Application-Specific Electronics Packaging for Reel-to-Reel MID Integration
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Solution Overview
Problem
Current manufacturing processes for molded interconnect devices (MIDs) are inefficient in integrating electronics into smaller spaces with higher functionality, higher speeds, lower power consumption, and reduced heat generation, while also being cost-effective.
Innovation Solution
The Application Specific Electronics Packaging (ASEP) system employs a reel-to-reel manufacturing process that involves depositing seed layer traces on a substrate before electroplating, allowing for the integration of various components like connectors, sensors, and microprocessors, using a continuous flow process that includes stamping a carrier, molding a plastic substrate, and electroplating to form electronic circuit traces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional batch manufacturing processes are used for MIDs, then manufacturing precision and quality control are maintained, but productivity is low and manufacturing cost is high
Solution Approach 1:
The patent implements a continuous reel-to-reel manufacturing process where substrates are continuously fed through molding, laser activation, and metallization stages without batch interruptions. This continuous flow approach dramatically increases productivity while maintaining consistent quality through automated process control.
Solution Approach 2:
The patent replaces traditional mechanical batch processing with automated laser-based activation and electroless plating systems. The laser directly activates plastic material in a continuous stream, and electroless plating automatically deposits metal traces without mechanical contact, reducing complexity while increasing speed.
2Adaptability or versatility
If more electronic components are integrated into smaller spaces, then device functionality increases, but manufacturing precision requirements increase
Solution Approach 1:
The patent uses laser activation to selectively modify only the specific areas of plastic substrate where circuit traces are needed. The laser precisely activates the plastic material at designated locations, and the electroless plating process then deposits metal only in those activated zones, enabling high-precision trace formation for complex multi-component devices.
Solution Approach 2:
The patent changes the physical-chemical parameters of the plastic substrate through controlled laser activation. By adjusting laser power, speed, and wavelength, the process creates specific activated zones with enhanced metal deposition properties, enabling precise control over trace formation for high-density component integration.
3Ease of manufacture
If electroless plating is used for trace formation, then manufacturing cost is reduced, but water usage increases
Solution Approach 1:
The patent implements water recovery and reuse systems in the electroless plating process. Wastewater from the plating baths is collected, treated, and recycled back into the process, significantly reducing overall water consumption while maintaining the cost-effectiveness of the electroless plating method.
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 approach enables faster, more cost-effective production of complex electronic devices with improved conductivity and reduced water usage, allowing for the integration of multiple features in smaller form factors with enhanced performance.
Implementation Method 1
depositing a seed layer of traces that connects to an internal buss formed by the carrier, electroplating the seed layer of traces to form electronic circuit traces
Data Source
AI summary
Depicted embodiments are directed to an Application Specific Electronics Packaging (“ASEP”) system, which enables the manufacture of additional products using reel to reel (68a, 68b) manufacturing processes as opposed to the “batch” processes used to currently manufacture electronic products and MIDs. Through certain ASEP embodiments, it is possible to integrate connectors, sensors, LEDs, thermal management, antennas, RFID devices, microprocessors, memory, impedance control, and multi-layer functionality directly into a product.