Lou Hart
A few comments concerning anti-static tape.
1. It depends on where the anti-static tape is being used versus where the
static generating tape is being used. Also, it depends upon what capacity
the tapes are being used in. In a former life, anti-static tape was allowed
in the shop while static generating tape was strictly prohibited. You still
would have to follow good ESD practices when using anti-static tape.
2. It also depends upon the sensitivity of the components you are trying to
protect. For example, for class "0" devices, the voltage range is < 125
volts. For class 1 devices, the voltage range is 125 volts to 250 volts. For
class 2 devices, the voltage range is 250 volts to 500 volts. For class 3
devices, the voltage range is 500 volts to 1000 volts. Depending upon the
humidity, I've measured voltage from scotch tape above 1000 volts.
3. If you are going to replace anti-static tape with static generating tape,
you may want to consider using an ionizer when using the tape. An ionizer
would neutralize the charges generated by the dispensing of the static
generating tape.
If there are any questions, please feel free to contact me as soon as
possible.
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 Lou Hart
Sent: Tuesday, May 30, 2000 1:56 PM
To: [log in to unmask]
Subject: [TN] antistatic tape
TechNetters,
I'm reviewing and revising our ESD control procedure. The last person to do
this put in a statement that we would use only anitstatic tape in production
areas. However, we do have static generating tape commonly used in
production areas.
I'm asking myself and colleagues, do we want to keep that statement about
antistatic tape in our procedure? If so, we need to start using such tape.
Is antistatic tape a good idea, or just a cosmetic feature? Thanks for any
comments. Lou Hart 412-858-6184, QA Compunetix
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