Electronics Forum | Wed May 21 09:31:09 EDT 2003 | caldon
I need to first understand what "Peeled the BGA off" means. Was heat used? was this the pry and lift method? We had shorts under some BGA's we have and the solder was bridging from lead to lead but not on the board level at the FR4 on the BGA creati
Electronics Forum | Fri Sep 12 06:02:55 EDT 2003 | Neil Trelford, Nortel
Even though you use a no clean process, it is still possible that some type of fluid has created the "short". Production lines are notorious for using cleaning chemicals on PCBs to clean excess flux after rework on other areas. Unless this type of c
Electronics Forum | Thu May 15 14:11:04 EDT 2003 | Dyann
Hi, I'm a non-technical person working for a small MFG company that uses SMT. We are experiencing a high level of board failures due to "insufficent soder". Where is the best place for me to get data to bring myself up to a level of knowlegde on
Electronics Forum | Thu May 22 11:59:48 EDT 2003 | pjc
The following are some companies that supply MRPII / ERP programs for the manufacturing industry. These programs have the ability to store traceablity information from factory automated systems with LAN connections and to receive manual data entry or
Electronics Forum | Tue May 20 05:01:27 EDT 2003 | gavinscott
Hi, I have had this problem in the past and the best method I found was... Before removing the old syringe and fitting a new one, ensure the viton tubing is doubled over and pinched. This will help to eliminate any airlocks in the viton tubing whic
Electronics Forum | Wed May 21 10:01:36 EDT 2003 | caldon
Zestron Has PDF down loads available on the Product listed above. Also, Contact Jeff Stong or Guy Ramsey at ACI for a neutral opinion on these product. I know for a fact ACI has test each product and has recomendations. Sorry i can not provide deta
Electronics Forum | Wed May 21 20:09:32 EDT 2003 | MA/NY DDave
Hi President-MikeK and Carl, Well I just stopped by for awhile, and this was the first topic I read. Hey I am doing ESD research right now and I needed a break. Mike I have to agree more with Carl than you. Give your Data, without marketing hyper
Electronics Forum | Tue May 20 12:35:45 EDT 2003 | Mike Konrad
This probably a reflow issue, not a cleaning issue. Although ultrasonic cleaners are not normally used in post-reflow applications (fear of internal wire bond damage), I have never heard of broken solder joints caused by an ultrasonic cleaning syst
Electronics Forum | Thu May 22 00:21:27 EDT 2003 | AlCapone
The alternative is by looking at all your components data specs (heat-range), especially pay more attentions to heat-sensitive comps, and fine-pitch comps, odd-form comps, draw a diagram on a separate sheet of paper shown that temperature VS those ca
Electronics Forum | Thu May 29 13:02:57 EDT 2003 | designchain
Well that's one parameter and inadequate to specify either part. EPROMs aren't synchronous so specifying a clock rate doesn't really help - are you looking for a 50ns access time? 5V? 3.3V? What size memory? One-time programmable or UV eraseable or
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