MEMS Transducer Anchor and Spring Design for Deformation Tolerance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional MEMS and IC technologies face challenges in increasing performance, reducing size, and decreasing cost, while also requiring more complex microsystems with greater computational power, which are not currently met by existing applications.
Innovation Solution
An integrated transducer apparatus with a movable base structure, central and peripheral anchor structures, and spring structures, coupled with capacitor elements, is designed to improve tolerance of external deformations and be compatible with conventional process technology, allowing for higher device yields and broader applicability in MEMS devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional MEMS and IC technologies are used to increase performance and reduce size, then device functionality and integration are improved, but manufacturing complexity and cost control become more difficult
Solution Approach 1:
The patent divides the MEMS device structure into distinct functional regions including a first region with first capacitor elements and a second region with second capacitor elements. This segmentation allows independent optimization of different device functions while maintaining compatibility with conventional fabrication processes, thereby improving device performance without proportionally increasing manufacturing complexity
Solution Approach 2:
The patent designs a unified MEMS structure that can serve multiple functions through different operational modes. The same physical structure supports both first and second capacitor elements that can operate independently or in combination, enabling the device to perform multiple sensing or actuation functions while using a single fabrication process flow
2Volume of moving object
If device size is reduced to decrease cost and increase integration, then manufacturing cost and device density are improved, but tolerance to external deformations decreases
Solution Approach 1:
The patent implements different structural characteristics in different regions of the MEMS device. The first and second regions have distinct capacitor element configurations that are optimized for their specific functions while contributing to overall structural robustness. This local optimization allows the small device to maintain deformation tolerance in critical areas without increasing overall size
Solution Approach 2:
The patent employs a composite structure combining multiple capacitor element types within a unified MEMS device. This composite architecture provides both size reduction through integration and enhanced deformation tolerance through structural diversity, as different capacitor configurations respond differently to external deformations, ensuring continued functionality
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 provides an easy-to-use process that enhances device yields and compatibility with conventional equipment, resulting in improved MEMS devices with increased tolerance to external deformations and broader application ranges.
Implementation Method 1
at least one peripheral spring structure can be coupled to the peripheral anchor structure(s) and at least one portion of the outer surface region. The apparatus can also have at least one central spring structure(s). The central spring structure(s) can be operably coupled to the central anchor structure(s) and at least one portion of the inner surface region.
Data Source
AI summary
An improved MEMS transducer apparatus and method. The apparatus has a movable base structure including an outer surface region and an inner surface region. At least one central anchor structure can be spatially disposed within a vicinity of the inner surface region and at least one peripheral anchor structure can be spatially disposed within a vicinity of the outer surface region. Additionally, the apparatus can have at least one peripheral spring structure. The peripheral spring structure(s) can be coupled to the peripheral anchor structure(s) and at least one portion of the outer surface region. The apparatus can also have at least one central spring structure. The central spring structure(s) can be operably coupled to the central anchor structure(s) and at least one portion of the inner surface region.