Big flaw found in transistor noise theory E ngineers at the U.S. National Institute of Standards and Technology (NIST) say that the basic theory explaining the origin of a certain type of noise produced by very small transistors is totally wrong. Known as random telegraph noise, this aberrant signal is becoming a problem for static RAM and flash memory, and it will also become a threat to future low-power logic circuits as their dimensions continue to shrink and the voltage at which they operate decreases. Without a theory,