Segmented Flexible Stamp for Multi-Substrate Imprinting
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Solution Overview
Problem
Existing roll-to-plate imprinting techniques face challenges in efficiently texturing multiple smaller substrates without damaging the flexible stamp due to height differences and edge contact, leading to scratches and yield loss.
Innovation Solution
A flexible stamp with a carrier and adhered spots of textured polymeric material, each with a parallel surface, allows for simultaneous imprinting on multiple substrates, featuring a robust design that prevents damage and enhances throughput.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a flexible stamp is used to imprint multiple smaller substrates simultaneously, then productivity increases, but the flexible stamp may be damaged by height differences and edge contact
Solution Approach 1:
The flexible stamp is divided into multiple independent spots, each capable of imprinting a separate substrate. This segmentation allows simultaneous imprinting of multiple substrates while isolating the damage risk to individual spots rather than the entire stamp.
Solution Approach 2:
Each spot on the flexible stamp is designed with specific local properties - the textured polymeric material is applied only where needed for imprinting, while the carrier provides structural support. This local differentiation allows the stamp to handle multiple substrates of different heights without compromising overall durability.
2Manufacturing precision
If pressure is applied to the flexible stamp for imprinting, then imprinting quality improves, but scratches and damage occur on the textured area
Solution Approach 1:
The flexible stamp design incorporates a carrier layer that provides mechanical cushioning and protection to the textured polymeric material. This beforehand cushioning allows pressure to be applied during imprinting without causing scratches or damage to the textured area.
Solution Approach 2:
The flexible stamp is constructed as a composite structure combining a carrier material with textured polymeric material spots. This composite design provides both the necessary flexibility for imprinting and the structural strength to prevent damage under pressure.
3Adaptability or versatility
If substrates of different heights are processed, then versatility improves, but edge contact causes damage to the flexible stamp
Solution Approach 1:
By segmenting the flexible stamp into multiple independent spots, the design can accommodate substrates of different heights at different positions. Each spot can independently adapt to its substrate without transmitting damaging edge contact forces to the entire stamp structure.
Solution Approach 2:
The flexible stamp uses a carrier that acts as a flexible shell providing mechanical support and protection. This flexible carrier structure allows the stamp to adapt to height variations while protecting the textured polymeric material from damage at the edges.
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 flexible stamp enables efficient and damage-free imprinting of multiple smaller substrates, increasing production efficiency and reducing costs compared to traditional methods.
Implementation Method 1
spots of a flexible material which spots are adhered to the first surface of the carrier
Data Source
Figure 1a~1b
Figure 2a~2b
Figure 3
AI summary
The invention pertains to a flexible stamp for use in an imprinting process comprising a carrier, the carrier comprising a first surface and at least two spots of a flexible, material which spots are adhered to the first surface of the carrier and have a surface which is parallel to the front surface of the carrier and is textured by an imprinting pattern.