A rare type of ROM. Voltage levels are set by firing a laser at traces to set/clear bits.
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| Original caption: “Laser ROM in Dallas DS1961S iButton chip. Information can be read optically and altered with a laser cutter.” Copyright 2005 Sergei P. Skorobogatov, used with permission |
References
- “Semi-invasive attacks - A new approach to hardware security analysis.” Sergei P. Skorobogatov.
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