Electronics Forum | Wed Mar 14 11:24:32 EDT 2007 | Scotceltic
Have you thought about switching to either automatic paste dispensers or rhemoetric pumpheads in order to contain the paste and only dispense what is needed during your shift ? I am not sure what type of printers you have, but I know both of these o
Electronics Forum | Wed Mar 14 07:30:14 EDT 2007 | davef
So, you toss whatever is on the stencil every 8 hours. Correct? How long has it been on the stencil? * If that particular paste has been on the stencil for 8 hours, we'd agree to toss it too. * If paste has been on the stencil for less than 8 hour
Electronics Forum | Sat Nov 17 12:58:12 EST 2007 | mika
I agree with previous postings regarding print speed: Solder paste type/versus fine pitch. Question: Is this a double sided pcb with fairly easy component packages on both sides? In such case, consider make the panel like this: Every second pcb in
Electronics Forum | Mon Nov 05 16:54:00 EST 2007 | bbarton
There are several things that can be done to increase throughput on you screen printer, including the panelization of your bords as Steve & Hussman has pointed out. However that's of limited use if you have plenty of stock that is not panelized. That
Electronics Forum | Fri Nov 02 07:20:43 EDT 2007 | hussman
Why look at buying expensive equipement when you can have your board house multi-up a panel of boards for you. You just saved at least $150,000 American, didn't have to re-evaluate any solder paste, and even opened your process window on your oven.
Electronics Forum | Wed Dec 07 11:54:37 EST 2005 | russ
Would you by chance be soldering copper to aluminum?
Electronics Forum | Wed Dec 07 12:28:37 EST 2005 | PWH
I have seen problems similar to this caused by too high concentration of cleaning solution used in ultra-sonic cleaning process. If cleaning solution is used, make sure it is compatible with solder process. Also, improper mixing of fluxes and solde
Electronics Forum | Wed Dec 07 00:44:31 EST 2005 | arnold
were having a problem on the units after soldered. after few hours or days the soldered wires has green decay. what does it cause. how can i prevent this.
Electronics Forum | Wed Dec 07 07:20:02 EST 2005 | davef
We need more information about the situation. For instance: * Describe the green residue * Talk about the distribution of the problem, including a single lot or from various lots and over components and component types on the board * Tell us about t
Electronics Forum | Mon Dec 26 23:19:29 EST 2005 | arnold
is there any term called on that corrosion or green contamination?
