Electronics Forum | Mon Feb 28 16:21:41 EST 2005 | lyrtech
Thanks a lot to all of you! I found my problem: It was the pressure of the ultrsonic spray fluxer who was to low. The flux didn't wet all the hole and the solder didn't fill completly the hole. No one in my area knew the solution. Thanks one more ti
Electronics Forum | Thu Mar 10 10:06:08 EST 2005 | steve
OK all you Gurus here's one for ya. Customer is tinning wires with standard eutectic solder in a solder pot. There is a blue tint to the solder in the pot. After tinning with OA flux, which I will change to NC shortly, he has clear teflon insulation
Electronics Forum | Thu Mar 10 15:43:06 EST 2005 | steve
Thank you both for your assistance. I knew that I could count on you folks. The customer has purchased No-Clean flux and is using it as we speak. Hows that for customer service.... All in a days work... Thanks again You make me look good!!! Steve
Electronics Forum | Wed Mar 16 09:48:44 EST 2005 | jdengler
I'm with Russ on this one. Had a similar problem with a flex circuit that used gold contacts into a ZIF connector on a ridged PCB. After may test I finally convinced the customer to do some test on the ZIF connector. The end result was flux contam
Electronics Forum | Thu Apr 14 18:51:19 EDT 2005 | KEN
What side is the short occuring on. Topside or bottom (solder) side? 2. Pitch of hole pattern = ? 3. Your x-ray may not have the resolution or DSP capable of detecting this defect. How does your profile look? Is this a true short or the result
Electronics Forum | Thu Apr 14 05:20:58 EDT 2005 | aj
All, I am considering trying out the above to try and eliminate some of my defects on the wave process aswell as reducing cycle time etc. Incase of unfamiliarity with what it is : basically there is a Solder Preform present on the Header/Connector a
Electronics Forum | Mon Apr 25 02:25:32 EDT 2005 | Mike Konrad
The issue of using ultrasonic technology for post reflow de-fluxing presents challenges in two categories: Controversial: Although there are recent studies that indicate acceptance with ultrasonic technology on populated assemblies, there remains si
Electronics Forum | Wed Apr 27 06:57:47 EDT 2005 | steve
I always have a difficult time with seeing people using two different manufacturers products. Here your printing with Senju and hand soldering with Kester. So if theres a problem you have to look at two different products, contact two different compa
Electronics Forum | Mon May 16 16:40:50 EDT 2005 | russ
Fred, give us a quickie at what you will be soldering Single sided thu hole, double sided SMT, both, lead pitches and protrusions, Flux type, and such. Buying a used wave can be tricky and the more info up front the better we will be able to tell yo
Electronics Forum | Wed May 25 18:33:18 EDT 2005 | russ
We have passed testing using this process, I would consider it on a case by case basis however. We are very careful about the quantity of the O.A. that we use. The water soluble flux is gone after cleaning unless it was/could be encapsulated or tra
