Electronics Forum | Fri Mar 24 13:02:53 EST 2000 | Ashok Dhawan
Two questions on ESD: 1. What is recommended method ( Air ionizer , grounding strip etc. ) for a board prep ? We Kapton Tape for masking pads or not to be soldered areas. or Is there a wet mask recommended for masking boards campatible with NC Sold
Electronics Forum | Wed Nov 10 02:20:07 EST 1999 | Marc
The padsfor large heat sinks are being designed on our boards with large copper ground planes surrounding them by our engineers. I am having great difficulty keeping the reflow temperature below 230 degrees in order for the temperature of the copper
Electronics Forum | Thu Aug 12 10:49:22 EDT 1999 | Ray Hare
I am currently involved with designing a pcb which will use 225 pin bga,s The problem with this design is that the components will dissipate a lot of heat and the design we have come up with is use the middle 6 or 7 rows of balls as the grounding,th
Electronics Forum | Thu Apr 25 18:32:25 EDT 2002 | Shawn
What he is talking about when he said "foil" is the top and bottom side of the board has a layer that is like a ground plane with no solder resist covering it. It is etched out around the pads that no not need a connection and have a small bride or t
Electronics Forum | Wed Apr 07 11:21:26 EDT 2004 | stefwitt
Hi Dilbert, it is a step up transformer from 3 phase 208 to 3 phase 380. Each machine does not draw more than 3 Amps per phase. However, circuit breakers are rated at 15 Amps. The transformer has three power outlets, each one has a Perilex (European)
Electronics Forum | Sun Apr 11 20:03:46 EDT 2004 | Tom B.
You should add a Capacitor Discharge statement in ICT test Software. This could be done by selecting the nodes and have statements to connect relays to ground. Could be possible that the Selective Soldering system is the cause, as problems is now s
Electronics Forum | Mon Oct 10 08:53:54 EDT 2005 | rsmith@z-mar.com
The most important thing you can do is to maintain the same electrical potential between the ESD-S product, the operator and the worksurface. This is typically achieved through a grounded dissipative worksurface and an operator grounded via a wrist s
Electronics Forum | Fri Dec 16 08:57:30 EST 2005 | chunks
Why does everyone tell me smocks will prevent ESD. They're not grounded, so how can they bleed or prevent ESD? They may not cause any ESD, but they sure don't come close to a heel strap or ESD shoes. OK, maybe from a "management" standpoint it mak
Electronics Forum | Thu Dec 29 05:56:37 EST 2005 | bobpan
Dont quote me on this because its been a while but i believe thats a grounding issue on the quad-align card itself. The card is located in the rear right bottom of the machine. Try adding a ground wire to the cage that the card is mounted inside. Als
Electronics Forum | Fri Feb 24 14:10:16 EST 2006 | rsmith@z-mar.com
My company is an ESD firm. I have tested many different floors and sell ESD flooring and other products. With that said, here are my thoughts. Unsealed concrete is porous and tests in the 10 6th-8th range here in the southeast where we have decent hu
