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
################################################################
|
