Patent ID: 7460345
Filing Date: 2008-12-02
Classification: G06K,H01L

Abstract:
1. An integrated circuit for a data carrier, comprising: a first terminal and a second terminal, wherein the two terminals are provided for connection with transmission means of the data carrier, an ESD protection circuit, which is connected between the two terminals and which comprises a series connection consisting of a first protection diode and a protection stage, which protection stage may be brought from a blocking state into a conductive state by exceeding a voltage threshold, and which comprises a second protection diode connected in parallel with the series connection and in opposition to the first protection diode of the series connection, and a rectifier circuit, which is connected to the ESD protection circuit and comprises a rectifier diode connected in parallel with the ESD protection circuit, wherein the rectifier diode of the rectifier circuit takes the form of a pure Schottky diode with a parasitic p/n junction and wherein the pure Schottky diode with the parasitic p/n junction simultaneously forms the second protection diode of the ESD protection circuit.