Electronics Forum | Wed Jun 18 09:13:44 EDT 2008 | realchunks
You're barking up the wrong tree. Solder "splashes" are generally caused by your print being off pad a bit. They are called solder fines. I've never seen a placement machine have the capability to push paste around using it's kiss-off from the noz
Electronics Forum | Wed Jun 18 12:56:31 EDT 2008 | ampearl
I need to find a qualified candidate to join a communications company in the SMT department. The project calls for an individual who has worked with product development building prototypes and testing them in an R&D environment, as well as workin
Electronics Forum | Fri Jun 20 09:20:04 EDT 2008 | ampearl
I need a technical specialist to turn-on, trouble-shoot, modify, repair, and test the power supply prototypes at the printed circuit assembly and instrument levels. This person would be involved in setting up both manual and automated tests, making m
Electronics Forum | Mon Jun 30 08:55:31 EDT 2008 | davef
It will be tough to find a dimensional thickness specification for HASL. IPC-6012 Table 3-2, line "Fused tin-lead or solder coat - Coverage and Solderable" states the requirement that there has to be complete coverage of solder on the land, and it mu
Electronics Forum | Sat Jun 21 23:15:07 EDT 2008 | mika
Also keep in mind that the CCGA column length tolerance is at minimum +/- 0.13mm from most part manufactures and they don't collapse in the same way as a BGA, therefore the paste height deposit could be critical in some rare circumstances. Board warp
Electronics Forum | Wed Jul 02 16:46:12 EDT 2008 | jmelson
Yeah, way back in the beginning, I was VERY suspecious of the whole thing, as car batteries that had KILOS of lead in them were not regulated in any manner. It seems to me a car battery smashed in a wreck and spilled into the storm drains is 10,000
Electronics Forum | Tue Jul 08 12:04:31 EDT 2008 | patrickbruneel
Military is outside the scope of the directive. The RoHS directive is mainly focused on electronic equipment with a high potential to end up in the normal waste stream such as consumer products. The EU commission also knows that removing lead from a
Electronics Forum | Wed Jul 09 18:36:08 EDT 2008 | jmelson
Just to clarify, I tried to read a summary of the Oko institute report, but it was in some word processor format I wasn't quite compatible with. But, I did get some of it. It appeared to restrict ANY use of nickel (couldn't tell if that was in allo
Electronics Forum | Thu Jul 10 10:46:26 EDT 2008 | patrickbruneel
Real Chunks, I intercepted the email below from the RoHS USA pushback mailing list. This email comes from an engineer employed by the largest OEM in Belgium. Looks like you made a great point that �work� can take on several meanings!!! ************
Electronics Forum | Fri Jun 20 18:32:55 EDT 2008 | hegemon
Back when I used to do a lot of these style devices we ran into the same problem you are describing. Use a pattern for the center pad area and keep the total coverage to about 68% of the pad area. Diagonal Stripes, tic tac toe, cloverleaf, dot array
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