Multi-Layer PCB Connector Layout for Spark Gap ESD Protection
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Solution Overview
Problem
Conventional connectors with a spark gap face difficulties in circuit design due to overlapping conductor lines, making it challenging to implement an effective electrostatic discharge (ESD) protection system for connectors with two or more columns.
Innovation Solution
A multi-layer connector structure is introduced, where each layer includes connector holes and spark gaps strategically positioned between connector holes and the ground of a printed circuit board, allowing for effective ESD protection even in complex circuit designs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional connector with a spark gap is used, then ESD protection is provided, but conductor lines overlap causing difficulties in circuit design
Solution Approach 1:
The patent transitions from a single-layer connector design to a multi-layer connector structure. By distributing connector holes across multiple layers (first layer, second layer, third layer, fourth layer) with orthogonal spacing, the design eliminates conductor line overlap issues while maintaining ESD protection through spark gaps between layers.
2Adaptability or versatility
If connector holes are arranged in two or more columns, then connector functionality is improved, but conductor lines must overlap making spark gap implementation difficult
Solution Approach 1:
The patent uses multi-layer stacking to resolve the conflict between multi-column connector functionality and spark gap implementation. Each layer contains connector holes arranged in columns, but the orthogonal spacing between layers prevents conductor line overlap, allowing spark gaps to be effectively implemented between corresponding holes in adjacent layers.
Solution Approach 2:
The connector structure is segmented into multiple independent layers, each handling specific connector holes. This segmentation allows the circuit design to avoid overlapping conductor lines by distributing connections across layers, while spark gaps are implemented between corresponding holes in different layers.
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 multi-layer connector structure effectively prevents damage from electrostatic discharge by ensuring that each connector hole has a corresponding spark gap, thereby enhancing the connector's resistance to ESD and reducing the need for additional ESD reduction components.
Implementation Method 1
An electrostatic discharge (ESD) test for a connector is a test wherein an ESD is applied to a protruding connector pin to examine a circuit board for damage, malfunction, etc.
Implementation Method 2
a spark gap between at least one connector hole of the plurality of connector holes and a ground of a printed circuit board
Data Source
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AI summary
A connector mounted on a printed circuit board includes a first layer including connector holes having an array structure of two or more columns allowing connector pins to be inserted thereinto, a spark gap between connector hole(s) of the plurality of connector holes and a ground of a printed circuit board, and a conductor line having an end connected to the connector hole(s), the conductor line being arranged between the ground of the printed circuit board and the connector hole(s), and a second layer stacked on a surface of the first layer including connector holes orthogonally spaced from and corresponding to the connector holes of the first layer, and a spark gap between a connector hole, among the plurality of connector holes of the second layer, corresponding to the connector hole(s) of the first layer, and a ground of the printed circuit board.