Hi Everyone, Just a thought on ESD testing. The actual failure level should always be determined, not just that the test was not passed. For instance, suppose you are trying for 4 kV contact mode but fail and the failure happens at 1.5 kV. You try something, but unit still fails. However, the failure level increased to 3 kV. This is very important. Either more of the same technique should be tried or you have peeled one layer of the ESD onion and now another mechanism controls the response. I recently had a product that had three distinct mechanisms and all had to be fixed simultaneously for the product to work. A solution would never happen if one tried experiments one at a time and just looking at the pass-fail state on a product like this.
Doug On 1/6/10 7:06 AM, John Woodgate wrote: > In message > <769907F0D19EFA45BD6F04FC6E896D6D220970D160@GVW0538EXC.americas.hpqcorp.n > et>, dated Wed, 6 Jan 2010, "Conway, Patrick R (bNB Houston)" > <[email protected]> writes: > >> 1- Keeping all other parameters the same, swap the mouse, >> re-test, then swap the PC, and re-test. >> >> a. use a completely different mouse type and completely >> different PC. >> >> b. Try to determine if the problem follows the mouse or follows >> the PC. > > If totally confused, change the test gear. (;-) -- ___ _ Doug Smith \ / ) P.O. Box 1457 ========= Los Gatos, CA 95031-1457 _ / \ / \ _ TEL/FAX: 408-356-4186/358-3799 / /\ \ ] / /\ \ Mobile: 408-858-4528 | q-----( ) | o | Email: [email protected] \ _ / ] \ _ / Website: http://www.dsmith.org - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <[email protected]> All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc Graphics (in well-used formats), large files, etc. can be posted to that URL. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher: <[email protected]> David Heald: <[email protected]>
