RE: Looking For Anechoic Foam

1998-03-16 Thread Brumbaugh, David
Jeff You didn't describe your lab, but if you have flourescent lighting in your lab (I assume this is a shielded enclosure?) all the foam and tiles in the world won't help. Use incandescent lighting instead. As for foam absorber suppliers, here are a few: Emerson & Cuming 617-828-3300 Cuming C

Singapore, Poland and Australia

1998-03-16 Thread Kamran Mohajer
Can anyone assist me in letting me know what are the requirements for safety and EMC in the subject countries for a commercial ITE (workstations, servers). I have seen some e-mail in this forum that are more specific for consumer type products shipped in to the subject countries but nothing specif

RE: Ref SEMI E33-94

1998-03-16 Thread Werlwas, Mark
S2 (Safety Guidelines for Semiconductor Manufacturing Equipment) is being taken quite seriously by many buyers of semiconductor equipment. The EMC related issues in S2 primarily concern exposure of personnel to RF fields - not emissions which would interfere with other equipment. Mark Werlwas Lam

Re: Ref SEMI E33-94 and SEMI S2

1998-03-16 Thread Tin Bear
Brian, Regarding your question of how much acceptance SEMI S2-93 is being taken by the semiconductor industry, I believe that SEMI (the semiconductor industry's trade organization), at http://www.semi.org, would be most qualified to respond. >From personal observation, SEMI S2-93 is quite well ac

Re: Lokking for anechoic foam

1998-03-16 Thread Tony J. O'Hara
Hi Jeff If you're having a problem with ambient noise, you need a shielded room first! A steel shielded room will isolate your EUT to about -100dB from 200kHz to >20GHz. The foam or ferrite is then added to prevent internal reflections/standing waves. But foam and or ferrite will only absorber RF

Looking For Anechoic Foam

1998-03-16 Thread Bailey, Jeff
Hello group, I am in the process of setting up a lab for doing pre-compliance EMI/RFI scans on our products, I am having a problem with ambient noise below 250MHz, the noise is thick and is greater than my limit lines. I am trying to come up with a solution more cost effective than ferrite tile

Ref SEMI E33-94

1998-03-16 Thread Brian Harlowe
Regarding Jeff Collin and Tin Bear's comments on SEMI E33-94 I can confirm that CE marking is acceptible. We supplied some equipment to Intel and had no difficulty whatsoever. In passing SEMI E33-94 is part of a much larger specification SEMI S2-93 can anyone in the group advise me how much acc