Peter , could you stress the difference between conductive/grounded and dissipative ; conductive regime being great in explosive manufacturing factories can be deadly in electronics , especially the power segments of assembly and test . Too often I've seen really and truly personnel grounded without slightest idea of principles and danger involved . Thanks paul >---------- >From: Peter Mariani[SMTP:[log in to unmask]] >Sent: Tuesday, 31 March 1998 10:23 >To: [log in to unmask] >Subject: Re: [TN] ESD > >I agree with Mr. Hamilton but it not always pratical to make everything >conductive due to availability, cost or design requirements. PCB boards and >laminate for example are by design not conductive in many areas or in most >stages of manufacture. Grounding does not work unless the grounded item is >conductive. > >Ionization is a pratical cost effective tool to add to to the ESD tool box >along with training of the operators. To learn more about ESD and >ionization visit http://www.electrostatics.com. > > > >At 04:58 PM 30-03-98 -0700, you wrote: >>Fred, >> >>I am not clear from your message and I don't think the importance was >>made strong enough in the answers I have seen so far. >> >>EVERYTHING MUST BE GROUNDED / CONDUCTIVE!! One loose cannon so to speak >>can do all the harm. The tube, person, bag, table top, pop rivet gun, >>rivet supply container, ......you get the picture, all of it must be >>addressed for ESD. And don't forget the air. Then, after mounting, don't >>forget the device is now part of a PWBA. How is the PWBA handled???? >>etc., etc., etc. >> >>And speaking from experience, it is such fun to go after, because it can >>be so elusive. You can also get REALLY carried away in the protection >>arena. However, the product may need it, and eventually you may be able >>to back off the ESD activities once you better define each areas' >>vulnerability. >> >>It may be worth it to get a specialist in to help you out. >> >>Best of luck to you, and I hope I have helped more than I have scared >>you! >> >>Richard Hamilton >>Clemar Mfg. / Rain Bird >>[log in to unmask] >> >>> -----Original Message----- >>> From: Fred Pescitelli [SMTP:[log in to unmask]] >>> Sent: Monday, March 30, 1998 2:06 PM >>> To: [log in to unmask] >>> Subject: [TN] ESD >>> >>> All, >>> We are having ESD problems with a particular FET, and are trying to >>> track >>> the problem down in our process. What is the proper procedure for >>> transferring parts from a tube to an ESD bag? We are also using blind >>> rivets to hold them down to a heatsink, can we be causing a problem >>> there? >>> >>> Fred Pescitelli >>> Phoenix Designs >>> 1285 Turner Rd. >>> Lilburn, GA 30047 >>> >>> ################################################################ >>> TechNet E-Mail Forum provided as a free service by IPC using LISTSERV >>> 1.8c >>> ################################################################ >>> To subscribe/unsubscribe, send a message to [log in to unmask] with >>> following text in the body: >>> To subscribe: SUBSCRIBE TechNet <your full name> >>> To unsubscribe: SIGNOFF TechNet >>> ################################################################ >>> Please visit IPC web site (http://jefry.ipc.org/forum.htm) for >>> additional information. >>> For the technical support contact Dmitriy Sklyar at [log in to unmask] or >>> 847-509-9700 ext.311 >>> ################################################################ >> >>################################################################ >>TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c >>################################################################ >>To subscribe/unsubscribe, send a message to [log in to unmask] with >following text in the body: >>To subscribe: SUBSCRIBE TechNet <your full name> >>To unsubscribe: SIGNOFF TechNet >>################################################################ >>Please visit IPC web site (http://jefry.ipc.org/forum.htm) for additional >information. >>For the technical support contact Dmitriy Sklyar at [log in to unmask] or >847-509-9700 ext.311 >>################################################################ >> > > >Peter Mariani > >Ph. 215-513-0850 >Fx. 215-513-0855 >mailto:[log in to unmask] > >Visit http://www.electrostatics.com >to learn more about static electricity > >################################################################ >TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c >################################################################ >To subscribe/unsubscribe, send a message to [log in to unmask] with following >text in the body: >To subscribe: SUBSCRIBE TechNet <your full name> >To unsubscribe: SIGNOFF TechNet >################################################################ >Please visit IPC web site (http://jefry.ipc.org/forum.htm) for additional >information. >For the technical support contact Dmitriy Sklyar at [log in to unmask] or >847-509-9700 ext.311 >################################################################ > > ################################################################ TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c ################################################################ To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: To subscribe: SUBSCRIBE TechNet <your full name> To unsubscribe: SIGNOFF TechNet ################################################################ Please visit IPC web site (http://jefry.ipc.org/forum.htm) for additional information. For the technical support contact Dmitriy Sklyar at [log in to unmask] or 847-509-9700 ext.311 ################################################################