Abstract:
PROBLEM TO BE SOLVED: To provide an integrated circuit protected against reverse engineering, and to provide a method of fabricating the same. SOLUTION: A semiconductor device includes: a field oxide layer 4 disposed on a semiconductor substrate having an opening for limiting a contact region of the semiconductor substrate; a metal plug contact 7 disposed on a portion of the field oxide located within the contact region; and a metal 10 connected to the metal plug contact, wherein the metal plug contact contacts the portion of the field oxide layer, and the portion of the field oxide layer insulates the metal plug contact from the contact region. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a technique for and structures for camouflaging an integrated circuit structure against reverse engineering. SOLUTION: The integrated circuit structure is composed of a plurality of layers of material having a controlled outline. A layer of silicide metal is disposed in active areas of the substrate and has a gap over a channel connecting adjacent active areas. The channel has a channel block structure, which appears identical under reverse engineering whether it is made conductive or insulative. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a semiconductor integrated circuit (IC) protection method cheep and easy for mounting helpful to make it impossible to actualize reverse engineering of the IC to prevent the reverse engineering of the IC specifically by making a reverse enginner very difficult to finding out the real contact of each source and drain. SOLUTION: A semiconductor device including the IC having a metal trace connected to a field oxide is provided with a reverse engineering protection. The metallization is usually connected to the gate, source, or drain of a circuit but not to an insulated field oxide, so as to make the reverse enginner make a mistake. The method is for forming the device. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
A technique for and structures for camouflaging an integrated circuit structure. The integrated circuit structure is formed having a well of a first conductivity type under the gate region being disposed adjacent to active regions of a first conductivity type. The well forming an electrical path between the active regions regardless of any reasonable voltage applied to the integrated circuit structure.
Abstract:
An apparatus and method for preventing information leakage attacks that utilize timeline alignment. The apparatus and method inserts a random number of instructions into an encryption algorithm such that the leaked information can not be aligned in time to allow an attacker to break the encryption.
Abstract:
A technique for and structres for camouflaging an integrated circuit structure. A layer of conductive material having a controlled outline is disposed to provide artifact edges of the conductive material that resemble an operable device when in fact the device is not operable.
Abstract:
A multilayered integrated circuit and a method of designing a multilayered integrated circuit are provided. The circuit comprises at least two conductive layers and non functional conductive lines placed in the conductive layers. The non functional conductive lines are made of a material which is the same as the material in the conductive layers and have dimensions which are the same as the dimension of the material in the conductive layers. The non functional conductive lines perform functions which are unnecessary to the operation of the integrated circuit and are undistinguishable from the functional conductive lines, thus burdening the work of a reverse engineer. The method of designing the multilayered circuit comprises a step of providing a computer generated representation of the non functional conductive lines.
Abstract:
A method and circuit for blocking unauthorized access to at least one memory cell in a semiconductor memory. The method includes providing a switch and/or a link which assumes an open state when access to the at least one memory cell is to be blocked; and coupling-a data line associated with the at least one memory cell to a constant voltage source in response to the switch or link assuming an open state.
Abstract:
Technique and structures for camouflaging an integrated circuit structure. The integrated circuit structure is formed by a plurality of layers of material having controlled outlines and controlled thicknesses. A layer of dielectric material of a controlled thickness is disposed among said plurality of layers to thereby render the integrated circuit structure intentionally inoperable.