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US 2024/0008271 A1Published application
Solid-state optical storage device
AssigneeGenXComm, Inc.
InventorsBrian Mattis, Taran Huffman, Bryan Woo, Thien-An Ngoc Nguyen
Life of this patent
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Abstract
A semiconductor device includes a floating gate that can be charged in a nonvolatile manner. The floating gate is also structured as an optical waveguide, and may be optically coupled to a photonic circuit, such as an interferometer.
Claims20
A nonvolatile memory comprising:
- an array of nonvolatile charge storage cells, each nonvolatile charge storage cell comprising:
- a source gate;
- a control gate;
- a silicon substrate defining:
- a first wing;
- a second wing;
- and
- a first waveguide between the first wing and the second wing, the first waveguide configured to accumulate and retain electrical charge supplied by the source gate in response to a voltage applied to the control gate, the first waveguide defining:
- an optical input;
- and
- an optical output;
- and
- a second waveguide optically coupled to the first waveguide and conductively decoupled from the silicon substrate, the source gate, and the control gate.
10 more elements
A nonvolatile memory for a photonic circuit, the nonvolatile memory comprising:
- an optical input;
- an optical output;
- a floating gate waveguide;
- a control gate;
- a source gate;
- a first isolation coupler optically coupling the optical input to the floating gate waveguide, the first isolation coupler conductively decoupling the floating gate waveguide from the optical input;
- and
- a second isolation coupler optically coupling the floating gate waveguide to the optical output, the second isolation coupler conductively decoupling the floating gate waveguide from the optical input;
- wherein the floating gate waveguide is configured to accumulate and retain electrical charge supplied by the source gate in response to a voltage applied to the control gate.
6 more elements
A nonvolatile memory for a photonic circuit, the nonvolatile memory comprising:
- a floating gate waveguide;
- a control gate;
- a source gate;
- a first isolation coupler conductively isolating the floating gate waveguide from the control gate and the source gate;
- and
- a second isolation coupler conductively isolating the floating gate waveguide from the control gate and the source gate;
- wherein the floating gate waveguide is configured to accumulate and retain electrical charge supplied by the source gate in response to a voltage applied to the control gate.
4 more elements
Dependencies are inferred from the claim text.