Molding Apparatus Elastic Buffering for Imprint Alignment
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Solution Overview
Problem
Existing imprint techniques face challenges in accurately aligning mold and substrate positions, leading to potential damage during the microfabrication process due to abnormal control operations.
Innovation Solution
A molding apparatus with a mold holding unit, substrate holding unit, and a control unit that applies an elastic force to move the mold away from the substrate in case of abnormality detection, preventing contact and damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the position of the mold holding portion or substrate holding portion is controlled to align the pattern portion with the shot region, then the manufacturing precision is improved, but the reliability deteriorates due to potential abnormal control operations causing damage
Solution Approach 1:
The spring member is pre-installed to provide elastic buffering between the mold and substrate. When abnormal control operations occur, the spring member absorbs impact forces before they can cause damage to the mold or substrate, thus cushioning against potential harm in advance while maintaining alignment precision during normal operation
Solution Approach 2:
The spring member acts as an intermediary element between the mold and substrate. It mediates the interaction by providing elastic compliance that allows precise positioning during normal operation while absorbing abnormal forces during control failures, thus protecting both components without compromising alignment accuracy
2Productivity
If the mold and substrate are brought into contact for imprinting, then the productivity is improved, but the object-affected harmful factors increase due to potential damage from abnormal contact
Solution Approach 1:
The spring member is installed beforehand to provide elastic buffering during the imprinting process. When abnormal contact occurs, the spring member absorbs impact forces before they can cause damage to the mold or substrate, thus enabling safe contact for high-productivity imprinting while mitigating damage risks
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
Prevents damage to the mold and substrate by ensuring safe separation during abnormal control operations, maintaining precision in the microfabrication process.
Implementation Method 1
a first elastic member configured to apply a first elastic force to the mold holding unit in a direction away from the substrate holding unit
Data Source
AI summary
A molding apparatus that molds a composition on a substrate with a mold includes a mold holding unit configured to hold the mold, a substrate holding unit configured to hold the substrate, a first elastic member configured to apply a first elastic force to the mold holding unit in a direction away from the substrate holding unit, and a control unit configured to cause the mold holding unit to move in the direction away from the substrate holding unit in a case where the control unit determines that an abnormality has occurred.