Electronics Forum | Tue Apr 22 13:05:01 EDT 2003 | Mr. B
I am curious on some opinions on cleaning of boards. We have a board wash but after the wash we still need to stem them for better cleaniness. The timed steaming is prox. 2 mins a side and by the way this is a medical board. So if you got and suggest
Electronics Forum | Sat May 17 02:13:43 EDT 2003 | Hon Choi
Thanks all. We are using no clean, so the boards are not washed. That would eliminate the trapped water issue. We would check the PCB after dismounting the BGA, and the short would not be found. When we place another BGA on the board, the board w
Electronics Forum | Thu Jul 10 15:05:30 EDT 2003 | stepheno
Don't forget about moisture sensitive devices already on the board if you are reflowing the entire board again. No doubt the other BGA's have been absorbing moisture since the boards were first reflowed. You may have to bake the boards before reflo
Electronics Forum | Mon Oct 06 15:48:21 EDT 2003 | Adam
Please help, we have by mistake repaired some boards using the wrong flux (water soluble on a no clean board). Unfortunatly we found out later on while we are testing the boards. The lab anyalysis clearly showed that the flux has eaten through the
Electronics Forum | Mon Oct 06 16:18:30 EDT 2003 | pjc
If the flux is already eating thru Cu it must have been some time since the boards were soldered with the OA flux. Ionic contamination testing (with OmegaMeter or IonoGraph)can be done to find contaminated boards and cleaning the boards can be done
Electronics Forum | Mon Mar 01 23:37:49 EST 2004 | Bill Ladakos
I would recommend trying a Board-lok Tooling support fixture. In my opinion, no other tooling support system or fixture compares to the type of support board-lok provides. They can manufacture the board-lok with many options such as vacuum, tooling p
Electronics Forum | Thu Sep 15 02:51:45 EDT 2005 | Joris Groot Koerkamp
In our current process we don't need to dry our pcb's. We use FR4 HASL boards. For the leadfree process we want to use NickelGold plated boards. Do we have to dry these boards for the leadfree process or can we just seal them with silica gel?
Electronics Forum | Thu Sep 29 11:44:47 EDT 2005 | stepheniii
What kind of volume? I've done boards that I think were longer on a standalone mydata. The boards hung over the end of the table and we had to leave the feeder bank to the right of the table empty. But later we did the same boards on a panasonic. I"
Electronics Forum | Fri Oct 07 14:59:07 EDT 2005 | gregcr
Hi Jimmy, We use flat belt exit conveyors. They are set-up to collect the boards and set off an alarm when the belt is full. This allows the boards to come out, but you don't have to pay someone to stand there and catch each board. Also eliminate
Electronics Forum | Sun Oct 30 19:22:11 EST 2005 | mrduckmann2000
Ken is not of this World! His equipment and "Programming Team" is perfect. The rest of the world uses "sticky" boards when programming. "ALL" the big guys...Panasonic, Fuji...etc suggest using the "sticky" method beofre running any production boar
