Cypress Semiconductor STK16C88 Manual do Utilizador descarregar pdf (Página 48)

12.02.07

48

Simtek Confidential

SONOS Technology

SONOS Memories (Silicon-Oxide-Nitride-Oxide-Silicon)

Poly Gate

Blocking Oxide

Nitride Trapping Layer

Tunnel Oxide

SONOS Transistor

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Charge is stored in nitride layer which acts like floating gate

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Simple technology (topography, etching, ...)

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Easy to integrate in base-line CMOS processes.

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Direct tunneling (FN): lower program / erase voltages

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