Electronics Forum | Mon Jan 26 11:58:06 EST 2009 | ghcarnu
Hi there, where can I find some hints about placing the temperature sensors on the pcb when determining the reflow profile? I'm interested especially in the case of a pcb having BGA's. Thanks for your answers ! gheorghe
Electronics Forum | Wed Jan 28 08:56:40 EST 2009 | blnorman
Don't know the specifics from the IPC spec. However our standard internal spec dictates - highest thermal mass, lowest thermal, most critical component, and center of PCB on the laminate surface. Our profilers have 6 inputs, so the other 2 are dete
Electronics Forum | Wed Jan 28 11:18:05 EST 2009 | ghcarnu
thanks for all your answers.
Electronics Forum | Mon Jan 26 15:09:59 EST 2009 | leemeyer
IPC 7530 - Guidelines for Temperature Profiling for Mass Soldering Processes (Reflow & Wave)
Electronics Forum | Fri Jan 30 04:36:11 EST 2009 | sachu_70
Hope your problem is resolved. Else I could provide some details if wanted. Pl. confirm.
Electronics Forum | Mon Jan 26 22:32:05 EST 2009 | davef
Check Daan Terstegge's excellent jump site for articles on profiling http://www.smtinfo.net/Db/_Thermal%20Profiling.html
Electronics Forum | Mon Jan 26 13:30:36 EST 2009 | evtimov
Hello, usually you will place your themocouples on the most critical parts on your board. I would say, very big parts, very sensetive to the temperature parts, heavy parts, parts with big heat-sink.... The easiest way is to solder your thermocouple
Electronics Forum | Tue Feb 03 10:10:27 EST 2009 | milroy
Hi, There is one thing missing still, you must put a TC from the bottom side of the BGA by making a hold on the test board at the TC can measure the temperature at exactly the middle of the BGA. You should be able to the dual time and peak temperatu
Electronics Forum | Tue Feb 03 14:19:29 EST 2009 | grics
I would agree if you have a board to setup the process. But sometimes this doesn't work... If for some reason if the customers AVL has a Lead Free BGA and I am running Leaded paste (yes this really happens!), you will need to run hotter to get your
Electronics Forum | Thu Jul 12 05:22:00 EDT 2012 | rob
Hi George, The extra pad is just for mechanical strength, it's not connected. As the Liteon LED is just a side view & nothing special you may get lucky and find that a someone like Rohm, Avago or Osram make something without the centre pad that stil
Products, services, training & consulting for the assembly, rework & repair of electronic assemblies. BGA process experts. Manufacturers Rep, Distributor & Service Provider for Seamark/Zhuomao and Shuttle Star BGA Rework Stations.
Training Provider / Manufacturer's Representative / Equipment Dealer / Broker / Auctions / Consultant / Service Provider
1750 Mitchell Ave.
Oroville, CA USA
Phone: (888) 406-2830
