Electronics Forum | Fri Mar 10 12:12:55 EST 2000 | Russ
Casey, I will start with the lack of thermo-couple control - The unit I have is based on time and temp. exclusively. What happens when a cold board gets reworked vs. a hot board? No bottom side preheat, the heating is very localized to topside a
Electronics Forum | Fri Mar 10 12:12:55 EST 2000 | Russ
Casey, I will start with the lack of thermo-couple control - The unit I have is based on time and temp. exclusively. What happens when a cold board gets reworked vs. a hot board? No bottom side preheat, the heating is very localized to topside a
Electronics Forum | Tue Aug 10 13:05:57 EDT 1999 | ScottM
| Folk's, | | I'm looking for some helpful suggestions for reworking wave soldered bottomside components that have been glued. | I'm not a fan of the twist and break approach and as some of them either have a double dot or a slot configuration this
Electronics Forum | Thu Jun 26 08:49:21 EDT 2003 | caldon
Depends on your Material (Chemistry) and Machine. We use a hot plate with the material in an "L" patern. The Hot plate is used only in aiding the capillary action. Also, is time an issue?? Here is a good paper from Asymtek that was poster in Advan
Electronics Forum | Wed Feb 13 11:24:06 EST 2019 | SMTA-Joe
Correct. silver-plated Aluminum in fact.
Electronics Forum | Thu Mar 17 22:47:29 EST 2005 | davef
That would be our first guess, also. Get the stuff analyzed to be sure. Another clue is if the white stuff disappears when you hit it with hot air from a rework station. The hot air is activate the flux. Good troubleshooting tool, but you're subj
Electronics Forum | Sat Apr 21 16:16:15 EDT 2007 | GS
150 grams)on a very thik board (> 3,5 mm)( we did it by DRS-24). On top to this, in case of need you can use also hot N2 (Nitrogen)and get low ppm of O2, for instance when soldering on OSP finisching using NC paste, etc, if required. Regards...GS
Electronics Forum | Tue Oct 19 10:53:14 EDT 1999 | Carol Zhang
Hi, I tried to use high temperature solder (540 - 570F)to connect four spacers on the board. The solder mask around the spacers wrinkled a lot.I can even see a few bulbs around it. I use hot plate and solder rings. After hot plate is heated to appr
Electronics Forum | Wed Mar 14 09:16:45 EST 2001 | gsmguru
In the past I've removed shields with a dedicated hot air machine. (Similiar to an SRT) This machine could remove and replace shields using a stereo microscope and a positioning system. Basically a special nozzle is designed for each type of shield.
Electronics Forum | Tue Oct 29 15:55:16 EST 2002 | babe
If you are using a low end hot air system IE: Weller, Hakko or Pace then your problems are with the system and not necessarily with your process. However process is important. We have found by inspection with an Ersa Scope (BGA inspection system) tha
