Fuses aren't blown with a laser, it's purely electrical. You apply a sufficiently high voltage to some port on the part from a source that can drive a high enou

Fuses aren't blown with a laser, it's purely electrical. You apply a sufficiently high voltage to some port on the part from a source that can drive a high enough current and then tell the digital block of the chip which address to fuse and if you want it high or low. Repeat for the entire fuse bank and you're done. https://en.wikipedia.org/wiki/Efuse https://en.wikipedia.org/wiki/Efuse