公开(公告)号：EP1476897A1

公开(公告)日：2004-11-17

申请号：EP03718864.6

申请日：2003-02-11

Applicant: STMicroelectronics S.A.

Inventor： WUIDART, Luc ,  Malherbe, Alexandre ,  BARDOUILLET, Michel

IPC: H01L21/02

CPC classification number: H01L28/20

Abstract: The invention relates to a method and device for the irreversible reduction of the value of an integrated polycrystalline silicon resistor. The inventive method consists in temporarily subjecting the resistor to a stress current which is greater than a current (Im) for which the value of the resistor is maximum.

公开(公告)号：EP1476872A1

公开(公告)日：2004-11-17

申请号：EP03718863.8

申请日：2003-02-11

Applicant: STMicroelectronics S.A.

Inventor： WUIDART, Luc ,  MALHERBE, Alexandre ,  BARDOUILLET, Michel

IPC: G11C5/00 ,  G11C14/00 ,  H03K3/356

CPC classification number: G11C14/00 ,  H03K3/356008

Abstract: The invention relates to a method and an integrated cell (1) for extracting a binary value from a propagation of a trigger signal front in two electrical paths comprising two parallel legs located between two voltage application terminals (2, 3). Said legs are respectively provided with the following elements mounted in series: an electrical path differentiation resistance (Rg, Rd); a readout transistor (MNld, MNlg); and a selection transistor (MN2d, MN2g). The central point between the resistance and the readout transistor of each leg defines an outlet terminal (Q, NQ) of the cell, and the readout transistor gate of each leg is connected to the output terminal of the other leg.

公开(公告)号：EP1374191A2

公开(公告)日：2004-01-02

申请号：EP02730352.8

申请日：2002-04-04

Applicant: STMicroelectronics S.A.

Inventor： LIARDET, Pierre-Yvan ,  WUIDART, Luc ,  GUETTE, François

IPC: G07F7/10

CPC classification number: G07F7/127 ,  G06F21/73 ,  G06F21/75 ,  G06Q20/341 ,  G06Q20/4097 ,  G07F7/08 ,  G07F7/082 ,  G07F7/1008 ,  G07F7/12 ,  H01L23/544 ,  H01L23/57 ,  H01L2223/5444 ,  H01L2223/54473 ,  H01L2924/0002 ,  H04L9/0866 ,  H04L9/3278 ,  H01L2924/00

Abstract: The invention relates to a method and a circuit for extracting a secret datum from an integrated circuit involved in an authentication procedure. The secret datum is obtained at least partially from a network of physical parameters that are linked to the production of the integrated circuit chip. Said secret datum is generated upon request and made ephemeral.

公开(公告)号：EP1309938A1

公开(公告)日：2003-05-14

申请号：EP01963102.7

申请日：2001-08-16

Applicant: STMicroelectronics S.A.

Inventor： WUIDART, Luc ,  BARDOUILLET, Michel

IPC: G06K7/00 ,  G06K7/08 ,  G06K7/10

CPC classification number: G06K7/10346 ,  G06K7/0008 ,  G06K7/10178 ,  G06K7/10336

Abstract: The invention concerns an antenna generating an electromagnetic field for an electromagnetic transponder, and a terminal provided with such an antenna, comprising a first inductive element (Lp) designed to be connected to two terminals (3, 4) applying an energizing voltage (Vg), and a parallel resonant circuit (21) coupled with the first inductive element.