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US 11,893,821 B2Granted
Sensor device, method for forming a sensor device, carrier tape, chip card and method for forming a chip card
AssigneeInfineon Technologies AG
InventorsJens Pohl, Frank Pueschner
Life of this patent
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Abstract
A sensor device including a fingerprint sensor and an antenna. The a fingerprint sensor has a silicon-based area sensor, a sensor area, and an electrically conductive contact region arranged laterally adjacent to the sensor area and configured to be touched upon the contact area being touched by a finger in order to bring the finger to a predetermined potential. The antenna is coupled to the fingerprint sensor to inductively couple the fingerprint sensor to a booster antenna.
Claims10
A carrier tape, comprising:
- a plurality of sensor devices, each of the sensor devices comprising:
- a fingerprint sensor, comprising:
- a silicon-based area sensor;
- a sensor area;
- and
- an electrically conductive contact region arranged laterally adjacent to the sensor area and configured to be touched upon the contact region being touched by a finger in order to bring the finger to a predetermined potential;
- and
- an antenna coupled to the fingerprint sensor to inductively couple the fingerprint sensor to a booster antenna;
- and
- a carrier tape body having a plurality of through openings, wherein one of the fingerprint sensors is arranged in each of the through openings,
- wherein the antenna of a respective sensor device of the plurality of sensor devices is formed on the carrier tape body such that it surrounds the through opening in which the fingerprint sensor is arranged.
8 more elements
A carrier tape, comprising:
- a plurality of sensor devices, each of the sensor devices comprising:
- a fingerprint sensor, comprising:
- a silicon-based area sensor,
- a sensor area;
- and
- an electrically conductive contact region arranged laterally adjacent to the sensor area and configured to be touched upon the contact region being touched by a finger in order to bring the finger to a predetermined potential;
- and
- an antenna coupled to the fingerprint sensor to inductively couple the fingerprint sensor to a booster antenna, wherein the antenna is arranged under the electrically conductive contact region, and
- a carrier tape body having a plurality of through openings, wherein one of the fingerprint sensors is arranged in each of the through openings,
- wherein the electrically conductive contact region of a respective sensor device of the plurality of sensor devices is formed on the carrier tape body such that it surrounds the through opening in which the fingerprint sensor is arranged.
7 more elements
A carrier tape, comprising:
- a plurality of sensor devices, wherein each of the sensor devices comprises:
- a fingerprint sensor;
- and
- an antenna coupled to the fingerprint sensor to inductively couple the fingerprint sensor to a booster antenna,
- wherein the fingerprint sensor comprises a sensor area with a multiplicity of sensor pads;
- and
- a carrier tape body having a plurality of through openings, wherein one of the fingerprint sensors is arranged in each of the through openings, and
- wherein the antenna of a respective sensor device of the plurality of sensor devices is formed on the carrier tape body such that it surrounds the through opening in which the fingerprint sensor is arranged.
5 more elements
A method for forming a sensor device, comprising:
- forming a through opening in a carrier body;
- forming an antenna in a manner surrounding the through opening on or in the carrier body;
- arranging a fingerprint sensor in the through opening;
- coupling the fingerprint sensor comprising a silicon-based area sensor to the antenna to inductively couple the fingerprint sensor to a booster antenna;
- and
- forming an electrically conductive contact region on the carrier body adjacent to the through opening in such a way that after the fingerprint sensor has been arranged in the through opening, the contact region is arranged laterally adjacent to the sensor area and is configured to be touched upon the contact region being touched by a finger in order to bring the finger to a predetermined potential.
3 more elements
Dependencies are inferred from the claim text.