Patent ID: 7720265

Claim:
A fingerprint recognition module comprising: a substrate, a composite of structured thin films on the surface of the substrate, that forms a measuring field on a portion of the substrate for measuring a fingerprint, including linear, resistive, temperature-sensitive elements arranged in rows and columns, and that contains thin-film structures for heating the linear, resistive, temperature-sensitive elements, and that contains strip conductors, connecting the linear, resistive, temperature-sensitive elements with a connection field located on the substrate outside of the measuring field, and a microelectronic analyzing switching circuit, electrically connected with the connection field and containing a switching circuit with which the thin-film structures for heating the linear, resistive, temperature-sensitive elements are controlled, the linear, resistive, temperature-sensitive elements are read out, and data are relayed, wherein the thin-film structures for heating comprise a plurality of sets of series connected longitudinal heating conductors, each set of series connected longitudinal heating conductors being situated under or above the resistive, temperature-sensitive elements of at least one respective column of resistive, temperature-sensitive elements in such a way that, when current flows through the series connected longitudinal heating conductors of the set, the longitudinal heating conductors of that set heat, at the same time, the resistive, temperature-sensitive elements of the at least one respective column.