A method and apparatus for erase operations of a flash memory block. In one embodiment, a method comprises erasing a predetermined percent of rows in a memory block, analyzing a number of erase pulses used to erase the predetermined percent and calculating an acceptable number of additional erase pulses...http://www.google.de/patents/US6618293?utm_source=gb-gplus-sharePatent US6618293 - Non-volatile memory with block erase
