Electronics Forum | Fri Nov 22 17:55:39 EST 2002 | robertorre
Your problem may be related to different aspects. 1. Oxidation on landing pads. 2. Either high(To long over liquidous temp) or low temp. 3. Bad solder (not enough vehicles) Run this test: Set a hot plate to 220 degrees C. Make sure you have proper ve
Electronics Forum | Fri Nov 08 05:08:28 EST 2002 | zolasteven
Can anyone advise on the following : 1. Insufficient pcboard support during printing We are printing on double sided pc boards (approx. 8 ins by 6 ins). There is a problem of high paste when we are printing the second side. The reason bsing the boa
Electronics Forum | Mon Nov 25 20:57:23 EST 2002 | Kermit
Thanks to everyone who has responded so far. We are going with dedicated tooling for our phone cards but not for our system cards so that takes that out of the equation for the former, will evaluate for the system bds.. Thanks for the info.. Regard
Electronics Forum | Sun Nov 10 08:23:02 EST 2002 | davef
Organized or not, it is very easy to end-up with a bag of "fly shit" after sweeping the floor. Making measurements: * Search the net on "capacitance meter" to find an equipment supplier. HP [Aligent?] and IEC make very good meters. [We just use a F
Electronics Forum | Thu Nov 21 11:35:47 EST 2002 | hannahsd
We had several 4c's before we put them out to pasture. From my experience they are easy to make program adjustments, but like the previous person responded the auto programmer did not work for us. We had laser coplanarity check as an addition to th
Electronics Forum | Mon Jan 20 13:51:12 EST 2003 | slthomas
I seem to recall seeing some references to controlling the time above 205�C as a critical parameter, although I can't find it in the archives anywhere other than one reference to a maximum of 45 seconds. What's ideal (typically....I realize differen
Electronics Forum | Wed Jan 22 18:03:54 EST 2003 | slthomas
You probably pay the same as me. Ours is just fresher. ;) So fresh, in fact, that sometimes we can smell the brewery, when it's breezin' southerly. Not particularly appetizing, actually, although not as bad as the Stock Pot soup factory. City-wid
Electronics Forum | Wed Jan 22 21:59:54 EST 2003 | davef
First, wheat beer is not intended to be consumed at this time of the year in the northern hemishpere. It is ment to be consumed on the back porch, while smoking the LARGEST cigar you own, after mowing the lawn on a day that is so hot that the dog ca
Electronics Forum | Fri Feb 21 11:33:47 EST 2003 | Jaime
Call your glue manufacturer. It sounds to me that the epoxy is not curing properly. You should also test for shear strenght. How many pounds of pressure does it take to "pop" a cured component after it comes out of the oven? What type of oven do you
Electronics Forum | Mon Feb 24 10:21:29 EST 2003 | ryanm
Just an update on my problem. I spoke to Loctite and they had very few solutions. One thing they suggested to try was to add a thirty-second soak time at 150 degrees to my reflow profile. The problem with that is ramp-soak-spike profiles doesn�t s
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