Laser Sample Carrier Reference Structure
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Solution Overview
Problem
High-resolution microscopy methods face contamination issues due to plastic fragments detaching from sample carriers during laser-induced grid line formation, which accumulate and interfere with optical quality.
Innovation Solution
Using multi-broken lines instead of solid lines for the reference structure, formed by a laser, reduces thermal effects and microplasma formation, minimizing plastic fragment detachment and accumulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If solid lines are used for the reference structure, then the reference structure is continuous and provides good localization, but thermal effects and microplasma formation cause plastic fragments to detach and contaminate the sample carrier
Solution Approach 1:
The continuous solid lines are segmented into multi-broken lines consisting of multiple discrete line segments separated by gaps. This segmentation reduces the continuous thermal exposure and microplasma formation along the line path, thereby minimizing plastic fragment detachment while maintaining the reference structure's localization function through the distributed pattern of segments
Solution Approach 2:
The laser writes the reference structure using periodic pulsing rather than continuous irradiation. By applying laser energy in periodic pulses that create discrete line segments with gaps between them, the method reduces cumulative thermal effects and microplasma formation compared to continuous solid line writing, while still achieving adequate localization precision
2Productivity
If laser is used to form reference structure, then the grid lines can be introduced efficiently, but plastic fragments are detached by thermal effects and accumulate on the surface
Solution Approach 1:
The laser writing process is segmented into multiple discrete pulses that create multi-broken lines instead of continuous solid lines. This segmentation maintains writing efficiency by automating the process while reducing harmful thermal accumulation and microplasma formation that cause plastic fragment detachment and surface contamination
Solution Approach 2:
The laser writing process maintains continuity in terms of automation and efficiency by systematically writing the reference structure across the sample carrier surface. However, the continuous action is modulated into periodic pulses with gaps, ensuring that productivity is preserved while thermal effects and fragment detachment are reduced
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
This method produces higher-quality sample carriers with reduced contamination, suitable for high-resolution microscopy by forming the reference structure below the surface or within the plastic body, preventing plastic fragments from becoming surface impurities.
Implementation Method 1
forming the reference structure comprises generating the at least one line or point with the aid of a laser
Implementation Method 2
plastic fragments are detached from the plastic body by thermal effects
Implementation Method 3
the formation of microplasma, which fragments then accumulate on the surface of the body
Data Source
Figure 1
Figure 2~3
AI summary
The invention relates to a method for producing a sample carrier made of plastic, comprising the steps of providing a plastic body and forming a reference structure in or on the plastic body, wherein the formation of the reference structure comprises generating at least one multiply interrupted line using a laser.