Electronics Forum | Tue Oct 03 09:23:55 EDT 2006 | kenscj
We are encountering BGA solder open connection. At Functional Test, the board failed. Debug guy diagnosed this BGA open connection (2 locations), by using multimeter. Under 5DX inspection, there is connection. Take the board for localised reflow at
Electronics Forum | Tue Mar 01 11:11:50 EST 2005 | spot
We use SRT. We still have machines that are over 5 years old and are functioning very well in the BGA, QFP and yes CSP area. The critical part is getting the right Air nozzle for the part size. Also the software has a auto-profile feature that wor
Electronics Forum | Fri Nov 30 17:13:36 EST 2007 | stevek
Not sure about that model, but I've used several DRS 22's and find them easier to use than the DRS24 I inherited at my current place. The lack of automation makes doing things yourself easier. The newer automated machines need more programming. I'
Electronics Forum | Thu Aug 17 05:56:39 EDT 2000 | Jacqueline
Hi Folks, Hope yous can help. I'm having a problem when reworking (placing) 40mil BGAs. One side seems to be collapsing more so that the other, resulting in the outer row of balls not properly reflowing and making the connection. This is only happeni
Electronics Forum | Mon Jul 12 04:07:52 EDT 2021 | bangir
Has anyone have manual book for SRT Sierra SUMMIT 1100HR? I am looking for part number Top Heater of these machine. Thanks
Electronics Forum | Wed Jun 06 09:09:28 EDT 2001 | nwyatt
Help! I have been assigned to take over our current rework machine because the profiles have been changed so often and by so many people that they are now not working consistantly. Nobody has been supporting it for the past 2 years and now I have b
Electronics Forum | Wed Jan 14 23:08:19 EST 1998 | Ron Costa
Place your components directly on the PCB without using solder paste,unless your using high temp. solder spheres then you should use paste. If eutectic solder spheres are used try fluxing the BGA area and attach it directly to the board. This will re
Electronics Forum | Tue Oct 31 19:56:18 EST 2000 | Massimo
I'm reworking BGA with a "SRT Summit 2000". This machine uses a nozzle of the same size of the BGA to conduct nitrogen to the top of the BGA. When I rework big PBGAs (318PBGA, 388PBGA) I've got shorts at the corners (100% of the times!). I think the
Electronics Forum | Mon Apr 18 09:07:22 EDT 2005 | hitechsc
Metro technologies also manufacture specials and manufacture most machine nozzles, youn could try them.
Electronics Forum | Tue Jun 26 12:24:24 EDT 2001 | nifhail
Thanx for the reply Dave. We actually had a few thermocouples attached from underneath to see if there is any delta in temperature within the same BGA's ball. They looks OK, with the slope of 1 -2 Deg C,soak at 120 Deg C - 150 Deg C at about 90 sec,
