Electronics Forum | Mon Dec 30 12:48:18 EST 2019 | rgduval
Keep in mind that the oven temperature does not, necessarily, equate to the board temperature. The thermal characteristics of the parts and copper will cause the board temperature to be different, sometimes significantly, than the oven temperature.
Electronics Forum | Thu May 22 12:32:35 EDT 2008 | tonyamenson
So here is my problem with the info you gave. If my preheat topside max is 150 - 170 C but my flux calls out a topside temp of 93 - 104 C..... ....Im pretty much up a creek becuase of a poor flux choice? FYI. we are using the Indium 3590-TX for bo
Electronics Forum | Wed Feb 04 09:58:50 EST 2009 | dyoungquist
As was stated before, you need to have oven temperatures (profile) set such that you get good solder joints with the paste you are using. And definately run a profiler through yor oven to verify it is working properly. As for components, most data
Electronics Forum | Thu Mar 13 16:32:25 EDT 2008 | dyoungquist
MyData PNP machines are good for high mix/low volume because change over time between jobs is lower than with many other PNP machines. They also handle parts on cut tape strips easily and you will have these with low volume runs. As for lead free o
Electronics Forum | Fri Apr 29 07:29:58 EDT 2005 | siverts
Steve, Thanks for Your replay and I agree with You. But sometimes I find it hard to always have the optimum in every aspect of our high mix/low volume electronics assembly production. We also do a lot of prototype production. In this case we had to g
Electronics Forum | Tue Jun 20 10:15:44 EDT 2006 | samir
Again, the verdict is mixed here as well, but from the seminars, white papers, etc. the consensus seems to be that Pb BGA's are not compatible in a Pb-Free RoHS Process...but... Pb-Free SAC BGA's are compatible in a Sn-Pb process as long as your pro
Electronics Forum | Tue Jun 20 19:15:19 EDT 2006 | grantp
Hi, What are your thoughts about the article saying that the lead will leach out of the solder joint to the last place to cool, creating a weak point? I have two worries about the report. First, is that we have always used tin lead solder, and le
Electronics Forum | Fri Jan 21 00:51:56 EST 2005 | WDLau
Hi All, could anyone advise me what we need to pay attention to if we will be usingthe Sn Pin plating as lead free requirement in SMT reflow process, is it a need to increase the Temp Profile by 10~15 Degree c as Sn with Melting ppoint 232C, Please
Electronics Forum | Sun Apr 23 09:07:42 EDT 2006 | kanna
i have one problem here with BTU TRS-14. we encounter Over temperature Alarm trigger when run lead free product. our profiling peak temp is 230 degree's and the temperature set point at zone 4 top/bottom is 260 degree's. can any help on this issue
Electronics Forum | Wed Apr 26 04:36:36 EDT 2006 | rlackey
I don't believe that the TRS14's are suitible for lead free - the max temp rating from the data sheet is 275oC. When you get near temperatures like 350 C I'm under the impression that the oven itself would start suffering embrittlement damage. Howev
