Electronics Forum: boarded (Page 989 of 1638)

Inline wash foam

Electronics Forum | Thu Jun 28 09:40:49 EDT 2012 | austinpeterman

We just stepped into the inline wash world with a techical devices new clean galaxy plus. We are noticing a significant amount of foaming when washing our boards after selective solder. One theory is that the water soluble flux used is not being cu

Inline wash foam

Electronics Forum | Thu Jun 28 16:02:05 EDT 2012 | allwave

We had a similar problem with foam in our inline cleaner (TD). The problem were the solder paste flux residues. Boards went straight from SMT to Wave process and then washed. Anyway we changed the solder paste and problem solved. Are you using saponi

QFN aligment issues

Electronics Forum | Thu Jul 05 15:52:02 EDT 2012 | stentech

What size frame are you using and what thickness and size is your stencil. I would ask your stencil vendor for their positional accuracy over 20-36 inches x-y. We have the capability also to make a photoplot in a controlled environment and over lay i

question about reflow- it it ever a long term solution?

Electronics Forum | Tue Jul 03 11:30:18 EDT 2012 | davef

Just so that we both on the same page: * When you "reflow the chips on the broken board," what do you actually do? How do you do it? What kind of controls do you use? * When someone "did a reflow on the south bridge chipset," what do they do?

Mydata - Level too high in pick

Electronics Forum | Thu Sep 19 10:27:10 EDT 2013 | rgduval

I believe there is a force calibration menu option in the maintenance menu. From the main screen, choose exit to maintenance to get into the maintenance menus. If you're still having force issues afterwards, you'll want to start hunting for broke

SPI for 32 x 22 Backplane

Electronics Forum | Tue Jul 17 08:20:03 EDT 2012 | rosborne

Hello Jorge, We offer both a large board AOI and SPI system. It is our Spectra platform. This system can go up to 24" x 36". Please feel free to call me with more questions. Best regards, Richard Osborne North American Sales Manager - Machine Vis

Ionic Cleanliness

Electronics Forum | Thu Jul 19 18:25:42 EDT 2012 | boriskilk

We have picked up a new customer who is insisting on Ionic cleanliness less than 6.45u grams/cm2 when measured in accordance with OPC-TM-650 Method 3.26.1 with measurements made immediately prior to solder mask application. This is the first request

Multilayer Ceramic Capacitor (MLCC) failure root cause analysis

Electronics Forum | Wed Aug 22 13:18:50 EDT 2012 | rway

I also forgot to mention that the pizza-slicers you are using can get out of spec and may need periodic calibration. By cutting too close, these can over-stress your pcbs as well. Do you only see this problem at one cutter or does it matter? Also,

Resistors metallization problem

Electronics Forum | Tue Aug 07 01:19:49 EDT 2012 | reypal

Thanks DucHoang, More input: 1. Tin/Lead s.paste on Pbfree component 2. Machine pick and place 3. Reflowed@ 210-230C peak @ around 15sec. 4. Boards are subjected to washing process 5. This issue can be seen after washing process. Do you think it

Question about Cost

Electronics Forum | Tue Aug 07 05:21:12 EDT 2012 | glichn

Hello Joe, PCB size 6" *6" is larger board. Resistors and LEDs are easy to do assembly. I think you can ask Beijing Glichn, from PCB stencil printer, SMT reflow oven and LED pick and place machine, they can give some suggestion. The investment is de


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