| 摘要 |
A single poly EPROM comprises a floating gate ( 10 ), a control gate ( 12 ), a source ( 16 ) and a drain ( 18 ). The control gate ( 12 ) is positioned laterally of a channel between the source ( 16 ) and the drain ( 18 ). The floating gate ( 10 ) is positioned above the channel and above the control gate ( 12 ). The single poly EPROM device further comprises an additional gate ( 40 ) above the floating gate ( 10 ) and a control. The control is connected to the additional gate ( 40 ) for controlling a voltage at the floating gate ( 10 ) in order to prevent the floating gate ( 10 ) from being unintentionally charged or discharged.
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