As these "physics" or "analog" details made a lot of troubles, the manufacturers of EEPROM/FLASH try to hide as much details as possible - at a cost of increased circuit complexity (but that is of much less issue than it was in the best times of EPROMs ):

- programming (high) voltage is generated (and controlled) internally
- programmig/erasure timig is often controlled internally
- "homogenizing" pre-programming before erasing is often performed internally

The result is easier use and more consistent operation over wide supply voltages.

However, the "physics", resulting as wear-, EMC-, high temperature-induced problems, is still there in the background...

Jan Waclawek