Electronics Forum: ground and planes (Page 5 of 28)

ESD Smocks and chairs

Electronics Forum | Tue Jun 05 20:36:01 EDT 2007 | rfrog

LarryP, ESD smocks in combination with a wrist strap provide a path to ground for any charge potential. An operator wearing a smock while grounded will provide a path to ground for the chair. With an ESD chair you can have antistatic or static

Granite Surface and ESD

Electronics Forum | Thu Mar 31 23:14:18 EST 2005 | Steve

Russ if your asking me if covering the surface of the granite defeats the purpose then I'm lost. An ionizer is a very good suggestion but they are not inexpensive. If the table is grounded and the metal bars are on a grounded mat, laminate etc. then

Wave and Press-Fit fixtures

Electronics Forum | Mon Nov 26 12:00:20 EST 2001 | peterson

Hi everyone, I am looking for a reliable company (preferrably on the west coast) that can make Wave Solder and Press-Fit fixtures for our back-plane division. I need a reliable source that can take our data and produce quality fixtures in a 5-7 day

Thermal Pads Soldering Worry, can anybody help?

Electronics Forum | Thu Jul 20 23:41:55 EDT 2017 | heros_electronics

Below is an email that I copy and pasted from my customer's engineer about his concerns with the issue of the chips not reflowing (which is why I was asking about X-ray the chips to make sure they reflowed): Can you let me know your thoughts on his

ESD flooring and footwear

Electronics Forum | Wed Oct 11 13:39:49 EDT 2006 | russ

Dissipative flooring is not really "conductive" so to speak. what it does is (supposedly)dissipate charge as it accumulates on the surface of mat. Does this mat have a ground lug on it? Responses are correct, unless you can get conductivity between

ESD Smocks and chairs

Electronics Forum | Wed Jun 06 09:28:35 EDT 2007 | larryp

Thanks for the help but I do have another question. First I guess that just the touching of the smock to the skin is anough to give the charge on the person a path to the smock. OK I can accept that if button up at the breast and sleeves. Now I kno

Stencil Design Question

Electronics Forum | Wed Feb 13 19:32:02 EST 2008 | daxman

Greetings everyone. We are currently doing some experimentation with solder paste printing over ground planes. In this application, the entire perimeter of the PCB is a ground plane. It's about 4mm wide and wraps around the whole PCB; There is no so

RoHS Board Delamination

Electronics Forum | Tue Oct 31 09:43:06 EST 2006 | SWAG

Yes, this board is approx. 3" x 17" x .062"T with large areas of ground planes. However, the delam. does not seem to be confined to the plane. We also see it around component pads and fiducials. Generally speaking, it could be said that the first

Aluminium capacitor rotation after soldering

Electronics Forum | Wed Apr 22 21:21:06 EDT 2015 | comatose

We see this from time to time. Usually, one of the leads of an electrolytic is attached to a ground plane, and the other to a trace. The ground plane acts as a big heat sink and reflows significantly later than the trace. If you have glue in your li

Soldering on a Ground Plane

Electronics Forum | Thu Feb 10 09:08:21 EST 2000 | C.K.

We've got this hard-to-Wave-solder board where all of the SMD's are on a ground plane - in fact the entire bottom-side is a ground plane. Our designers have incorporated thermal relief on some of the pads, but for reasons unknown to us, they don't h


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