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Coleco
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 Posted: Fri Sep 06, 2019 4:17 pm Post subject: Why do many old chips have a piece of tape on thier side? |
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I see this piece of tape on many old Intel chips:
i.ebayimg.com/images/g/DwoAAOSwm79cZa-M/s-l1600.jpg
What is it and why is it there?
Is it just a pillow to prevent the chips from touching each other when they are in the tube for shipping? Or there is other reason for it?
i.ebayimg.com/images/g/KHcAAOSwRvdZZkn8/s-l1600.jpg
Thanks for any info on this. |
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CPUShack
Joined: 16 Jun 2003
Posts: 34259
Location: State of Jefferson, USA
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| Posted: Fri Sep 06, 2019 4:28 pm Post subject: Re: Why do many old chips have a piece of tape on thier side |
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| Coleco wrote: |
Is it just a pillow to prevent the chips from touching each other when they are in the tube for shipping? Or there is other reason for it?
Thanks for any info on this. |
Thats exactly why its there
help prevent ceramic chips from breaking in the tube (seen many many damaged ones from that)
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DM8800er
Joined: 28 Jun 2012
Posts: 279
Location: California
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| Posted: Sat Sep 07, 2019 2:45 pm Post subject: tape on chips, various reasons |
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good question, Coleco!
I had wondered about that
btw, tape on TOP of chips is most-often covering the window of an eprom [eraseable programmable read-only-memory] to keep UV light from erasing the info written there
other tape on top can carry info the user needed
sometimes over the manufacturer/model info
below is a screen shot of a NASA GSFC (Goddard Space Flight Center) board where almost all the chips have tape on them identifying specific tasks for NASA |
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