Enclosure with tamper respondent sensor

A tamper respondent assembly comprising:

• an electronic component;
• an enclosure enclosing at least partly the electronic component;
• and
• a piezoelectric sensor integrated in the enclosure;
• wherein the piezoelectric sensor comprises:
• a base structure comprising a first conductive layer, a first insulating layer deposited over the first conductive layer, and a second conductive layer deposited over the first insulating layer, the second conductive layer comprising a metal;
• a piezoelectric layer deposited on the base structure and arranged between the base structure and a second structure comprising a third conductive layer, a second insulating layer deposited over the third conductive layer, and a fourth conductive layer deposited over the second insulating layer, wherein the piezoelectric layer comprises a plurality of nanorods;
• and
• sensing circuitry configured to observe sensing signals of the integrated piezoelectric sensor, wherein an electrode of the sensing circuitry comprises the second conductive layer.

A security system for protecting security-sensitive information, the security system comprising:

• an electronic component configured to store and/or process security sensitive information;
• and
• a piezoelectric sensor comprising:
• a base structure comprising a first conductive layer, a first insulating layer deposited over the first conductive layer, and a second conductive layer deposited over the first insulating layer, the second conductive layer comprising a metal;
• a piezoelectric layer deposited on the base structure and arranged between the base structure and a second structure comprising a third conductive layer, a second insulating layer deposited over the third conductive layer, and a fourth conductive layer deposited over the second insulating layer, wherein the piezoelectric layer comprises a plurality of nanorods;
• sensing circuitry configured to observe sensing signals of the piezoelectric sensor, wherein an electrode of the sensing circuitry comprises the second conductive layer;
• and
• provide an alarm signal to the electronic component upon detection of predefined strain profiles;
• wherein the electronic component is configured to initiate an action to obstruct analysis of the security-sensitive information upon receipt of the alarm signal.

A computer program product for observing sensing signals of sensing circuitry of a security system for protecting security-sensitive information, the security system comprising

• an electronic component configured to store and/or process security sensitive information;
• a piezoelectric sensor comprising:
• a base structure comprising a first conductive layer, a first insulating layer deposited over the first conductive layer, and a second conductive layer deposited over the first insulating layer, the second conductive layer comprising a metal;
• and
• a piezoelectric layer deposited on the base structure and arranged between the base structure and a second structure comprising a third conductive layer, a second insulating layer deposited over the third conductive layer, and a fourth conductive layer deposited over the second insulating layer, wherein the piezoelectric layer comprises a plurality of nanorods;
• and
• sensing circuitry for observing sensing signals of the piezoelectric sensor, wherein an electrode of the sensing circuitry comprises the second conductive layer;
• the computer program product comprising a computer readable storage medium having program instructions embodied therewith, the program instructions executable by the security system to cause the security system to perform a method comprising:
• observing sensing signals of the piezoelectric sensor;
• providing an alarm signal upon detection of predefined strain profiles;
• and
• initiating an action to obstruct analysis of the security-sensitive information upon receipt of the alarm signal.