×

Enclosure-to-board interface with tamper-detect circuit(s)

  • US 10,531,561 B2
  • Filed: 02/26/2019
  • Issued: 01/07/2020
  • Est. Priority Date: 02/22/2018
  • Status: Active Grant
First Claim
Patent Images

1. A tamper-respondent assembly comprising:

  • a circuit board;

    an enclosure mounted to the circuit board along an enclosure-to-board interface, the enclosure facilitating enclosing at least one electronic component coupled to the circuit board within a secure volume;

    a tamper-respondent electronic circuit structure facilitating defining the secure volume, the tamper-respondent electronic circuit structure comprising one or more tamper-detect circuits defined, at least in part, by at least one conductive trace disposed, at least in part, within the enclosure-to-board interface, the at least one conductive trace comprising stress rise regions to facilitate detecting a tamper event at the enclosure-to-board interface, wherein the at least one conductive trace comprises a serpentine conductive trace with angle bends disposed, at least in part, within the enclosure-to-board interface, and the angle bends are selected from the group comprising right angle bends and acute angle bends;

    multiple conductive vias intersecting the serpentine conductive trace and extending into the circuit board, the multiple conductive vias facilitating defining, at least in part, the stress rise regions of the at least one conductive trace, wherein the multiple conductive vias extend through the circuit board; and

    an adhesive securing the enclosure to the circuit board, the adhesive contacting, at least in part, the at least one conductive trace of the one or more tamper-detect circuits within the enclosure-to-board interface, including at the stress rise regions of the at least one conductive trace.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×