Electronics Forum | Mon Aug 03 20:10:52 EDT 1998 | Dave Kalen
| | | Recently at the Nepcon show I saw Panasonic KME placing 0201's, must say | | | with my olde eyes it was hard for me to even see the little buggers. Wondering if any of you are placing 0201's? what are the pros & cons, UPH, and what equipment
Electronics Forum | Wed Oct 17 14:52:25 EDT 2012 | rway
1) Is there something your design/pcb Engineer can do to lay the array out a little better for the wave (i.e. add substrates, board thickness)? 2)What do you mean by material movement? Single piece/continuous flow. 3) Shouldn't be too hard. You
Electronics Forum | Thu Oct 18 15:03:48 EDT 2012 | rway
2) Start with the PLC. What do the indicator lights tell you. Is your entry sensor working? Your PLC has status lights that should go on/off with the input/output conveyors. Can you be more specific about "not operational?" This is a broad stat
Electronics Forum | Fri Aug 07 01:02:51 EDT 1998 | zeek - just wanna to get a word in here
| | I am looking for advice or information from anyone about the possible reliability problems associated with epoxy on solder pads of discrete devices. Will the epoxy expand and lift over time, Will there be adverse reaction between the solder and t
Electronics Forum | Mon May 14 03:21:20 EDT 2001 | Eyal Duzy
Phil, In the considerations you make for choosing an AOI tool, you should check what a vendor delivers today and what will it be able to deliver in the future. As the role of AOI in the SMT production line evolves from "detection" to "prevention"
Electronics Forum | Tue Mar 25 10:31:05 EDT 2014 | sara_pcb
The boards are baked for 2 hours at 120 deg C Regards, R.Saravanan
Electronics Forum | Wed Mar 14 07:30:14 EDT 2007 | davef
So, you toss whatever is on the stencil every 8 hours. Correct? How long has it been on the stencil? * If that particular paste has been on the stencil for 8 hours, we'd agree to toss it too. * If paste has been on the stencil for less than 8 hour
Electronics Forum | Wed Mar 07 08:37:29 EST 2007 | davef
First, don't put solder paste in a wave solder pot, the 50% by volume of organics and volatiles will gas off in an astonishing amount of fume, leaving a dismaying mess of spent resin and molten plastic in your pot. Second, when you say, "Paste that
Electronics Forum | Mon May 21 11:14:06 EDT 2012 | joeherz
Polymide is like a sponge and absorbs moisture much faster than rigid substrates. Pre-bake your substrate for 2-4 hours at 125C and perform your soldering within 1 shift thereafter or seal in moisture barrier bags.
Electronics Forum | Thu Aug 17 02:39:30 EDT 2000 | Gonul Ozden
I'm looking for an information about cutting and drilling operations of PCB.Could you advise me to a souce to find out the tools,operation and test.Thanks for your help!
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