PCB-Based Connector Design for High-Speed Signal Transmission
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Solution Overview
Problem
Conventional board-to-board connectors with plastic supports and metal pins face design space limitations, high production costs, and inefficient high-speed signal transmission due to large parasitic parameters and restricted pin arrangements.
Innovation Solution
A method using a customized PCB as a connector with via holes and soldering pads on both sides to accommodate functional boards, allowing for flexible pin arrangements and reduced area usage, enabling stable high-speed signal transmission and cost-effective production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional board-to-board connectors use plastic supports and metal pins with straight single-row or double-row arrangements, then the connector structure is simple and easy to manufacture, but the design space is limited and production cost is high
Solution Approach 1:
The patent transitions from traditional straight single-row or double-row pin arrangements to a two-dimensional array arrangement on PCB boards. This dimensional change allows pins to be distributed across both sides of the connector, significantly expanding design space and allowing more flexible layout options while maintaining structural simplicity through standard PCB fabrication processes
Solution Approach 2:
The PCB board serves multiple functions simultaneously: it acts as the connector body, provides the mounting substrate for pins, enables signal transmission pathways, and allows element arrangement on both sides. This multi-functionality reduces the need for separate structural components, lowering production cost while increasing design flexibility
2Ease of manufacture
If board-edge half-hole connection method is used to connect two PCBs, then production cost is reduced, but elements are only allowed to be arranged on one side resulting in large connector area and large parasitic parameters
Solution Approach 1:
The invention extends the connection interface from a single-sided board-edge half-hole configuration to a two-sided PCB configuration. By utilizing both sides of the PCB for element arrangement, the connector area is reduced while maintaining cost-effective manufacturing through standard PCB processes. The via holes provide transmission pathways through the board, enabling compact design
3Ease of manufacture
If conventional connectors use large connector area with elements arranged on one side, then manufacturing is simple, but parasitic parameters are large affecting high-speed signal transmission
Solution Approach 1:
By arranging elements on both sides of the PCB and using via holes for signal transmission, the patent reduces the connector area while maintaining manufacturing simplicity through standard PCB fabrication. The reduced area directly lowers parasitic parameters, enabling stable high-speed signal transmission while keeping the manufacturing process straightforward
Solution Approach 2:
The patent changes the geometric parameters of the connector by reducing area through two-sided element arrangement. This parameter change directly impacts parasitic parameters (inductance, capacitance, resistance) by minimizing current path lengths and reducing loop areas, thereby improving high-speed signal transmission while maintaining ease of manufacture through conventional PCB processes
Data Source
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AI summary
A preparation method for a connector, an electronic device, a connector and an application thereof. The preparation method comprising: step 100: preparing a PCB having a shape matched with the shape and structure of functional boards needing to be connected, and forming via holes in the PCB, wherein the via holes correspond to the positions of soldering pads of the functional boards; step 200: preparing soldering pads for connecting the functional boards on the PCB, wherein the soldering pads are arranged in the via holes for communicating the functional boards on both sides of the PCB. The present invention provides a connector using a PCB as a carrier. The connector can be prepared into any desired shapes. The number of pins is large and the occupied area is small. Through designing the soldering pads and the spacing, a stable high-speed signal transmission is achieved. The elements are allowed to be arranged on both sides of the PCB such that the cost is greatly lowered.