Delete comment from: Ken Shirriff's blog

DHess said...

An alternative to fuses were "anti-fuses" made from essentially base-emitter junctions. But when a high current is applied, they go from open to short. "Zener zapping" used to trim analog parts is the same thing.

Jul 31, 2019, 8:56:30 AM

Posted to Looking inside a 1970s PROM chip that stores data in microscopic fuses