MCU Extraction Protection

MCU Extraction Protection has been widely discussed in the MCU extraction industry.

Just like the EPROM, most of the floating gate memorizer MCUs are sensitive to the ultra-violet radiation extraction. At the same time, MCU designer will have more freedom to choose the different ways to prevent the MCU extraction. EEPROM and FLASH memorizers can change their status in the same time, and the simplest way is to indicate the warning by use random unit’s wipe out status, and a programmed status to shield the security features of MCU extraction. This method has few modifications on the logic control. And it has been widely used in most of the flash MCU memorizer to prevent the extraction. And there are five ways of ultra-violet radiation MCU extraction to affect the floating gate units.

Change the status of MCU programmed to wipe out status when extract MCU, if the erase status is related to shielding security features will affect the security fuse when extract MCU. Change the status of MCU memorizer from erased to programmed, if the programmed status is related to shielding security features will affect the security fuse when extract MCU. Change the status of MCU from programmed or erased to intermediate status when extract MCU, if the unit control circuit’s reference voltage above the power supply voltage will probably affect the security features. Makes the transistor threshold voltage value in the memorizer of MCU swifting to the range of operating electrical level, it will lock the unit when extract MCU and bring benefit to ultraviolet radiation MCU extraction and cracker can locate the security fuse. Transistors threshold value in the memorizer unit hasn’t floating out to the variation level.

Circuit Engineering Company Limited continues to be recognized as the Southern China Leader in Services for IC Attack, MCU Crack, Chip Extract, Microcontroller Unlock service. With the advancement of today’s modern circuit board technology, it is more important than ever to have specialists available to help you at a moment’s notice. Our engineering and commercial teams collectively have a vast amount of electronic experience covering field include Consumer Electronics, Industrial Automation Electronics, Wireless Communication Electronics., etc. For more information please contact us through email.


Tags: ,,,,,,,,,