Partitioned Pressure Sensor Layout for Precise Layer Placement
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Solution Overview
Problem
Existing pressure sensors face challenges in maintaining reliability due to issues such as inaccurate application of pressure-sensitive layers and material spreading during manufacturing, which can affect sensor performance.
Innovation Solution
The pressure sensor design incorporates partitions between pressure-sensitive layers to prevent undesired application and spreading of pressure-sensitive material, ensuring precise placement and maintaining sensor reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If pressure-sensitive layers are applied without partitions, then the manufacturing process is simpler, but material spreading and misapplication occur reducing reliability
Solution Approach 1:
The sensor surface is divided into multiple detection areas by introducing partitions between adjacent pressure-sensitive layers. These partitions segment the continuous pressure-sensitive layer into isolated regions, preventing material spreading and misapplication while maintaining manufacturing feasibility. The segmentation creates distinct detection zones that improve reliability without overly complicating the device structure.
Solution Approach 2:
Partitions are introduced as intermediary structures between adjacent pressure-sensitive layers. These partitions act as barriers that prevent direct contact and material spreading between neighboring pressure-sensitive regions. The intermediary partitions isolate each detection area, ensuring precise material placement and improving sensor reliability while keeping the overall structure manageable.
2Manufacturing precision
If partitions are introduced between pressure-sensitive layers, then material placement precision is improved, but device complexity increases
Solution Approach 1:
The introduction of partitions segments the pressure-sensitive layer into discrete detection areas, enabling precise material placement within each segmented region. This segmentation prevents material from spreading into adjacent areas during the application process, thereby improving manufacturing precision while maintaining a relatively simple overall structure.
Solution Approach 2:
Partitions serve as intermediary barrier structures that physically separate adjacent pressure-sensitive layers. These intermediaries ensure that material is confined to its intended detection area during application, achieving high placement precision without requiring complex application equipment or processes.
3Adaptability or versatility
If multiple detection areas are integrated in one sensor, then detection capability is enhanced, but material application accuracy becomes more difficult to maintain
Solution Approach 1:
The sensor integrates multiple detection areas by segmenting the pressure-sensitive layer into isolated regions separated by partitions. This segmentation allows each detection area to be independently defined and controlled, making it easier to maintain material application accuracy across multiple zones. The partitions prevent material from migrating between detection areas, preserving manufacturing precision while enhancing detection capability.
Solution Approach 2:
Partitions act as intermediary barriers between multiple detection areas, preventing material application in one area from affecting adjacent areas. This intermediary structure enables the integration of multiple detection zones while maintaining high material placement accuracy, as each detection area is isolated and controlled independently during the manufacturing process.
Data Source
AI summary
According to one embodiment, a pressure sensor includes a first detection area, a second detection area, and one or plurality of partitions. The first detection area includes a first transistor, a first detection electrode electrically connected to the first transistor, and a first pressure-sensitive layer provided on the first detection electrode. The second detection area includes a second transistor, a second detection electrode electrically connected to the second transistor, and a second pressure-sensitive layer provided on the second detection electrode. The partition is provided between the first pressure-sensitive layer and the second pressure-sensitive layer.