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US 10,121,044 B2Granted
Fingerprint sensor
AssigneeSamsung Electronics Co., Ltd.
InventorsByunggil Jeong, Cheheung Kim, Jungwoo Kim
Life of this patent
Estimating the term…
Abstract
A fingerprint sensor for reinforcing an electric field and preventing electric interference between adjacent electrodes. The fingerprint sensor includes a plurality of sensor electrodes provided on a substrate, an insulating layer, and a discontinuous grid formed in the insulating layer. The discontinuous grid includes a plurality of walls that are arranged in a two-dimensional (2D) manner. The plurality of walls are electrically insulated from each other.
Claims18
A fingerprint sensor comprising:
- a plurality of sensor electrodes provided on a substrate;
- a passivation layer provided on the plurality of sensor electrodes;
- an insulating layer arranged between the plurality of sensor electrodes and the passivation layer;
- and
- a discontinuous grid comprising a plurality of floating conductor walls that are electrically insulated from each other, the discontinuous grid arranged to surround each of regions of the insulating layer on the plurality of sensor electrodes, and electrically insulated from the plurality of sensor electrodes.
2 more elements
A fingerprint sensor comprising:
- a plurality of sensor electrodes provided on a substrate;
- a plurality of insulators respectively located on the plurality of sensor electrodes;
- and
- a plurality of floating conductor walls respectively surrounding the plurality of insulators and electrically insulated from each other,
- wherein the plurality of floating conductor walls are physically separately arranged to form a discontinuous grid.
2 more elements
A method of manufacturing a fingerprint sensor, the method comprising:
- providing a substrate;
- providing a plurality of sensor electrodes on the substrate;
- providing an insulating layer on the plurality of sensor electrodes;
- forming a discontinuous grid in the insulating layer such that the discontinuous grid surrounds each of regions of the insulating layer on the plurality of sensor electrodes and does not directly contact the plurality of sensor electrodes by arranging a plurality of floating conductor walls that are electrically and physically isolated from each other;
- and
- providing a passivation layer on the insulating layer.
3 more elements
Dependencies are inferred from the claim text.