Electron Microscope Specimen Mount for In Situ Analysis
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Solution Overview
Problem
Current electron microscope systems lack the ability to perform real-time specimen analysis under thermal, mechanical, chemical, and gaseous stimuli, requiring time-consuming ex-situ experimentation and resulting in ambiguous results.
Innovation Solution
Development of a system comprising a mount and stage that are mechanically and electrically connectable, allowing for in situ manipulation, experimentation, and analysis of specimens within an electron microscope, using devices with integrated experimental regions and electrical contacts for applying stimuli and detecting changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If ex-situ reactors are used for specimen analysis under environmental conditions, then real-time manipulation and experimentation can be performed, but the method is time-consuming and provides ambiguous results
Solution Approach 1:
The patent combines the experimentation environment (reactor) and analysis environment (electron microscope) into a single integrated system. The specimen chamber serves as both the reaction vessel for applying environmental stimuli and the observation chamber for real-time imaging, eliminating the need to transfer specimens between separate ex-situ reactors and microscope stages.
Solution Approach 2:
The patent introduces a specialized mount structure with integrated heating elements, gas delivery systems, and mechanical actuation mechanisms that mediates between the microscope's vacuum environment and the required experimental conditions. This intermediary system enables controlled application of thermal, mechanical, and chemical stimuli directly within the microscope chamber.
2Measurement precision
If ex-situ experimentation method is used, then specimens can be analyzed under appropriate environmental conditions, but it is difficult to quench experiments at a known point
Solution Approach 1:
The patent implements real-time feedback by continuously monitoring specimen behavior through electron microscopy imaging during the experiment. This allows researchers to observe structural changes, phase transitions, or reactions as they occur and immediately terminate or adjust the experiment at precisely defined moments, ensuring reproducible results.
Solution Approach 2:
The patent incorporates pre-programmed experimental protocols with predetermined stimulus application sequences and termination criteria. The integrated system can automatically execute these pre-planned sequences, applying environmental conditions and stopping at specific time points or upon detection of predetermined events, thereby ensuring consistent and reproducible experimental outcomes.
3Productivity
If in situ manipulation and experimentation is performed within the microscope, then experimental time is reduced and result precision is enhanced, but the system complexity increases
Solution Approach 1:
The patent designs the mount and specimen chamber to perform multiple functions: serving as a mechanical support structure, a thermal control system with integrated heating and cooling, a gas delivery system for chemical environments, and a mechanical actuation system for applying stress or strain. This multi-functionality reduces the need for separate specialized equipment while enabling comprehensive in-situ experimentation.
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 real-time, in situ manipulation and analysis of specimens, reducing experimental time and ambiguity by allowing direct experimentation within the microscope, enhancing the precision and reliability of results.
Implementation Method 1
the mount and the stage are electrically connectable... applying electricity to manipulate the specimen electrically, chemically and/or thermally
Data Source
AI summary
Mounts, stages, and systems that allow for in situ manipulation, experimentation and analysis of specimens directly within an electron microscope. The mounts fixture and interface with a device, wherein the device corresponds to a structure that holds a specimen for microscopic imaging. The mounts are mateably and/or electrically compatible with a stage. Systems using the devices, mounts, and stages that can be used directly within the electron microscope are disclosed.