Patent ID: 7187030
Filing Date: 2007-03-06
Classification: G11C,H01L

Abstract:
1. A silicon oxide nitride oxide silicon (SONOS) memory device connected to a bit line and a word line, comprising: a substrate having first and second electrodes formed therein, at least one of the first and second electrodes electrically connected to the bit line; a tunnel oxide layer on the substrate; a nitride film on the tunnel oxide layer; and a gate electrode on the nitride film and electrically connected to the word line; wherein data is stored in the SONOS memory device by trapping charge carriers of a first sign in the nitride film and data is erased from the SONOS memory device by injecting charge carriers of a second sign, opposite the first sign, into the nitride film across the tunnel oxide layer, wherein the charge carriers of the second sign are generated by an electric field formed between at least one of the first and second electrodes and at least one of the nitride film and the bit line.