Electronics Forum | Thu Jun 05 18:11:53 EDT 2008 | jlawson
Also coating costs depends on solids content vs final dry film thickness. Some newer UV coatings are 100% solids, so what you put down you get on the PCB after cure, use no solvents at all. So a cost to look at are qty of PCB per litre of material. T
Electronics Forum | Thu Feb 10 04:07:29 EST 2000 | Wolfgang Busko
Jeff: We had a similar problem a couple of years ago with boards from one specific subcon. At first sight the joints looked well formed sometimes with a little bit more sometimes with a little bit less solder but still in limits not to be worried abo
Electronics Forum | Tue Aug 22 10:22:59 EDT 2000 | Wolfgang Busko
Mark: The fact that these daughter boards have to be attached to the TSOP-footprints is what makes the thing difficult cause they will be greater than the original part. One could think that a LCC-design allows for proper routing. But when it comes t
Electronics Forum | Thu Dec 16 06:59:43 EST 1999 | Christopher Lampron
Calvin, We have found several reasons for solder beading occurance. We have found that solder balling is usually directly attributed to the reflow profile while solder beading is usually (but not always) a result of either excessive solder paste volu
Electronics Forum | Wed Dec 01 13:19:52 EST 1999 | Wolfgang Busko
Hi Dick, first of all I will not judge what�s the best in your case for I don�t know all details of your situation. Just my opinion: As a matter of fact the amount of THT is rapidly decreasing compared to SMT. So, to stay in assembly business it vita
Electronics Forum | Wed Oct 06 09:23:47 EDT 1999 | Wolfgang Busko
| I would like comments on how the industry handles 0402 parts, regarding identification. Since the parts are too small to be labeled, how can we accurately identify the parts and or values, either before or after assembly? | When the boards go to te
Electronics Forum | Thu Oct 08 22:32:58 EDT 1998 | Dave F
| | | | I am trying to find out, what possibilities I have, to print solder paste on a board, when the task is to have 120 Microns thickness for the biggest part of the board (85% of the real estate), and then have 250 Microns of thickness on the re
Electronics Forum | Sun Sep 19 03:29:55 EDT 1999 | Brian
| | | | I am not familiar with the "mil" metric. How many inches is in 1 mil? | | | | | | | | ...or 10 mil? | | | | | | | | | | | 1 mil= .001 inches | | | 10 mil= .010 inches | | | Also, it has nothing to do with metric. | | | | | | I was also
Electronics Forum | Sun Sep 19 03:38:43 EDT 1999 | Brian
| | | | | I am not familiar with the "mil" metric. How many inches is in 1 mil? | | | | | | | | | | ...or 10 mil? | | | | | | | | | | | | | | 1 mil= .001 inches | | | | 10 mil= .010 inches | | | | Also, it has nothing to do with metric. | | | |
Electronics Forum | Sun Sep 19 06:15:41 EDT 1999 | Earl Moon
| | | | | | I am not familiar with the "mil" metric. How many inches is in 1 mil? | | | | | | | | | | | | ...or 10 mil? | | | | | | | | | | | | | | | | | 1 mil= .001 inches | | | | | 10 mil= .010 inches | | | | | Also, it has nothing to do with m
