Invention Grant
US08797820B2 Soft breakdown mode, low voltage, low power antifuse-based non-volatile memory cell 有权
软击穿模式,低电压,低功耗基于反熔丝的非易失性存储单元

Soft breakdown mode, low voltage, low power antifuse-based non-volatile memory cell
Abstract:
A non-volatile memory cell using two transistors, a bit select and a sense device and an antifuse device. The antifuse device is implemented with a field-effect transistor operated to behave like an antifuse when the cell is selected and a modest programming voltage under 5.5 volts and a current under 5-μA is applied. Only a soft breakdown is needed in the thin gate oxide because a local sense transistor is used during read operations to detect the programming and amplify it for column sense amplifiers. Reading also only requires low voltages of about one volt.
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