Electronics Forum | Wed Jan 25 13:29:14 EST 2017 | emeto
you can check several things here: 1.Is this original tape or it is tape and reel service? 2. Is the cover tape that sticky, to lift component a little bit(sometimes might get the hole component). 3. Hole too loose, allow it to move too much 4. Fee
Electronics Forum | Wed Feb 01 11:33:37 EST 2017 | emeto
Joshua, 100um is 4mil aperture. You should ask several stencil houses about the possibility to print that small amount of paste(type 6 paste is available now with very small solder spheres 5-15um diameter). Even applying small amount(thin layer of f
Electronics Forum | Sun Mar 19 00:38:54 EDT 2017 | jlawson
1. Rehm Thermal Systems (Germany) 2. BTU (USA) ,Ersa (Germany) , SMT (germany) 3. Vitronics (USA) , Speedline (USA),Tamara (Japan) 4. Heller (USA), JT(China) This is how I would rate the main brand reflow's others may disagree. They all reflow , b
Electronics Forum | Sun Feb 05 03:54:06 EST 2017 | rezaee
Hi If I want to build this board :( http://wiki.friendlyarm.com/wiki/ima...-Schematic.pdf ) in large number, I like to know: 1-What should be the minimum level(number) of production? 2-How much it costs to buy the PCB product line for that purpose(Mu
Electronics Forum | Fri Feb 10 03:14:53 EST 2017 | soldertraining
Which is the best way to clean the PCB after soldering? Is it good enough with IPA (isopropyl) or with the Flux Remover spray? However, we use a lead free solder wire (3,5% flux inside the core) and after the soldering its a visible wet and surface g
Electronics Forum | Wed Mar 01 14:06:31 EST 2017 | sarason
You probably have database issues. The underlying format that was used on the Quad series is the old DBase from DOS days you could try running a tool like DB Viewer,DBF Doctor over your updated file to see that the format is still correct. Compare th
Electronics Forum | Wed Mar 15 09:53:58 EDT 2017 | rob
Hi Etimov, Understood that to us assembling parts that IPC is king, however it isn't neccesarily the bible for design engineers. We've had customers demand almost zero voiding, or had to use conductive epoxy to avoid it. For some of us solder joi
Electronics Forum | Mon Apr 17 10:21:21 EDT 2017 | dontfeedphils
So I'm starting up a conformal coating process from scratch (again, although it's been about 10 years) and I'm looking for the best option for verifying thickness. I plan on going the "coupon per setup" route which will encompass both our manual spr
Electronics Forum | Fri May 05 10:49:54 EDT 2017 | dontfeedphils
So I think I've given up a bit on the FR4 coupons due to complexity and having to custom order them every time we'd need a reorder. In the past I've used aluminum coupons, about the size of a regular business card. Some extensive googling hasn't tu
Electronics Forum | Mon May 01 12:32:50 EDT 2017 | emeto
Looks like you have bad wetting. I will do in this order as it is easier to troubleshoot starting with the machine and transitioning to the PCB: 1. First clean some bare PCBs really good and try again. 2. Check thermal profile 3. Check flux - amount
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