Tamper protection device and data transaction apparatus

• US 9,226,392 B2
• Filed: 01/18/2013
• Issued: 12/29/2015
• Est. Priority Date: 01/18/2013
• Status: Active Grant

• Current Assignee: XAC Automation Corp.
• Original Assignee: XAC Automation Corp.
• Inventors: Robinson, Carl Wesley, Chen, Li De, Chang, Yeng Ming
• Primary Examiner(s): Semenenko, Yuriy
• Application Number:
  US13/745,040
• Publication Number:
  US 20140204543A1
• Time in Patent Office: 1,075 Days
• Field of Search: 361/749, 361/750, 361760-765, 361/792, 361/818, 174/250, 174260-262
• US Class Current: 1/1
• CPC Class Codes: G06F 21/86 Secure or tamper-resistant housings
• CPC Class Codes: G06F 2221/2101 Auditing as a secondary aspect
• CPC Class Codes: H05K 1/0275 Security details, e.g. tampering prevention or detection
• CPC Class Codes: H05K 1/144 Stacked arrangements of planar printed circuit boards
• CPC Class Codes: H05K 1/147 at least one of the printed circuits being bent or folded, e.g. by using a flexible printed circuit H05K1/148 takes precedence
• CPC Class Codes: H05K 2201/09263 Meander
• CPC Class Codes: H05K 2201/2018 Presence of a frame in a printed circuit or printed circuit assembly
• CPC Class Codes: H05K 5/0208 Interlock mechanisms; Means for avoiding unauthorised use or function, e.g. tamperproof

Abstract

A data transaction apparatus includes a housing, a system circuit board comprising a tamper detection circuit disposed in the housing, and a tamper protection device configured to seal the system circuit board within the housing in a detachable manner. The tamper protection device includes a tamper resistant board and a resin layer covering the tamper resistant board, wherein the tamper resistant board includes a flexible substrate and a plurality of fence-like lead wires disposed on the flexible substrate. In one embodiment of the present disclosure, the tamper detection circuit is triggered to generate a secure response when a tamper event is detected.

Claims

1. A tamper protection device, comprising:

a tamper resistant board comprising a flexible substrate and a plurality of fence-like lead wires disposed on the flexible substrate, and a connecting terminal;

a resin layer covering the tamper resistant board; and

a rigid cover comprising a first surface, a second surface opposite to the first surface, and an aperture connecting the first surface with the second surface;

wherein the plurality of fence-like lead wires comprises a first loop and a second loop substantially surrounding the first loop, and the first loop and the second loop are electrically disconnected from each other, and the connecting terminal extends to the second surface through the aperture.

2. The tamper protection device of claim 1, wherein the tamper resistant board is disposed on the rigid cover.

3. The tamper protection device of claim 2, wherein the tamper resistant board substantially covers the first surface.

4. The tamper protection device of claim 1, wherein the resin layer comprises an epoxy resin.

5. The tamper protection device of claim 1, wherein the flexible substrate comprises polyethylene terephthalate.

6. The tamper protection device of claim 1, wherein the plurality of fence-like lead wires comprises silver.

7. A data transaction apparatus, comprising:

a housing;

a system circuit board comprising a tamper detection circuit disposed in the housing; and

a tamper protection device configured to seal the system circuit board within the housing in a detachable manner, wherein the tamper protection device comprises;

a tamper resistant board comprising a flexible substrate, a plurality of fence-like lead wires disposed on the flexible substrate, and a connecting terminal;

a resin layer covering the tamper resistant board; and

a rigid cover comprising a first surface, a second surface opposite to the first surface, and an aperture connecting the first surface with the second surface;

wherein the tamper detection circuit is triggered to generate a secure response when a tamper event is detected;

wherein the plurality of fence-like lead wires comprises a first loop and a second loop substantially surrounding the first loop, and the first loop and the second loop are electrically disconnected from each other, and the connecting terminal extends to the second surface through the aperture.

8. The data transaction apparatus of claim 7, wherein the tamper resistant board is disposed on the rigid cover.

9. The data transaction apparatus of claim 7, wherein the resin layer comprises an epoxy resin.

10. The data transaction apparatus of claim 7, wherein the flexible substrate comprises polyethylene terephthalate.

11. The data transaction apparatus of claim 7, wherein the plurality of fence-like lead wires comprises silver.

12. The data transaction apparatus of claim 7, wherein the system circuit board comprises a connector, and the tamper resistant board comprises a connecting terminal configured to form an electrical connection with the connector.

13. The data transaction apparatus of claim 7, wherein the system circuit board comprises at least one tamper switch disposed on one surface facing the tamper protection device.