Electronics Forum | Wed Aug 30 23:45:23 EDT 2006 | ppcbs
Since BGA's are sensitive to contamination in the plating process, I always do a simple solderability test whenever we receive a new batch of boards. Take a board from the batch, apply no clean flux on the BGA site, then try to tin the pads with a m
Electronics Forum | Wed Aug 30 23:45:40 EDT 2006 | ppcbs
Since BGA's are sensitive to contamination in the plating process, I always do a simple solderability test whenever we receive a new batch of boards. Take a board from the batch, apply no clean flux on the BGA site, then try to tin the pads with a m
Electronics Forum | Wed Sep 06 17:13:17 EDT 2006 | Board House
PB-free Hasl was not mentioned due to the following: 1)Equipment Convertion at the PCB Manufacturing side is expensive. 2)You are subjecting the PCB to Higher Temps than Std. solder. 3)Most PCB Houses are not going to invest in Two Hot Air level
Electronics Forum | Tue Sep 12 16:53:58 EDT 2006 | stepheniii
Make sure you desicate the boards if they have MSDs on them. I'm guessing you have a part on the board you want removed, but can't do it normally. At one time I thought it might be slick to make a spring loaded Kapton tape "tent". The idea being th
Electronics Forum | Thu Sep 14 09:13:09 EDT 2006 | Steve
As Russ said, you aren't responsible for your customers product being ROHS if they didn't request it be built as such. As a CM we build what the customer requests. If they request a ROHS board and supply us with a ROHS bom, but ask for a HASL board,
Electronics Forum | Wed Sep 20 16:27:06 EDT 2006 | proy
As we are a low volume shop, the extra handling is not too much of a concern. My biggest concern is if the flux sitting on teh board for a long time (few hours) is going to cause any problems in solderability. My thought is that it should not as it
Electronics Forum | Thu Sep 21 13:27:09 EDT 2006 | jimmyjames
We 'bend and clip' with good old fashioned needle nose pliers and side cutters. A typical size for a run would be 20-30 boards. Many of our designs are over a decade old and are fully TSO'd (FAA standard) and we can't change anything in the design.
Electronics Forum | Mon Oct 02 10:50:02 EDT 2006 | bradlanger
Bob, I agree that these are all board shop issues. I think the only one that is related to the Hasl process is the surface mount solerability issues. I think they are still putting the coating on too thin even though they say it is fine. This proble
Electronics Forum | Fri Sep 22 09:06:33 EDT 2006 | daxman
We've got a problem with our AP25.. I just finished repairing and calibrating this printer. We needed to replace the camera. After the cal. was done, the print accuracy was superb. However, it seems now, the consistency will not maintain itself. T
Electronics Forum | Wed Sep 27 15:57:33 EDT 2006 | SWAG
I wanted to post resolution on a reflow oven problem we had but can't seem to search out the old thread. So, this is new but old. Our OmniFlo 7 conveyor was stopping every once and a while and the speed indicator on screen said 1000+ ipm. We cle
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