The microcircuit card is such that at least one strain-indicating sensor is placed on the microcircuit, in a known state of strain, and is maintained in this state by a protection layer deposited on the microcircuit for as long as this layer is not affected. The microcircuit has means for measuring an electrical value that is characteristic of the strain, and a logic circuit connected to the measuring means to detect the changes in the condition of strain indicating an intrusion into the card.
申请公布号
CA2021004(A1)
申请公布日期
1991.01.14
申请号
CA19902021004
申请日期
1990.07.12
申请人
AVENIER, JEAN-PIERRE;LISIMAQUE, GILLES;MAES, PHILIPPE;KOWALSKI, JACEK
发明人
AVENIER, JEAN-PIERRE;LISIMAQUE, GILLES;MAES, PHILIPPE;KOWALSKI, JACEK