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February 2000

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Subject:
From:
Lee Whiteman <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Wed, 23 Feb 2000 08:38:46 -0500
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If you are going to use a non static dissipative brush, we strongly
recommend that your operators be grounded to earth ground and that an
ionizer be present and in use at the workstation. Suggest you get a copy of
ANSI / EIA-625: Requirements for Handling Electrostatic Discharge Sensitive
(ESDS) Devices for your review. We also recommend that you know the
sensitivity of your devices. For example, Class 0 devices are sensitive to
200 Volts or less.

Bob Lawler
Senior Design Engineer
ACI / EMPF
Telephone: (610) 362-1200; Ext. 222
FAX: (610) 362-1290
E-Mail: [log in to unmask]

Lee Whiteman
Senior Manufacturing Engineer
ACI / EMPF
Telephone: (610) 362-1200; Ext. 208
FAX: (610) 362-1290
E-Mail: [log in to unmask]

 -----Original Message-----
 From: TechNet [mailto:[log in to unmask]]On Behalf Of Michael D. Doty
 Sent: Tuesday, February 22, 2000 3:25 PM
 To: [log in to unmask]
 Subject: Re: [TN] Anti static brushes


      These are commonly refered to as solder brushes. They are putting on
      the flux paste prior to sweating pipes.

      Mike Doty



 ______________________________ Reply Separator
 _________________________________
 Subject: Re: [TN] Anti static brushes
 Author:  "Blomberg; Rainer (FL51)" <[log in to unmask]> at
 smtplink-hadco
 Date:    2/22/00 3:09 PM


 Chris,

 We use very inexpensive metal-handled acid brushes with bristles
 cut down to
 approx. 3/8 inch.  We have been using them for years.  Nearly any
 production
 tool supply house has them.

 R. G. Blomberg
 Honeywell - Space Systems
 Staff Production Engineer


 -----Original Message-----
 From: Christopher Murphy [mailto:[log in to unmask]]
 Sent: Tuesday, February 22, 2000 2:51 PM
 To: [log in to unmask]
 Subject: [TN] Anti static brushes


 Dear All,

 we currently use static dissipative brushes for cleaning wasted chips
 off our placement machine feeder bases, and we also use them with a
 solvent for cleaning localised areas of boards when rework has been
 carried out.

 The problem is that they are very expensive, so does anyone know of any
 sources of reasonably inexpensive brushes?

 I have seen other companies use wooden handled paint brushes with the
 bristles cut down for these purposes - I assume this is not a good thing
 due to the bristles not being ESD safe ?

 Thanks in advance for any replies.

 Chris Murphy,
 Tait Electronics,
 New Zealand

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