011 | gaz
We are not having any real issues. I am just first setting up a lead free profile, and was looking for a starting place. So far it's going well. Can you tell me more about why your paste would be better and I'll pass that on to the decision makers?
Electronics Forum | Fri Nov 13 18:29:50 EST 2009 | luisreyes
really need help!! Our company is experiencing a change on the Quality system. one of the things that we are discovering is the amazing variation during the reflow oven and wave solder processes. this week we found that the team had not been performi
Electronics Forum | Fri Apr 01 03:02:59 EDT 2011 | grahamcooper22
starting point with zone settings would be, 100 / 160 / 200 / 225 / 260 deg C...but you'll have to check the exact profile on the pcb with a reflow profiler....making sure you meet the paste spec and making sure you don't heat any devices up to quic
