公开(公告)号：US20200008295A1

公开(公告)日：2020-01-02

申请号：US16567034

申请日：2019-09-11

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： Kathleen Ann FADDEN ,  James A. BUSBY ,  David C. LONG ,  John R. DANGLER ,  Alexandra ECHEGARAY ,  Michael J. FISHER ,  William SANTIAGO-FERNANDEZ

IPC: H05K1/02 ,  H05K1/18 ,  H05K1/11

Abstract: Tamper-respondent assemblies and fabrication methods are provided which incorporate enclosure-to-circuit board protection. The tamper-respondent assemblies include a circuit board, and an enclosure mounted to the circuit board along an enclosure-to-board interface. The enclosure facilitates enclosing at least one electronic component coupled to the circuit board within a secure volume. A tamper-respondent electronic circuit structure facilitates defining the secure volume, and includes one or more tamper-detect circuits including at least one conductive trace disposed, at least in part, within the enclosure-to-board interface. The conductive trace(s) includes stress rise regions to facilitate tamper-detection at the enclosure-to-board interface. An adhesive is provided to secure the enclosure to the circuit board. The adhesive contacts, at least in part, the conductive trace(s) of the tamper-detect circuit(s) at the enclosure-to-board interface, including at the stress rise regions of the conductive trace(s).

公开(公告)号：US20190261506A1

公开(公告)日：2019-08-22

申请号：US16285437

申请日：2019-02-26

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： Kathleen Ann FADDEN ,  James A. BUSBY ,  David C. LONG ,  John R. DANGLER ,  Alexandra ECHEGARAY ,  Michael J. FISHER ,  William SANTIAGO-FERNANDEZ

IPC: H05K1/02 ,  H05K1/18 ,  H05K1/11

Abstract: Tamper-respondent assemblies and fabrication methods are provided which incorporate enclosure-to-circuit board protection. The tamper-respondent assemblies include a circuit board, and an enclosure mounted to the circuit board along an enclosure-to-board interface. The enclosure facilitates enclosing at least one electronic component coupled to the circuit board within a secure volume. A tamper-respondent electronic circuit structure facilitates defining the secure volume, and includes one or more tamper-detect circuits including at least one conductive trace disposed, at least in part, within the enclosure-to-board interface. The conductive trace(s) includes stress rise regions to facilitate tamper-detection at the enclosure-to-board interface. An adhesive is provided to secure the enclosure to the circuit board. The adhesive contacts, at least in part, the conductive trace(s) of the tamper-detect circuit(s) at the enclosure-to-board interface, including at the stress rise regions of the conductive trace(s).