Universal MEMS Sensor Platform for Multi-Function Fabrication

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Solution Overview

Problem

Current sensors for process control and environmental monitoring in coal utilization plants face limitations such as severe conditions, interference from complex process streams, slow response times, and high costs, which hinder their effectiveness and widespread deployment.

Innovation Solution

A universal microelectromechanical nano-sensor platform is developed, featuring a substrate with insulating and conductive layers, air gaps, and functionalization layers for various sensor types, enabling the creation of multiple sensor classes on a single platform, including radiant, electrochemical, electronic, chemical, and thermal sensors, with ultra-low power consumption and versatility.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple sensor types are fabricated separately, then each sensor can be optimized for its specific function, but the overall system cost and complexity increase significantly

Engineering Contradiction:
Improvesensor functionalityVSAvoidsystem complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements a universal MEMS platform that can fabricate multiple sensor types (radiant, electrochemical, electronic, chemical, and thermal sensors) using a single integrated process. The platform uses a common substrate with layered functional structures that can be configured for different sensor applications, eliminating the need for separate fabrication lines for each sensor type while maintaining optimized performance for each specific sensing function.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The invention merges multiple sensor fabrication processes into a single unified platform. By combining different sensor types on one substrate with shared structural elements and manufacturing steps, the system reduces overall complexity while preserving the specialized functionality of each sensor type through selective functionalization of specific regions.

Inventive Principle:
Principle #5Merging (Combining)

2Reliability

If traditional sensor manufacturing methods are used, then sensors can be produced with established reliability, but the deployment cost and time are excessive

Engineering Contradiction:
Improvesensor reliabilityVSAvoiddeployment rate
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent segments the sensor fabrication process into modular layers and functional blocks that can be independently optimized and then integrated. This modular approach allows each sensor type to maintain its reliability through specialized design while the overall platform enables high-volume production through standardized manufacturing processes, thereby increasing deployment rate.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The invention utilizes parameter changes in the manufacturing process to produce different sensor types from the same base platform. By varying material composition, layer thickness, and functional coating parameters during fabrication, the system maintains reliable performance across different sensor types while enabling rapid production scaling through consistent process parameters.

Inventive Principle:
Principle #35Parameter changes

3Measurement precision

If sensors are placed close to process points for effective control, then measurement accuracy improves, but exposure to severe conditions increases sensor failure risk

Engineering Contradiction:
Improvesensing accuracyVSAvoidenvironmental stress
Core Design Contradiction:
Measurement precisionVSObject-affected harmful factors

Solution Approach 1:

The patent applies local quality by providing different environmental protections to different regions of the sensor platform. Sensitive sensing elements are located in protected zones with appropriate encapsulation and shielding, while other regions can withstand harsher conditions. This allows the sensors to be positioned close to process points for accurate measurement while minimizing exposure to harmful environmental factors through localized protective structures.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS7911010B2Apparatus and method for microfabricated multi-dimensional sensors and sensing systems
Publication Date: 2011.03.22 SENSIRION AG
  • US7911010B2 patent drawing
  • US7911010B2 patent drawing
  • US7911010B2 patent drawing

AI summary

A universal microelectromechanical MEMS nano-sensor platform having a substrate and conductive layer deposited in a pattern on the surface to make several devices at the same time, a patterned insulation layer, wherein the insulation layer is configured to expose one or more portions of the conductive layer, and one or more functionalization layers deposited on the exposed portions of the conductive layer. The functionalization layers are adapted to provide one or more transducer sensor classes selected from the group consisting of: radiant, electrochemical, electronic, mechanical, magnetic, and thermal sensors for chemical and physical variables.