UV-BLOCKING LAYER FOR REDUCING UV-INDUCED CHARGING OF SONOS DUAL-BIT FLASH MEMORY DEVICES IN BEOL PROCESSING

摘要

A method of protecting a SONOS flash memory cell (24) from UV-induced charging, including fabricating a SONOS flash memory cell (24) in a semiconductor device (10, 50); and depositing over the SONOS flash memory cell (24) at least one UV-protective layer (38, 46, 48 or 52), the UV-protective layer including a substantially UV-opaque material. A SONOS flash memory device (10, 50), including a SONOS flash memory cell (24); and at least one UV-protective layer (38, 46, 48 or 52), in which the UV-protective layer comprises a substantially UV-opaque material, is provided.