DLC Electronic Components With Tunable sp2/sp3 Layer Functions
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Solution Overview
Problem
Existing electronic components made from silicon are limited in size and efficiency due to its larger atomic size, and current DLC applications in electronics primarily focus on protection and durability rather than functional integration as semiconductors or insulators.
Innovation Solution
The use of diamond-like carbon (DLC) coatings with varying sp2/sp3 ratios and doping to create semiconductor and insulating properties, allowing for the construction of smaller, more efficient passive and active electronic components by replacing silicon, and employing DLC in multiple layers for specific electronic components like transistors, diodes, and capacitors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If silicon is used as the base material for electronic components, then the components can be manufactured with established processes, but the components are limited in size reduction and efficiency improvement due to silicon's larger atomic size
Solution Approach 1:
The patent changes the fundamental material parameter from silicon to diamond-like carbon, which has a smaller atomic size (0.77 Å vs silicon's 1.17 Å). This parameter change enables component miniaturization while maintaining manufacturing feasibility through established DLC deposition techniques such as PECVD and ion beam deposition.
Solution Approach 2:
The patent employs composite DLC structures with varying sp2/sp3 carbon ratios to achieve different functional properties. By combining different DLC compositions (semiconducting, insulating, conductive) in a single device architecture, the patent enables both size reduction and functional integration without requiring entirely new manufacturing processes.
2Adaptability or versatility
If DLC is used primarily for protection and durability, then component reliability is improved, but functional integration as semiconductors or insulators is limited
Solution Approach 1:
The patent makes DLC a universal material that performs multiple functions simultaneously: it provides mechanical protection, electrical insulation, semiconductor functionality, and even conductive pathways depending on the sp2/sp3 ratio. A single DLC layer can be engineered to serve as gate dielectric, channel, or contact layer in transistor structures, enabling functional integration while maintaining reliability.
Solution Approach 2:
The patent applies different DLC compositions with specific sp2/sp3 ratios to different regions of the electronic component. For example, highly insulating DLC (low sp2 ratio) is used for gate dielectrics, while semiconducting DLC (intermediate sp2 ratio) is used for channel regions. This local quality variation enables functional integration while each region maintains its required reliability characteristics.
3Reliability
If multiple layers of DLC are used for specific electronic components, then electrical performance is maintained or enhanced, but device complexity increases
Solution Approach 1:
The patent merges multiple functional layers into a unified DLC-based structure. Instead of using separate silicon, silicon dioxide, and metal layers for different functions, the patent combines gate dielectric, channel, and contact functions into sequentially deposited DLC layers with varying compositions. This merging maintains electrical performance while simplifying the overall device architecture by eliminating material interfaces between different substance types.
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
Enables the creation of smaller, more efficient electronic components with improved tribological properties, increased power storage capability, and reduced material stresses, while maintaining or enhancing electrical performance compared to traditional silicon-based components.
Implementation Method 1
the DLC layer provides electrical insulation between the source terminal and the drain terminal
Implementation Method 2
The DLC layer is configured to deform when a mechanical force is applied to the transducer
Data Source
AI summary
Systems and methods for building passive and active electronics with diamond-like carbon (DLC) coatings are provided herein. DLC may be layered upon substrates to form various components of electronic devices. Passive components such as resistors, capacitors, and inductors may be built using DLC as a dielectric or as an insulating layer. Active components such as diodes and transistors may be built with the DLC acting substantially like a semiconductor. The amount of sp2 and sp3 bonded carbon atoms may be varied to modify the properties of the DLC for various electronic components.