3D Printed Tamper-Responsive Enclosure with Conductive Layers
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Traditional three-dimensional printing techniques for tamper-responsive enclosures are not optimal in providing effective protection against unauthorized access, as they lack robustness in detecting penetration attempts and ensuring secure destruction of sensitive information.
Innovation Solution
A three-dimensional printed tamper-responsive enclosure is created by layering non-conductive material with conductive material and incorporating a sensing device, which detects changes in electrical characteristics upon penetration attempts, triggering the destruction of stored information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional three-dimensional printing techniques are used to create tamper-responsive enclosures, then the manufacturing process is simple and cost-effective, but the enclosure lacks robustness in detecting penetration attempts and ensuring secure destruction of sensitive information
Solution Approach 1:
The enclosure is constructed using composite materials comprising conductive material and non-conductive material in alternating layers. The conductive layers contain conductive particles (such as silver particles) embedded in a polymer matrix, while the non-conductive layers provide structural support and electrical isolation. This composite structure enables the enclosure to detect penetration attempts through changes in electrical characteristics while maintaining manufacturing simplicity through three-dimensional printing techniques.
Solution Approach 2:
The patent utilizes changes in electrical parameters (conductivity, resistance) of the conductive material layers to detect penetration attempts. When the enclosure is breached, the conductive pathways are disrupted, causing measurable changes in electrical characteristics that trigger the destruction of sensitive information. This parameter-based detection mechanism provides reliable security without requiring complex sensing systems.
2Reliability
If conductive material is layered with non-conductive material in three-dimensional printing, then the enclosure provides better tamper detection capability, but the manufacturing process becomes more complex
Solution Approach 1:
The enclosure is segmented into multiple alternating layers of conductive material and non-conductive material. Each layer serves a specific function: conductive layers provide detection capability through embedded conductive particles and pathways, while non-conductive layers provide structural integrity and electrical isolation. This segmentation allows the complex functionality to be achieved through repeated printing of relatively simple layer patterns, making the manufacturing process manageable despite the multi-material requirements.
Solution Approach 2:
The three-dimensional printing process is designed to deposit multiple materials (conductive and non-conductive) in a single integrated manufacturing operation. The printing system can switch between materials and adjust deposition parameters automatically, allowing the multi-layer composite structure to be produced without requiring separate manufacturing steps for each material type. This multi-functionality in the printing process maintains ease of manufacture despite the complexity of the final enclosure structure.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution effectively prevents unauthorized access by ensuring that attempts to penetrate the enclosure result in detectable damage to the conductive material, leading to the secure erasure or destruction of sensitive information, thereby enhancing the protection of valuable data.
Implementation Method 1
the conductive material may be used to form circuits or perform related functions... detectable as a change in an electrical characteristic of the conductive material
Data Source
AI summary
A tamper respondent apparatus having an enclosure comprising of an electrically conductive material layer configured to substantially form continuous electrically conductive paths, an electrically non-conductive material layer forming an outer layer configured to substantially insulate said electrically conductive material layer, an electrical connector at a corner of an underside surface of said enclosure, whereby said conductive material layer and non-conductive material layer are extruded or deposited in successive layers by a three dimensional printer, wherein said electrically conductive material layer forms an inner layer of said extrusion of said three dimensional printer, and wherein a cohesive strength of said conductive material layer is configured to be less than a cohesive strength of said non-conductive material layer.