One aspect of the present invention relates to a SONOS type non-volatile semiconductor memory device having improved erase speed, the device containing bitlines extending in a first direction; wordlines extending in a second direction, the wordlines comprising functioning wordlines and at least one dummy...http://www.google.fr/patents/US6707078?utm_source=gb-gplus-shareBrevet US6707078 - Dummy wordline for erase and bitline leakage
