Directed Self Assembly Electrical Component With Random Characteristics
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Solution Overview
Problem
Conventional directed self-assembly techniques for forming electrical components often result in random patterns, which are typically discarded as manufacturing failures, rather than being utilized to create components with stable random electrical characteristics.
Innovation Solution
Incorporating guide structures with randomness-inducing features larger than manufacturing tolerances to intentionally form electrical components with random patterns using directed self-assembly, ensuring unique and stable random electrical characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If directed self assembly techniques are used to form electrical components, then manufacturing efficiency is improved, but the electrical characteristics become random and unstable
Solution Approach 1:
The patent converts the harmful random patterns traditionally discarded as manufacturing failures into a beneficial feature by intentionally designing guide structures with randomness-inducing features. This transforms the uncontrollable randomness into a controlled random electrical characteristic that is stable during operation, thereby improving productivity while maintaining reliability through cryptographic applications.
2Reliability
If guide structures with randomness inducing features are used, then random electrical characteristic is achieved, but manufacturing precision is reduced
Solution Approach 1:
The patent applies local quality by introducing randomness only in specific regions through guide structures with randomness-inducing features, while maintaining precise control in other areas. The guide structures are designed with specific features larger than manufacturing tolerance that locally induce randomness, allowing the rest of the manufacturing process to maintain high precision.
3Ease of manufacture
If conventional directed self assembly is used, then manufacturing simplicity is maintained, but the random patterns cannot be utilized for cryptographic applications
Solution Approach 1:
The patent makes the directed self assembly process multi-functional by enabling it to produce both traditional regular patterns for standard electronics and random patterns for cryptographic applications using the same basic manufacturing process. The guide structures can be designed with or without randomness-inducing features depending on the application requirement, making the manufacturing system universally applicable to both purposes.
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 approach enables the production of electrical components with truly random and stable electrical characteristics, suitable for applications like cryptography, where randomness is essential and maintained throughout operation.
Implementation Method 1
the present disclosure provides a method of forming an electrical component with a random electrical characteristic comprising the step of forming at least a portion of said electrical component with directed self assembly to have a shape corresponding to a random pattern
Data Source
AI summary
An electrical component is formed with a directed self assembly portion having a random electrical characteristic, such as resistance or capacitance. The random pattern can be produced by using a directed self assembly polymer with guide structures 2 including randomness inducing features. The electrical components with the random electrical characteristics may be used in electrical circuits relying upon random variation in electrical characteristics, such as physically unclonable function circuitry. The electrical components may be resistors and/or capacitors.