Internal Moisture-Resistant Coating for Electronic Device Assembly
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Solution Overview
Problem
Electronic devices face challenges in maintaining internal moisture resistance, leading to potential damage from exposure to moisture, which existing assembly systems fail to adequately address.
Innovation Solution
A system incorporating a coating element that applies a moisture-resistant coating to internal surfaces of electronic devices using techniques such as molecular vapor deposition or chemical vapor deposition, along with a masking element to prevent coating on sensitive areas, and a material removal element to ensure precise application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a moisture-resistant coating is applied to internal surfaces of electronic devices, then protection against moisture ingress and corrosion is improved, but the complexity of the assembly system increases due to integration of coating elements
Solution Approach 1:
The patent combines the coating application function with the existing assembly system by integrating a coating element that applies moisture-resistant coating to internal surfaces during the assembly process. This merging approach allows the coating application to be performed within the existing assembly workflow, reducing the need for separate coating facilities and minimizing overall system complexity while still providing reliable moisture protection.
Solution Approach 2:
The coating is applied to internal surfaces before final assembly is completed, allowing the coating to be in place before components are enclosed. This preliminary action ensures that moisture-resistant protection is established early in the assembly process, preventing moisture ingress from the outset while allowing subsequent assembly steps to proceed without additional complexity.
2Reliability
If a moisture-resistant coating is applied to internal surfaces, then protection against moisture is improved, but the manufacturing process complexity increases
Solution Approach 1:
The coating element is designed to work with various types of electronic device assemblies and can apply different types of moisture-resistant coatings. This multi-functionality allows the same manufacturing process to be used across different product lines and assembly configurations, simplifying the overall manufacturing approach while providing reliable moisture protection.
Solution Approach 2:
The patent employs vapor deposition or chemical vapor deposition processes to apply the moisture-resistant coating, replacing traditional mechanical coating methods. This substitution enables more precise and uniform coating application on complex internal surfaces, improving manufacturing consistency and reliability while the automated process integration maintains ease of manufacture.
3Reliability
If coating is applied to all internal surfaces, then moisture protection is improved, but interference with electrical connections and heat transfer may occur
Solution Approach 1:
The coating application process is designed to apply moisture-resistant coating selectively to specific internal surfaces that require protection, while excluding areas where electrical connections or heat transfer occur. This local quality approach ensures that coating is applied only where needed for moisture protection, avoiding interference with functional areas and maintaining both reliability and performance.
Solution Approach 2:
The patent uses masking techniques or selective coating application methods that act as intermediaries to prevent coating material from reaching sensitive areas. These intermediaries allow the coating process to proceed while protecting electrical connections and heat transfer surfaces from coating interference, thus maintaining both moisture protection and functional performance.
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 system effectively prevents moisture penetration, reducing the risk of electrical shorting and corrosion, with quantifiable metrics like water vapor transfer rate and contact angle demonstrating the coating's hydrophobicity, ensuring the internal components remain protected.
Implementation Method 1
A system incorporating a coating element that applies a moisture-resistant coating to internal surfaces of electronic devices using techniques such as molecular vapor deposition or chemical vapor deposition
Implementation Method 2
A system incorporating a coating element that applies a moisture-resistant coating to internal surfaces of electronic devices using techniques such as molecular vapor deposition or chemical vapor deposition
Implementation Method 3
with quantifiable metrics like water vapor transfer rates and contact angles indicating high hydrophobicity
Data Source
AI summary
A system for assembling electronic devices includes at least one coating element for applying a moisture-resistant coating to surfaces of a device under assembly, or an electronic device under assembly. As components and one or more moisture-resistant coatings are added to the electronic device under assembly to form a finished electronic device, at least one surface on which the coating resides and, thus, at least a portion of the coating itself, is located internally within the finished electronic device. Methods for assembling electronic devices that include internally confined moisture-resistant coatings are also disclosed.