Multilayer printed circuit board having tamper detection circuitry
AssigneeSymbol Technologies, Inc.
InventorJayanetti Koralalage Jayanetti
Life of this patent
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Abstract
A multilayer printed circuit board is provided. The multilayer printed circuit board includes a first and a second substrate each having a conductive signal trace; and a third substrate positioned between the first and the second substrate. The third substrate includes at least one integrated circuit mounted thereon. Tamper detection circuitry is in electrical communication with at least one of the conductive traces and is configured for providing a security response after detection of an interruption in an electrical connection provided by the at least one conductive trace.
Claims22
A multisubstrate printed circuit board, comprising:
- first and second substrate each having a conductive trace;
- at least one integrated circuit mounted on a third substrate, the third substrate being positioned between the first and the second substrate;
- and
- tamper detection circuitry in electrical communication with at least one of the conductive traces and configured to provide a security response after detection of an interruption in an electrical connection provided by the at least one conductive trace.
The multisubstrate printed circuit board as recited in claim 6, wherein the at least one integrated circuit is mounted within a ball grid array.
An electrical device comprising:
- a housing;
- and
- a multilayer printed circuit board mounted within the housing, the multilayer printed circuit board comprising:
- first and second substrates each having a conductive trace;
- a third substrate positioned between the first and the second substrates;
- and
- tamper detection circuitry in electrical communication with at least one of the conductive traces and being configured to provide a security response after detection of an interruption in an electrical connection provided by the at least one conductive trace.
A method for detecting tampering of a printed circuit board, the method comprising:
- mounting at least one integrated circuit onto the printed circuit board;
- positioning the printed circuit board between a first and second substrate;
- providing a conductive trace on at least one of the first and second substrate;
- and
- providing a security response after detection of an interruption in an electrical connection provided by the conductive trace.
A printed circuit board, comprising:
- first and second conductive signal traces;
- at least one integrated circuit mounted on a substrate;
- and
- tamper detection circuitry in electrical communication with at least one of the first or second conductive traces and configured to provide a security response after detection of an interruption in an electrical connection provided by the at least one first or second conductive trace;
- wherein the first and second conductive signal traces are mounted to at least one of the at least one integrated circuit and substrate.
Dependencies are inferred from the claim text.