Integrated Finger Print Sensor

摘要

A fingerprint sensor and fingerprint sensor system especially for integration in a device having an overlay made of an insulating material comprises a plurality of sensing elements positioned on a first side of the overlay; a plurality of probes positioned in a predetermined pattern defining a fingerprint sensing area on a second side of the overlay, the plurality of probes extending from the first side of the overlay at least partially through the overlay; a plurality of conductor leads on the first side of the overlay interconnecting the plurality of probes with the plurality of sensing elements; a plurality of amplifiers connected to the plurality of sensing elements, the number of amplifiers being less than the number of sensing elements; and an activation circuit connected to the plurality of sensing elements, the activation circuit being adapted to output at least one activation signal.

主权项

1. A fingerprint sensor configured for integration in a device having an overlay made of an insulating material, the fingerprint sensor comprising:
a plurality of sensing elements positioned on a first side of the overlay; a plurality of probes defining a fingerprint sensing area on a second side of the overlay, the plurality of probes comprising a first group of probes and a second group of probes, wherein each probe of the first group of probes extends from the first side of the overlay partially through the overlay and each probe of the second group of probes extends from the first side of the overlay through the overlay; and a plurality of conductor leads on the first side of the overlay interconnecting the plurality of probes with the plurality of sensing elements.