Read Microcontroller need to use Focus Ion Beam to make the necessary modification on the microcontroller, and hereby we would like to introduce these two steps separately, through inject the iodin steam can have a better corruption rate of read microcontroller. Reader can produce the metal layer windows on the bottom of microcontroller for visiting without damage the coherent structure. Through the injection of organic gas with platinic can create the new connection on the microcontroller read. use other chemical component like isulators can download the ion beam into the bottom metal of microcontroller and make connection with the surface metal when read microcontroller without get in touch with other cover layer. Focus ion beam can move on the surface of microcontroller with 0.1 micron preciseness regardless the microcontroller surface structure and evenness. Use the infrared line for imaging and can locate the transistor on the microcontroller from it back when read microcontroller.

After we made some necessary electrical connection and cut out on the microcontroller for read purpose, we need to do it’s the modification on the microcontroller circuit pattern when read it. As we all know, it is not necessary to have the information from databus internally of microcontroller read by using the microprobe technology. Sometimes, especially for the microcontroller itself, cut off the metal interconnection wire or break the control circuit when read microcontroller to seal off the security protection mechanism. Focus Ion Beam is very easy to re-connect the protection security states transmission wire to the ground or power supply layer when read microcontroller. Although microprobe can do the same work but it won’t work if the metal wire embedded very deeply.

Microcontroller read and modification at least need to find out the read point through the reverse engineering process which means the job can’t be done by a reader with less experience and well equipped facilities.