Single Protective Layer Memory Cell for Adhesion and Roughness
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Solution Overview
Problem
Existing memory cells with multiple protective layers face issues such as separation, surface roughness, complex design parameters, and degradation of optical and electrical performance due to oligomer migration, leading to increased costs and decreased yields.
Innovation Solution
A memory cell comprising a crosslinked mixture of a polyether-modified acrylate oligomer, a polyester acrylic resin, and a component selected from a silicone acrylate oligomer or a fluorinated acrylate oligomer, along with a photoinitiator, forming a single protective layer that is thermally stable and minimizes shrinkage, ensuring adherence and smooth surface characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple protective layers are used, then protection performance is improved, but layer separation occurs and device reliability deteriorates
Solution Approach 1:
The patent combines multiple protective layer functions into a single protective layer by incorporating buffer layer components and hard coat layer components together with the photoinitiator to form an integrated protective layer composition, eliminating layer separation while maintaining protection performance
Solution Approach 2:
The protective layer uses a composite material system comprising buffer layer components, hard coat layer components, and photoinitiator, creating a multi-functional composite that provides both buffer and hard coat properties in a single layer
2Ease of operation
If oligomers are present in the protective layer, then coating flexibility is improved, but surface roughness increases due to oligomer migration
Solution Approach 1:
The patent changes the chemical composition parameters of the protective layer by selecting specific oligomers with appropriate molecular weights and functional groups, and by controlling the ratio of oligomer to polymer and photoinitiator, thereby achieving both flexibility and smooth surface
Solution Approach 2:
The patent applies different components to different regions of the protective layer composition - buffer layer components for adhesion and flexibility, hard coat layer components for surface hardness and smoothness, creating local functional zones within a single layer
3Ease of manufacture
If stepwise coating process is used, then layer formation is achieved, but production cost increases and yield decreases
Solution Approach 1:
The patent merges multiple coating steps into a single coating and curing operation by formulating an integrated protective layer composition that provides both buffer and hard coat functions, simplifying the manufacturing process and improving yield
Solution Approach 2:
The patent segments the protective layer composition into distinct functional components (buffer layer components, hard coat layer components, photoinitiator) that can be independently optimized but are applied together in a single step, combining simplicity with functionality
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 solution provides a cost-effective, thermally stable memory cell with a single protective layer that maintains constant thickness, reduces surface roughness, and prevents degradation, enhancing the optical and electrical performance while minimizing short circuits and maintaining electrode conductivity.
Implementation Method 1
a crosslinked mixture of a polyether-modified acrylate oligomer, a polyester acrylic resin, and a component selected from the group consisting of a silicone acrylate oligomer, and a fluorinated acrylate oligomer, and a photoinitiator
Data Source
AI summary
Disclosed are memory cells that include a crosslinked mixture of a photoinitiator, a polyether-modified acrylate oligomer, a polyester acrylic resin, and a component selected from the group consisting of a silicone acrylate oligomer, and a fluorinated acrylate oligomer, and memory devices that contain a plurality of memory cells.