Electronics Forum: ground and planes (Page 10 of 28)

Desiccants and pcb finish degradation?

Electronics Forum | Mon May 21 17:32:23 EDT 2001 | davef

I said: "Our electronic circuit board fabricators seal the boards in moisture barrier bags [MBB]. We discontinued the use of desiccant bags in these MBB because of concerns about the desiccant releasing materials that would affect the solderability

J-STD-002 and -003 solderability testing...

Electronics Forum | Sat Jun 30 11:03:29 EDT 2001 | davef

Nice to have you back on SMTnet. Some of the newer folk have missed-out on the solid contributions you�ve made to the Forum. The chicken wire cleaning basket was a classic!!! [It�s a shame that the folk at SMTnet can�t recover those files.] We bu

bone growth stimulation system and ESD

Electronics Forum | Tue Oct 24 16:30:18 EDT 2006 | jax

Without getting into an electrical field promoting bone growth... As long as he is grounded through heal straps and/or wrist straps, it should be fine. Although I imagine being grounded would neutralize the "Bone Grower"

ROGER 4003C bounding to Aluminum

Electronics Forum | Thu Oct 21 02:31:27 EDT 2010 | rok

OGER 4003C bounding to Aluminum I am hoping someone might have the solution to my problem I have the following PCB: RO4003 Thickness: .2mm Layer: top single/ bottom ground plane Finish: silver top and bottom .2um Size: 3mmx6mm I need to bound/groun

Wave Soldering Upflow

Electronics Forum | Tue Aug 05 17:19:55 EDT 2003 | csimfgeng

Another variable is whether the ground pads have proper thermal reliefs. If the pad has solid ground plane around the perimeter, the heat being applied will quickly dissipate to the surrounding metal. A proper relief of the pad will prevent the hea

layer 2 groundplane disconnects after hand solder

Electronics Forum | Fri Apr 10 13:25:08 EDT 2009 | jefflkupkt

Layer 2 is the ground plane layer of a 4 layer board. After installing a 2.5 mm DC power jack and 0.1 center SIP header by hand, the ground pin disconnects and causes an open. My board supplier said they passed Electrical Test. Prepreg was within

Multilayer PCB X-ray inspection

Electronics Forum | Thu Apr 08 02:04:53 EDT 2010 | dilogic

Having no real experience with x-ray inspection, this answer helped a lot. What I actually want is to check top 3 layers and it should be pretty straightforward, as the second layer from the top should be almost empty and the third one should be a gr

The truth about lead-free and environment

Electronics Forum | Fri Mar 24 15:40:23 EST 2006 | Gilligan

Novemer 13, 2001, minutes from the JG-PP Lead-Free Solder project: http://www.jgpp.com/projects/lead_free_soldering/minutes/01novminutes.pdf It seems to me, that although everything was discussed before hand, it wound up being the "Let's do it and

bone growth stimulation system and ESD

Electronics Forum | Tue Oct 24 13:52:06 EDT 2006 | ehess

we have an operator who is being prescribed to wear a bone growth stimulation system. Does anyone know if tis is ESD safe? Can he wear that on the production floor as long as he's grounded and have it stored inside his smock?

floor and air conditioning, shop floor requirements

Electronics Forum | Tue May 07 07:31:15 EDT 2013 | davef

Pavel You're correct that you should consider the point loading of your placement, wave and other machines. I've put shops above the ground floor of buildings. Equipment suppliers are the best source of information about these requirements. BR, dav


ground and planes searches for Companies, Equipment, Machines, Suppliers & Information

Blackfox IPC Training & Certification

High Precision Fluid Dispensers
Best SMT Reflow Oven

Nozzles, Feeders, Spare Parts - Siemens, Fuji, Juki, Yamaha, etc...
2024 Eptac IPC Certification Training Schedule

Software for SMT placement & AOI - Free Download.
Hot selling SMT spare parts and professional SMT machine solutions

Training online, at your facility, or at one of our worldwide training centers"
PCB separator

Training online, at your facility, or at one of our worldwide training centers"