Ahf. Chou et al., Comprehensive study of a new self-convergent programming scheme for split gate flash memory, JPN J A P 1, 39(4B), 2000, pp. 2219-2222
A new sell-convergent constant current programming achieved by a ramp-up so
urce voltage is extensively studied in this work. Based on the results of a
constant programming current and self-convergent characteristics, several
methods are presented to achieve accurate control. of multiple programmed s
tates, Both efficient programming speed and excellent reliability are demon
strated. The proposed programming technique is considered to be a promising
candidate for high-speed, high-density, and low-power multilevel split gat
e flash memory.