Redundant non-volatile memory cell
AssigneeImpinj, Inc.
InventorsYanjun Ma, William Colleran, Vadim Gutnik
Life of this patent
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Abstract
Two floating gate devices are arranged in a redundant configuration in a non-volatile memory (NVM) such that stress induced leakage current (SILC) or other failures do not result in a complete loss of memory storage. The redundant NVM may be arranged as a series configuration, a parallel configuration, a single-ended device, a differential device, a simple logic circuit function, a complex logic circuit function, and/or as part of an RFID tag system.
Claims38
A non-volatile memory (NVM) circuit, comprising:
- a first field effect transistor (FET) circuit of a first type, wherein the first FET circuit includes a first floating gate terminal;
- and
- a second FET circuit of the first type, wherein the first FET circuit is arranged in a redundant circuit configuration with respect to the second FET circuit, and wherein the second FET circuit includes a second floating gate terminal.
A non-volatile memory (NVM) circuit, comprising:
- a first field effect transistor (FET) circuit of a first type, wherein the first FET circuit includes a first floating gate terminal;
- a second FET circuit of the first type, wherein the second FET circuit includes a second floating gate terminal;
- and
- a redundant configuration means for configuring the first FET circuit in a redundant circuit configuration with respect to the second FET circuit.
A radio frequency identification (RFID) tag comprising:
- an antenna means;
- and
- an RF tag electronics means, wherein the RF tag electronics means comprises a redundant non-volatile memory means.
A radio frequency identification (RFID) tag that receives a wave, the RFID tag comprising:
- an antenna that is arranged to receive the wave and provide a signal;
- a processing circuit that includes a redundant non-volatile memory;
- and
- a signal routing circuit that is arranged to couple the signal to the processing circuit.
Dependencies are inferred from the claim text.