Extract Microcontroller Source Code from program memory and data memory, reset the MCU Protection by attack MCU security fuse bit;

Extract microprocessor’s embedded memory can use the simulated faulty injection to break MCU firmware. As we all confess, focus ion beam can use to modify the status of SRAM unit.

And this process can also be stimulated by DIODE-2D software. Model reveal that the main cause of reversor status modification affected by the laser is locked effect on the parasite circuit result from radiation.

The status of reversor will only change when the required laser strength lower than the internal parasite structure threshold value. It is the best situation to turn around the laser focusing point when approaching the transistor channel area, but the locked effect can’t be eliminated, since the ion pair generated from laser will fill the reversor swiftly and cause the increase of currency in all of the internal PN conjunctions.