Resin Multilayer Substrate with Mixed Connection Terminals
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Solution Overview
Problem
Existing resin multilayer substrates face challenges in connecting connectors to a circuit board without applying undesirable force, leading to potential detachment of already connected connectors during the connection process, especially when multiple connectors are involved.
Innovation Solution
The resin multilayer substrate design includes a substrate main body with multiple wiring portions connected by a connecting portion, featuring first, second, and third external connection terminals, where at least one terminal is connected via a connector on the surface and another via a conductor on the surface, with an auxiliary mounting conductor facilitating direct connection to the circuit board, enhancing connection reliability and flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If all external connection terminals are connectors, then connection flexibility is improved, but connection reliability deteriorates due to potential detachment during mounting
Solution Approach 1:
The patent applies different connection terminal types at different locations: connectors are used at specific positions (e.g., first and third wiring portions) while conductor-based terminals are used at others (e.g., second wiring portion). This local differentiation allows the system to maintain flexibility where connectors are needed while ensuring reliability where direct conductor connections provide stability, thus resolving the contradiction between adaptability and reliability.
2Manufacturing precision
If connectors are connected one by one, then connection precision is improved, but ease of operation deteriorates due to complex mounting process
Solution Approach 1:
The patent segments the external connection terminals into different types (connectors and conductors) positioned at different wiring portions. This segmentation allows the mounting process to be divided into distinct stages: conductor-based terminals can be connected first to establish stable anchor points, followed by connector-based terminals. This reduces the complexity of simultaneous multi-connector alignment while maintaining connection precision through the staged approach.
3Ease of operation
If force is applied to bring unconnected connectors close to circuit board, then ease of operation is improved, but reliability deteriorates due to potential detachment of already connected connectors
Solution Approach 1:
The patent implements preliminary action by having conductor-based external connection terminals connected first to the circuit board before connecting the connector-based terminals. These pre-connected conductors serve as stable anchor points that prevent the substrate from moving or rotating during subsequent connector attachment. This preliminary stabilization eliminates the need to apply force to bring connectors close, as the substrate is already positioned correctly, thus avoiding detachment risks while maintaining ease of operation.
Data Source
AI summary
A resin multilayer substrate includes a substrate main body including first, second, and third wiring portions connected to one another by a connecting portion. First, second and third external connection terminals are respectively included in the first, second and third wiring portions. The first external connection terminal includes a conductor exposed at a surface of the substrate main body. The second and third external connection terminals include connectors mounted on conductors on the surface of the substrate main body. An auxiliary mounting conductor is disposed between the first external connection terminal and the second and third external connection terminals on the surface of the substrate main body.