Biometric Sensor Chip Having Distributed Sensor And Control Circuitry

摘要

A sensor includes a sensor array formed on a first side of a substrate and at least one circuit operative to communicate with the sensor array formed on a second side of the substrate. At least one via extends through the substrate to electrically connect the sensor array to the at least one circuit. Placing the at least one circuit on the second side of the substrate allows the sensor array to occupy substantially all of the first side of the substrate.

主权项

1. A sensor, comprising:
a sensor array formed on a first side of a substrate, the sensor array comprising:
a first plurality of electrical traces defining a plurality of rows; anda second plurality of electrical traces defining a plurality of columns, the plurality of columns intersecting the plurality of rows, thereby defining a plurality of intersections; anda sensing element formed at each of the plurality of intersections; at least one circuit operative to communicate with the sensor array formed on a second opposing side of the substrate; and a plurality of vias extending through the substrate to electrically connect the sensor array to the at least one circuit, wherein each of the plurality of vias is formed at a unique end of one of the plurality of rows and the plurality of columns.