Electronics Forum: /09 (Page 306 of 1632)

solder strength

Electronics Forum | Fri Sep 02 09:02:10 EDT 2005 | dougs

you tell me, the customer has started to pull at some of the leads of some IC's with tweezers while de-bugging boards that had failed in the field, he was able to pull some of the leads away from the solder joints, we feel he may be over-doing it a

Dry and Clean Room in Tropical Climate

Electronics Forum | Tue Sep 06 09:59:32 EDT 2005 | slthomas

Find out if you can separate the dehumidifier controls from the heating/cooling controls, without adding an air handler. Otherwise I think you'd need to add a dehumidifier that runs independantly. Don't forget that system capacity has to be rated fo

Pick and Place Camera sees Red

Electronics Forum | Thu Sep 08 09:41:51 EDT 2005 | PWH

If you do find your camera is bad, I think they are relatively easy to replace if you get a new one. I have done a 1.0 and 4.0 GSM camera replacements but not a PEC as of yet. If it's like the 1.0 and 2.6 and 4.0's, likely it is not tough but will

Pick and Place Camera sees Red

Electronics Forum | Fri Sep 09 06:08:39 EDT 2005 | geb

I think it may be the card thats causing the problem. When both machines are set to display a live image, the faulty machine shows pink/red. When their cables are pulled out of the card the working machine shows grey/noise and the faulty machine stay

Pick and Place Camera sees Red

Electronics Forum | Fri Sep 16 09:39:15 EDT 2005 | electromek

We had some defective camera's on our GSM's. The repair guys wanted $12,500US for two replacements from UIC. I found rebuilds at this place in New York State for $249 each. They have been working great for two years now. I even got back $30 for the o

Tombstoning 0306's

Electronics Forum | Fri Sep 09 11:24:31 EDT 2005 | stepheniii

Talk to your paste supplier. The reps for a couple of pastes have been very helpfull on various problems. And I've seen pastes advertised as being good for reducing tombstoning. And they see lots of customers and therefore see lots of problems and

Tombstoning 0306's

Electronics Forum | Fri Sep 09 15:02:29 EDT 2005 | russ

What are the Mfg specs for pad layout? I had one that was wrong and we changed the center to center spacing to .032" and the width to .015" wider (.0075" on each side)than the solder terminations and everything was fine. As a general rule I never t

SMT Assembly

Electronics Forum | Fri Sep 09 13:27:28 EDT 2005 | Denis

Hello, I'm not sure if this is the right place to post this. I am looking for a place that would do surface mounting for me. I have the PCB already made and I have the SMT chip. I have tried soldering it with a solder gun, but I think I burnt out

Cleaning before Conformal Coating

Electronics Forum | Fri Sep 09 15:03:46 EDT 2005 | Amol

Hi, I am running a circuit board that needs a part to be put on it after cleaning and before conformal coating. the only problem is that after cleaning and hand assembly of the part, there is a thin whitish residue in the ckt board that one can see w

Cleaning before Conformal Coating

Electronics Forum | Fri Sep 09 15:53:22 EDT 2005 | patrickbruneel

If the white residue is from a no-clean flux or no- clean solder flux core you can leave it on the board. (Consult with the flux or cored solder manufacturer) Because after being encapsulated with conformal coating the residue is sealed from humidity


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