PCB Module Stacking Mechanism with Integrated Ground
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Solution Overview
Problem
Conventional techniques for positioning and electrically coupling multiple electronic components on printed circuit boards (PCBs) are limited by space constraints, making it difficult to accommodate increasing complexity and density of devices.
Innovation Solution
A module stacking mechanism with a first mounting hole and radiating projections, along with a second mounting hole, allows for the positioning and electrical coupling of top and bottom IC modules above and below the PCB, respectively, using a single grounding hole, thereby increasing component density without requiring additional mounting holes or space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If conventional techniques are used to position electronic components on PCBs, then the PCB can be manufactured with standard methods, but the component density is limited by the finite space available on the PCB surface
Solution Approach 1:
The patent transitions from two-dimensional surface mounting to three-dimensional stacking by positioning IC modules above and below the PCB surface. The module stacking mechanism enables vertical arrangement of multiple IC modules along the Z-axis, effectively utilizing the third dimension to increase component density without expanding the PCB footprint.
2Quantity of substance
If additional mounting holes are added to accommodate multiple IC modules, then more components can be positioned, but the PCB complexity and manufacturing difficulty increase
Solution Approach 1:
The patent combines multiple grounding and mounting functions into a single integrated grounding structure. The grounding structure includes multiple grounding contacts that simultaneously provide electrical connection and mechanical support for multiple IC modules, eliminating the need for separate mounting holes for each module and reducing overall PCB complexity.
Solution Approach 2:
The grounding structure serves multiple functions simultaneously: it provides electrical grounding for multiple IC modules, acts as a mechanical support structure, and enables positioning of modules above and below the PCB. This multi-functional design reduces the number of separate components and mounting features required.
3Reliability
If multiple separate grounding structures are used for top and bottom IC modules, then each module can be independently grounded, but the manufacturing process becomes more complex and time-consuming
Solution Approach 1:
The patent merges separate grounding structures for top and bottom IC modules into a single integrated grounding structure. This unified structure provides simultaneous electrical connection for multiple modules through multiple grounding contacts, reducing assembly steps and improving manufacturing efficiency while maintaining reliable grounding for all modules.
Data Source
AI summary
Printed circuit board (PCB) structures and methods of assembling them are described herein. In some embodiments, a PCB structure may include a first mounting hole; first, second, and third projections radiating from the first mounting hole; and a second mounting hole adjacent to the third projection. The first and second mounting holes located at opposite ends of the third projection. The second mounting hole to cause an electrical coupling of a bottom integrated circuit (IC) module to a connection structure included in a PCB, and the first mounting hole, the first projection, and the second projection to cause positioning of a top IC module above the bottom IC module and electrical coupling of the top IC module to the connection structure.