Electronics Forum | Mon Oct 30 12:07:42 EDT 2017 | slthomas
One thing that most of the sites I've worked in did NOT have was a room dedicated to SMT and the result is almost always a potentially dirty environment, even if you try hard to keep it clean. The one place I worked where they built a room specific
Electronics Forum | Thu Oct 05 12:10:36 EDT 2017 | duchoang
Thank you for your replies. We use No-Clean Paste and some customers do not want any residue left around solder joint even so, so little. They want the residue washed completely. If we use water-soluble flux, we still need to wash, anyway. Their conc
Electronics Forum | Mon Nov 20 12:36:42 EST 2017 | emeto
Hi, there are several things that I see here. 1. Part is saying misaligned on the top blue bar and missing on the initial list. 2. Part is neither misaligned, neither missing - it is wrong value. 3. How is your part thought? How many inspection wind
Electronics Forum | Thu Feb 01 03:02:50 EST 2018 | robl
Hi Rob, > > I did check with the board house, and > the confirmed that there was no Nickel plating, > but that the silver went straight onto the copper > in their immersion silver > process. > > Interestingly I've even tested an > unplated sam
Electronics Forum | Fri Mar 09 01:49:46 EST 2018 | reckless
Which machine did you like more and recommend? My feeling is the Juki is simpler and easier by design thus making it easier to maintain. The GSM is very robust, highly over engineered making it more costly to keep going. Harder to work on for
Electronics Forum | Tue Apr 03 01:56:37 EDT 2018 | sophyluo1985
Hi All, Anyone want to talk about how do you did the 1st sample inspection in your SMT department? I mean once you want to produce a new product. After the material on board, and before mass production, we always need to do 1 or 2 sample to test if a
Electronics Forum | Tue May 22 02:27:50 EDT 2018 | bukas
there are numerous factors: -stencil age -stencil finish and thickness -stencil-board vertical alignment -board support -squeegee pressure -squeegee blade material and condition question here is did stencil changed its dimension over time? ar
Electronics Forum | Thu Jan 03 15:53:28 EST 2019 | cbeneat
We did figure out the issue. The plastic cover inside the LED lighting unit had a slight film covering it, which made the picture slightly hazy. We had to disassemble the LED module to get at it, cleaned it and it was fine. I didn't think this would
Electronics Forum | Mon Jan 07 13:28:56 EST 2019 | slthomas
Hi, I would like to try to help, but I think I need help in understanding your problem better. 1) do you see any discoloration of solder joints on the first side, after first side reflow? 2) after second side reflow, are solder joints on just the
Electronics Forum | Tue Jan 08 08:52:30 EST 2019 | ameenullakhan
Hi Steve, We did the below trials today. 1. Run the board in O2 environment. result : Yellowish appearance was observed. After DI water Cleaning : Still the yellow color is there. 2. Same board run secondary side. Result : First side board yel
