Roll-to-Roll Additive Manufacturing for Flexible Component Integration
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Solution Overview
Problem
Conventional additive manufacturing techniques are time-consuming and costly, limiting their application to complex, low-volume, and high-cost parts, and there is a need for efficient and cost-effective methods to integrate electronic components into flexible substrates for various applications.
Innovation Solution
A roll-to-roll additive manufacturing process is employed to create flexible laminate electronic devices by aligning electronic components with apertures in flexible additive layers and covering them with a flexible cover layer, using a combination of adhesive layers to form a durable, flexible structure that can be cut into segments for various applications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional additive manufacturing techniques (stereo lithography, selective laser sintering, fused deposition modeling) are used, then manufacturing precision and complexity handling are improved, but manufacturing cost and time consumption increase significantly
Solution Approach 1:
The device is segmented into multiple flexible layers (substrate layer, first flexible additive layer with apertures, second flexible additive layer, flexible cover layer), each performing a specific function. This segmentation enables parallel processing and roll-to-roll manufacturing, significantly improving production speed while maintaining precision through specialized functions of each layer.
Solution Approach 2:
The invention transitions from conventional three-dimensional additive manufacturing to a two-dimensional layering approach with roll-to-roll processing. By flattening the manufacturing dimension and using continuous flexible layers that can be processed in rolls, the system achieves high-speed production while maintaining manufacturing precision through controlled layer deposition and alignment.
2Manufacturing precision
If conventional additive manufacturing techniques are used, then manufacturing precision is improved, but manufacturing cost increases
Solution Approach 1:
The flexible layers serve multiple functions: the substrate layer provides structural support and electrical connections, the first additive layer with apertures provides component alignment and protection, the second additive layer provides additional alignment and sealing, and the cover layer provides environmental protection. This multi-functionality reduces the need for separate components and assembly steps, lowering manufacturing cost while maintaining precision.
Solution Approach 2:
The invention changes the physical state and properties of the flexible layers to enable cost-effective manufacturing. By using flexible, adhesive layers that can be processed in rolls at high speeds, the system achieves precision manufacturing at lower costs compared to conventional slow, expensive additive manufacturing techniques.
3Adaptability or versatility
If electronic components are integrated into flexible substrates using conventional methods, then component integration is achieved, but production efficiency and cost-effectiveness deteriorate
Solution Approach 1:
The flexible layers with apertures are prepared in advance with pre-defined alignment features and adhesive properties. Electronic components are positioned and aligned using these pre-prepared layers, eliminating the need for time-consuming post-assembly alignment operations. This preliminary preparation enables high-speed roll-to-roll processing while maintaining precise component integration.
Solution Approach 2:
The invention replaces conventional mechanical assembly methods with adhesive bonding and alignment-based integration. The flexible layers use adhesive properties to bond components and layers together, eliminating the need for mechanical fastening, soldering, or complex alignment mechanisms, thereby dramatically improving production efficiency and cost-effectiveness.
4Adaptability or versatility
If electronic components are integrated into flexible substrates using conventional methods, then component integration is achieved, but manufacturing cost increases
Solution Approach 1:
The invention merges multiple functions into integrated flexible layers: structural support, electrical connections, component alignment, component protection, and environmental sealing are all combined in a single multi-layer flexible structure. This consolidation eliminates the need for separate components and assembly operations, reducing manufacturing cost while maintaining versatile component integration capability.
Data Source
AI summary
A flexible laminate electronic device includes a flexible substrate that includes electrical connections between electronic components attached to the flexible substrate. A first flexible additive layer includes apertures, wherein at least one of the one or more electronic components is aligned in one of the apertures. A subsequent flexible additive layer is disposed over the first flexible additive layer and aligned around respective portions of the electronic components protruding above the first flexible additive layer. A flexible cover layer is placed over the subsequent flexible additive layer.