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US 6,205,054 B1Granted
Nonvolatile memory
AssigneeGlobal Alliance Inc.
InventorNobuo Inami
Life of this patent
Estimating the term…
Abstract
A nonvolatile memory includes paired memory elements each including a storage transistor having a control gate and a floating gate. Through a write operation, one of the storage transistors is brought into a depletion state and the other storage transistor is brought into an enhancement state. Subsequently, a connection transistor is operated in order to serially connect the paired memory elements. As result, a binary signal corresponding to the statuses of the paired storage transistors is outputted.
Claims9
A nonvolatile memory comprising:
- paired memory elements each including a storage transistor having a control gate and a floating gate;
- and
- connection means for serially connecting said paired memory elements during at least a readout operation,
- an output signal being output from a connection line which connects said paired memory elements via said connection means, wherein
- the state of each storage transistor is switchable between enhancement and depletion states through charging of electrons into the floating gate and discharge of electrons from the floating gate;
- and
- one storage transistor is brought into an enhancement state, and the other storage transistor is brought into a depletion state, through a write operation.
4 more elements
Dependencies are inferred from the claim text.