Electronics Forum | Tue Feb 17 10:55:49 EST 2004 | bobbyv40
Hi Dave, 1. As far as speed of removing componants, we use a board preheater to bring board temp to about 150 C. Then add a flux and then flood all 4 sides of the componant with the low temp solder. Using a suction tool the part comes right off. The
Electronics Forum | Thu Mar 04 14:37:44 EST 2004 | cyber_wolf
Try buying your paste in 500g pyles cartridges .You can use these cartridges in a standard caulking gun. Also.. have your paste vendor supply you with some empty jars.(They will usually do this free of charge) Whenever you run a job, dispense paste
Electronics Forum | Mon Mar 08 09:03:17 EST 2004 | russ
Is this problem really related to the size of the BGA OR the size/thickness of the PCB? Would I be correct in assuming that your pre-heater is small in size? Usually a board warps like this when the ramp is to great at the localized area. the imme
Electronics Forum | Tue Mar 09 20:08:08 EST 2004 | davef
Warping BGA are the usual cause of shorts in the corners and are usually caused by the reflow profile. BGA have a natural tendency to warp due to CTE and package thermal mismatch, as you have seen at rework. The PBGA will go from a bowl shape to an
Electronics Forum | Tue Mar 09 22:26:17 EST 2004 | davef
You should to be soldering to the nickel. The intermetallic is Ni3Sn4. "At relatively low temperatures, the tin-nickel layers form about as rapidly as the tin-copper layers do, but at higher temperatures their growth rate is distinctly lower. At 10
Electronics Forum | Sat Mar 27 12:32:34 EST 2004 | Bill
I am looking for technical support for our two RTI 6500 AOI equipment. We had worked with CR-Technologies in the past --but from what I understand, they had been absorbed by PhotoDynamics. Which is where you end up if you try to go to the old CRTe
Electronics Forum | Mon Mar 29 14:49:02 EST 2004 | stefwitt
Most of the Siplace users import their data over the Ethernet. In order to do that as well, you will require a physical LAN connection and than a software capable of talking from Windows to Unix like Samba. http://www.samba.com Once you can access th
Electronics Forum | Fri Apr 02 10:23:38 EST 2004 | mapell
Hey Matt We manufacture reflow equipment and use all types of profilers. We currently use ECD, KIC, and DataPaq in our testing depending on how our customers want to see the data. In my experience they are all good systems. I have not really ru
Electronics Forum | Tue Apr 06 15:32:54 EDT 2004 | pjc
Try these guys too: http://www.sigmaprint.co.uk/ Regardless, the parts are most likely stocked only in the U.K. Your machine was orginally manufactured in the U.K. by a British company called SMTech. SMTech was purchased by Quad and then sold to Sp
Electronics Forum | Wed Apr 14 05:44:36 EDT 2004 | hun
Hi All, Just have a share with you guy. We are using T4 solder paste and also E-Stencil. We ahd try out Alpha, Kester, AIM and Qualitek. The result show Alpha had a very very heavy stack flux and can't get it clean off even by chemical
