Hybrid MEMs-floating gate device
AssigneesTower Semiconductor Ltd., Newport Fab, LLC
InventorsYakov Roizin, Rassul Karabalin, David J. Howard
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AssigneesTower Semiconductor Ltd., Newport Fab, LLC
InventorsYakov Roizin, Rassul Karabalin, David J. Howard
Estimating the term…
A hybrid Micro-Electro-Mechanical-System-Floating-Gate (MEMS-FG) device includes an electrically isolated non-volatile memory (floating) structure including a polysilicon gate structure connected by a metal via to a fixed electrode, where the polysilicon gate structure also forms the gate of an NVM cell, and the fixed electrode forms part of a lever-type or membrane-type ohmic MEMS switch. An initial charge is written before each sensing operation onto the floating structure by way of the NVM cell. During each sensing operation, sensor data is effectively written directly onto the NVM cell by way of either maintaining or discharging the initial charge, where discharge of the initial charge occurs when a predetermined event (e.g., contact by a fingerprint ridge) produces an actuating force that biases a movable electrode of the MEMS switch against the fixed electrode. The sensor data is read out from the NVM cell after each sensing operation.
An integrated circuit (IC) including a metallization layer formed over a semiconductor substrate, the IC including at least one hybrid Micro-Electro-Mechanical-System-Floating-Gate (MEMS-FG) device comprising:
Dependencies are inferred from the claim text.