Extraction of a binary code based on physical parameters of an integrated circuit
AssigneeSTMicroelectronics S.r.l.
InventorsLuc Wuidart, Michel Bardouillet, Alexandre Malherbe
Life of this patent
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Abstract
An extraction method and an integrated cell for extracting a binary value based on a propagation of an edge of a triggering signal in two electric paths, comprising across two voltage supply terminals: two parallel branches each comprising, in series, a resistor for differentiating the electric paths; a read transistor, the junction point of the resistor and of the read transistor of each branch defining an output terminal of the cell, and the gate of the read transistor of each branch being connected to the output terminal of the other branch; and a selection transistor.
Claims15
An integrated cell (1) for extracting a binary value based on a propagation of an edge of a triggering signal in two electric paths, comprising, across two voltage supply terminals (2, 3), two parallel branches each comprising, in series:
- a resistor (Rd, Rg) for differenciating the electric paths;
- a read transistor (MN1d, MN1g), the junction of the resistor and the read transistor of each branch defining an output terminal (Q, NQ) of the cell, and the gate of the read transistor of each branch being connected to the output terminal of the other branch;
- and
- a selection transistor (MN2d, MN2g).
Dependencies are inferred from the claim text.