Electronics Forum | Sun Apr 04 00:51:01 EDT 2010 | jmelson
On the Xilinx chips, I am pretty sure these hairs are NOT tin whiskers. The solder in this particular build was SnPb, and pure tin would almost certainly melt at soldering iron temperatures. My theory is that slivers of the lead frame material, lik
Electronics Forum | Thu Feb 04 03:54:46 EST 2010 | mika
Hi, I know that I been out for this exact error message before (several years ago) and I am just thinking about it. It was something simple... Ok. When You say stops in the middle of placement phase; Do you mean in the first task block, have it alre
Electronics Forum | Thu Feb 04 09:18:18 EST 2010 | mika
Problem! Then replace the motor! Why not replace be belt anyhow? How long was it since the last time you replaced any belt? Another thing you could also do; In the LP (Low Power) chassis lower front left, find the correct motor servo card and "Null
Electronics Forum | Tue Jan 26 09:33:24 EST 2010 | smt_guy
Hi, I have a copper plate that we received from supplier with oils and some sort of stains. We tried most of the general type of degreasers by soaking but didn't work until we tried a Floor Stripper from Ace and it does make the copper clean and shi
Electronics Forum | Mon Feb 01 14:24:45 EST 2010 | boardhouse
Hi Jamyboy, I would find out from DDI what the 70% was rejected for, Could have been a repeat issue due to a scratch in artwork or something like that. I would not just jump and tell them to rebuild all until you know the facts. DDI is a very re
Electronics Forum | Tue Feb 02 17:10:03 EST 2010 | flipit
Remember this is a 30 layer PCB. If it is built in a multi up panel, there is lots of room for error. Lets say there are 10 circuits per panel. Say you have a 10% scrap rate that happens randomly within the 10 up panel of circuits. Apply this 10%
Electronics Forum | Thu Feb 04 09:31:21 EST 2010 | llaerum
I was wondering if someone on this forum are in Austin or Dallas. If so could they post the type of SAC305 WS solder they use. I am interested in type 3 and type 4. Due to our current vendors repeatability issues we are trying to find out who the la
Electronics Forum | Mon Feb 08 20:18:39 EST 2010 | city4497s
Hi I'm looking for a auto mold machine for PCBA application in singapore, anyone have any recommendation. My PCB size is 160mmX42mmX0.6mm, the units are arrange in array form and there are about 12 ~ 20 unit per strip. the mold size is about 15mmX5m
Electronics Forum | Thu Feb 11 10:59:09 EST 2010 | sumote
I am having some trouble finding an ESD safe wash basket liner. The trouble isn't finding someone who sells a product, the problem is all 3 products I have evaluated fail testing. All 3 were generators in excess of 2kv with 1 hitting over 4kv! This i
Electronics Forum | Fri Feb 19 14:31:07 EST 2010 | scottp
Whether or not some fraction of their products are Pb free is irrelevant to the fact that people with absolutely no inside knowledge are out there speculating that Pb free is the root cause of Toyota's current problems. I don't like Pb free any more
