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A single-chip fingerprint sensor and identifier
IEEE Journal of Solid-State Circuits
A chip architecture that integrates a fingerprint sensor and an identifier in a single chip is proposed. The fingerprint identifier is formed by an array of pixels, and each pixel contains a sensing element and a processing element. The sensing element senses capacitances formed by a finger surface to capture a fingerprint image. An identification is performed by the pixel-parallel processing of the pixels. The sensing element is built above the processing element in each pixel. The chipdoi:10.1109/4.808910 fatcat:etazqkmtgreejcspahahtzzjem