Electronics Forum | Tue Aug 20 11:24:46 EDT 2002 | yngwie
Experts, Is there any reference to the best wetting time when doing manual soldering in order to get the most reliable joints i.e to avoid thick intermetallic line formations. I heard people says, the shorter the better, but how short is short...sa
Electronics Forum | Thu Aug 22 07:48:30 EDT 2002 | Dave Milk
While separating individual pcbs from a panel, operators have caused delamination of the edge of the board, at the tabs that were cut. How can these boards be repaired? The delamination causes them to fail J-STD-001C 9.2.1.1.d. Also, what would yo
Electronics Forum | Tue Aug 27 08:13:29 EDT 2002 | mk
Our company uses a conveyorised aqueous cleaner to wash printed circuits after water soluble solder paste is reflowed. The system is closed loop with carbon and resin filters. The water eventually will get dirty. Can it be dumped? Treated? How do y
Electronics Forum | Fri Sep 06 11:16:08 EDT 2002 | dason_c
To check any solder crack, open under the BGA/CCGA. I am using a destruction test to find out is it related to the reflow profile or the Fab issue. 1. Depense the Dye (I use Dykem Steel Red) under the device. 2. Cure the dye 3. Remove the device 4.
Electronics Forum | Tue Sep 03 14:22:25 EDT 2002 | dragonslayr
It's the latest rage at the California State Fair. A double dose of sugar rush and cholesterol. Get 'em fresh outta the fryer, ummmmmm goood!!!!! for those of you wanting to do a home version - be sure that your fryer grease is at least 375 F, and
Electronics Forum | Fri Sep 06 09:43:01 EDT 2002 | pmathieu
Hello friends, I am looking for some information in heatsealing technology manufacturer we use it in order to solder for example flex link to a PCB and we need to have a look to other brand , actually we use a swiss brand called COVATEC thank's fo
Electronics Forum | Tue Sep 10 14:43:21 EDT 2002 | finepitch
I'll keep this short and end with another CM sales pitch. I do not suggest "cutting the bleeding arm" as few others suggested. There are good CMs sending "fully" populated boards. And there are good overseas ones where their average wage is US$4 wh
Electronics Forum | Fri Sep 13 14:35:03 EDT 2002 | davef
Thanks Bernard. On your profile: Adding gold to your solder alloy will increase the liquious temperature. So slowing your reflow oven conveyor is a perfectly reasonable approach, especially for pads with low surface area. We don't even notice a di
Electronics Forum | Wed Oct 09 08:44:05 EDT 2002 | apg
Dear colleagues. I ask you to prompt me about necessity of drawing pastes through a stensil at the soldering micro BGA with step between leeds 1 mm and 0,8 mm or uses only a flux for this purpose. And what most suitable paste for the soldering of su
Electronics Forum | Fri Sep 13 12:30:05 EDT 2002 | bobm
I have heard a lot of different stories about reusing solder paste. I take what is left on the screener at the end of the day (yes i try to watch the amounts that are put down)and transfer it to a clean solder paste jar. I would like to hear any inpu
