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Vlasta
Joined: 15 May 2012
Posts: 2565
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 Posted: Tue Nov 13, 2012 10:57 am Post subject: 4" wafer - no date - marked M4282 and some logo |
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Can anyone shed any light on this one?
I think the mark might be a logo that has been etched away as it is in the same place and looks the same on each die.
Here is the die shot and other shots
Wafer "looks" vintage - each die is approx 7mm x 7mm
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best rgds.
Steve |
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Vlasta
Joined: 15 May 2012
Posts: 2565
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| Posted: Tue Nov 27, 2012 8:16 pm Post subject: |
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oh - forgot to say it is a 3" wafer
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best rgds.
Steve |
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