Electronics Forum | Wed Mar 01 16:58:03 EST 2000 | Dave F
Robert: On your balls: Solder suppliers make several "standard balls" and can advise you. On your cleaner: Recycling water / direct to drain? Most batch cleaner suppliers can advise you on recycling and filtering systems to keep you out of troub
Electronics Forum | Fri Mar 24 03:06:35 EST 2000 | Sal
guys Using a well estrablished water soluble solder paste, but having problems with tack time. Data sheet recommend a couple of hours but we are seeing problems after about 15 minutes with 0402/0603 componenets bouncing off. The printer environment
Electronics Forum | Thu Mar 09 22:03:04 EST 2000 | Charles Leech
DaveF: Since these SMT "spounges" get wet in Singapore and they got to get dry in Singapore, the airfreight idea won't work. I don't think the airlines would be too thrilled with a teathered ballon floating 10,000 feet in the air over the city. STAT
Electronics Forum | Fri Mar 03 16:11:07 EST 2000 | cpitarys
Yes it is Ok and some folks ae doing it now, but unfortunatly IPA may not be the best solvent for this application. Take a small vial of the ipa and put some of your smt adhesive into it, shake it up and watch what happens, now step this up onto a l
Electronics Forum | Fri Mar 03 09:48:06 EST 2000 | Wolfgang Busko
I have heard about it. The main reason is to save money. The problem is, or better is said, that the mixing isn�t that simple for you got have a homogen paste afterwards and the solderballs shouldn�t be deformed in size so that problems during printi
Electronics Forum | Wed Mar 01 16:58:03 EST 2000 | Dave F
Robert: On your balls: Solder suppliers make several "standard balls" and can advise you. On your cleaner: Recycling water / direct to drain? Most batch cleaner suppliers can advise you on recycling and filtering systems to keep you out of troub
Electronics Forum | Wed Mar 14 22:41:03 EST 2001 | CAL
There are also Process monitoring tools that mount directly to your blades and monitor the paste. Impedance Spectroscopy is the process monitoring theory behind the tool. It works by having good sample data logged that the monitoring tool can compare
Electronics Forum | Tue Mar 20 03:21:32 EST 2001 | hany_khoga
Dear Mr. Stephen: After all boards we lost & hard time we had, the only convencing solution for us is to run a good pc_motherboard (which is our product)to confirm the experiment. After that we need to remove the big BGA ,clean & flux the PCB then s
Electronics Forum | Tue Mar 20 05:56:03 EST 2001 | peterbarton
'Durostone' is available in the UK in 2 forms. Conductive and non-conductive. The conductive version is known as type CAS761. We use: Rochling Materials Ltd Waterwells Business Park Waterwells Drive Gloucestershire GL2 4AA United Kingdom Tel: 01452
Electronics Forum | Thu Mar 22 03:26:42 EST 2001 | moseschee
Hi Dave, Thank you for your reply.It means a lot to me. By the way, is it possible to have the analysed data on the study you mentioned regarding the solderability "conditioning " ? Can we establish the correlation of solder shelf life based on y
