公开(公告)号：US20250098061A1

公开(公告)日：2025-03-20

申请号：US18467060

申请日：2023-09-14

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： Philipp K. BUCHLING REGO ,  Madhana SUNDER ,  Conor Ryan THOMAS ,  Joyce E. MOLINELLI ACOCELLA ,  William L. BRODSKY ,  William SANTIAGO-FERNANDEZ ,  Michael FISHER ,  James BUSBY ,  Arthur J. HIGBY

IPC: H05K1/02

Abstract: Tamper-respondent assemblies are provided which include individualized fluid chemical mixtures for tamper detection. The tamper-respondent assemblies include, for instance, a circuit board and an enclosure. The circuit board includes an electronic component, and the enclosure is mounted to the circuit board to enclose the electronic component within a secure volume, where the secure volume is a sealed space. A fluid is disposed within the secure volume that includes a chemical mixture of multiple chemical substances, and the multiple chemical substances have randomly generated concentrations within the chemical mixture. One or more sensors are provided to facilitate detecting a change in the chemical mixture of the fluid within the secure volume indicative of a tamper event.