Patent application number | Description | Published |
20090251168 | DEVICE FOR PROTECTING AN INTEGRATED CIRCUIT AGAINST A LASER ATTACK - An integrated circuit including a substrate of a semiconductor material having first and second opposite surfaces and including active areas leveling the first surface. The integrated circuit includes a device of protection against laser attacks, the protection device includes at least one first doped region extending between at least part of the active areas and the second surface, a device for biasing the first region, and a device for detecting an increase in the current provided by the biasing device. | 10-08-2009 |
20100318885 | METHOD OF DETECTING AN ATTACK BY FAULT INJECTION ON A MEMORY DEVICE, AND CORRESPONDING MEMORY DEVICE - A memory device may include a memory plane including a group of memory cells configured to store a block of bits including data bits and parity bits, and a detector for detecting a fault injection including a reader to read each bit, and a first checker to perform, when reading a block, a parity check based on the read value of each data and parity bit. The memory plane may include reference memory cells arranged between some of the memory cells to create packets of m memory cells. Each reference memory cell may store a reference bit and each packet of m memory cells may store m bits of the associated block, when m is greater than 1, with different parities. The detector may further include a second checker to perform, when reading the block, a check on the value of each reference bit. | 12-16-2010 |
20110113256 | Secure Method for Processing a Content Stored Within a Component, and Corresponding Component - The component comprises a first memory (MM) comprising a first portion (P | 05-12-2011 |
20110153245 | METHOD OF IDENTIFYING AN INTEGRATED CIRCUIT AND CORRESPONDING INTEGRATED CIRCUIT - An integrated circuit includes non-volatile storage configured to secretly store a digital word, the value of which forms an identification code. The integrated circuit also includes control circuitry configured to receive the digital word and to generate transient electrical currents or transient voltages, the characteristics of which depend on the value of the digital word. There is an electrically conductive network configured to be passed through by the electrical currents or receive the transient voltages so as to generate an electromagnetic field that identifies the integrated circuit. | 06-23-2011 |
20110234307 | COUNTERMEASURE METHOD AND DEVICE AGAINST AN ATTACK BY FAULT INJECTION IN AN ELECTRONIC MICROCIRCUIT - The disclosure relates to a method for detecting an attack in an electronic microcircuit, comprising: forming the microcircuit in a substrate, forming in the substrate a first well electrically isolated from the substrate, by a second well and an embedded well, forming in the first and second wells a data processing circuit comprising a ground terminal formed in the first well and a power supply terminal formed in the second well, and activating a detection signal when a voltage at the ground or power supply terminal of the data processing circuit crosses a threshold voltage. | 09-29-2011 |
20120320477 | DEVICE FOR DETECTING AN ATTACK IN AN INTEGRATED CIRCUIT CHIP - An integrated circuit chip including a plurality of parallel wells of alternated conductivity types formed in the upper portion of a semiconductor substrate of a first conductivity type, and a device of protection against attacks including: between the wells, trenches with insulated walls filled with a conductive material, said trenches extending from the upper surface of the wells to the substrate; and a circuit capable of detecting a modification of the stray capacitance formed between said conductive material and a region of the chip. | 12-20-2012 |
20120320480 | DEVICE FOR PROTECTING AN INTEGRATED CIRCUIT CHIP AGAINST ATTACKS - An integrated circuit chip includes: a plurality of parallel wells of alternated conductivity types formed in the upper portion of a semiconductor substrate of a first conductivity type; in each well of the first type, a plurality of MOS transistors having a channel of the second conductivity type, and in each well of the second type, a plurality of MOS transistors having a channel of the first type, transistors of neighboring wells being inverted-connected; and a device of protection against attacks, including: a layer of the second type extending under said plurality of wells, from the lower surface of said wells; and regions of lateral insulation between the wells, said regions extending from the upper surface of the wells to said layer. | 12-20-2012 |
20130015900 | COUNTERMEASURE METHOD AND DEVICE FOR PROTECTING DATA CIRCULATING IN AN ELECTRONIC MICROCIRCUIT - The disclosure relates to a countermeasure method in an electronic microcircuit, comprising successive process phases executed by a circuit of the microcircuit, and adjusting a power supply voltage between power supply and ground terminals of the circuit, as a function of a random value generated for the process phase, at each process phase executed by the circuit. | 01-17-2013 |
20130193437 | DEVICE FOR PROTECTING AN INTEGRATED CIRCUIT AGAINST BACK SIDE ATTACKS - An integrated circuit including: a semiconductor substrate of a first conductivity type having at least one well of a second conductivity type laterally delimited, on two opposite walls, by regions of the first conductivity type, defined at its surface; at least one region of the second conductivity type which extends in the semiconductor substrate under the well; and a system for detecting a variation of the substrate resistance between each association of two adjacent regions of the first conductivity type. | 08-01-2013 |
20140111230 | SYSTEM FOR DETECTING A LASER ATTACK ON AN INTEGRATED CIRCUIT CHIP - A system for detecting a laser attack on an integrated circuit chip formed in a semiconductor substrate, including a detection device capable of detecting voltage variations of the substrate. | 04-24-2014 |
20140138686 | PROTECTION OF AN INTEGRATED CIRCUIT AGAINST ATTACKS - An integrated circuit, including: a semiconductor substrate of a first conductivity type; a plurality of regions of the first conductivity type vertically extending from the surface of the substrate, each of the regions being laterally delimited all along its periphery by a region of the second conductivity type; and a device for detecting a variation of the substrate resistance between each region of the first conductivity type and an area for biasing the substrate to a reference voltage. | 05-22-2014 |
20150019885 | COUNTERMEASURE METHOD AND DEVICE FOR PROTECTING DATA CIRCULATING IN AN ELECTRONIC MICROCIRCUIT - The disclosure relates to a countermeasure method in an electronic microcircuit, comprising successive process phases executed by a circuit of the microcircuit, and adjusting a power supply voltage between power supply and ground terminals of the circuit, as a function of a random value generated for the process phase, at each process phase executed by the circuit. | 01-15-2015 |