Electronics Forum | Fri Mar 15 18:44:34 EDT 2013 | anvil1021
We will try both the solder mask and the .001" Kapton and see where we end up with each. This is a fine pitch dual row QFN and we cannot afford too much paste on the .004" stencil we are using. We have experienced shorting in the past with .005" sten
Electronics Forum | Tue Mar 19 13:02:49 EDT 2013 | caurbach
We've used masking tape and peelable (pink) mask to mask our boards before conformal coating for a long, long time. This is a huge time sink, and increases our lead times (particularly because of the cure time for the pink mask). What are other com
Electronics Forum | Wed Mar 20 14:21:28 EDT 2013 | jeffharley
Hello All, I am wondering if anyone has come up with an easy and safe way to drain a solder pot on a wave solder machine? We are getting rid of an old machine and replaceing it with an newer machine and we want to use as much of the solder from the o
Electronics Forum | Mon Mar 25 15:32:34 EDT 2013 | jimmyboz
Are you concerned with physical vibration or electronic interference? If you can see your morning coffee have "rings", screen printers may suffer. Trains are a monsterous source of electrical "noise", just by thier engine (electric and diesel) not
Electronics Forum | Thu Apr 11 11:06:27 EDT 2013 | ericrr
1) I think maybe not, however having said that, our conveyor does not work between the final placement machine and the oven, in the early days before I became a "experienced" operator in pulling the board out of machine running it along the track to
Electronics Forum | Wed Apr 17 08:35:17 EDT 2013 | emeto
I currently run Siemens and they have their own recommendations about placement force. Most of the passive parts will be placed using 2N. For some BGA'a we will go about 4N and for certain parts that are very easy to break you should go 1N. All parts
Electronics Forum | Thu Apr 04 07:09:39 EDT 2013 | leemeyer
Autoprogram will use whatever tape feeder width is defined for that component (SMD type)and will adjust the pickup accordingly. Autoprogram will not tell you where to place Vibs and Matrix trays. You need to decide where to mount the holders. Then m
Electronics Forum | Tue Apr 09 16:31:49 EDT 2013 | alfredodsanchez
Hello everyone! I have a problem with PCB, we detect that some contamiation apear (dark spots similar to glue or underfill) we detect that this element is Policarbonate. I don't know if on PCB fabrication process some policarbonate are used. We alr
Electronics Forum | Thu Apr 11 14:11:10 EDT 2013 | dontfeedphils
If it's using the laser alignment try changing the part type to "SOT" instead of chip, and then enter the dimensions for only the body of the component. The "Chip" setting will measure the part half way down the body, the "SOT" setting will measure
Electronics Forum | Thu Apr 18 17:42:26 EDT 2013 | navworx
Just because a feeder has 8 pins on the front > does NOT mean it is IQ. The IQ feeders started at > a certain level of feeder part number.....which i > do not remember being that many people dont use > the IQ system. > > Good Luck It has PLD v
