Z-Directed PCB Capacitors for High Density Integration
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Solution Overview
Problem
Current methods for increasing component densities and frequencies of operation in printed circuit boards are time-consuming and difficult to modify, especially when embedding resistive elements between layers, which limits the flexibility and efficiency of circuit design.
Innovation Solution
The introduction of Z-directed components that can be inserted into a printed circuit board after assembly, allowing for the integration of various electronic components such as resistors, capacitors, and transistors within the board's structure, enabling higher component densities and frequencies of operation while simplifying the manufacturing process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If resistive elements are embedded between layers during PCB manufacturing, then component density increases, but manufacturing complexity and time increase
Solution Approach 1:
The invention divides the resistive element into a separate modular component that can be independently manufactured and then inserted into the PCB. This segmentation allows the resistive element to be produced separately from the PCB layers, eliminating the need for complex in-line embedding processes during PCB manufacturing while still achieving high component density when the separate component is integrated into the board.
Solution Approach 2:
The invention transitions from planar embedding of resistive elements within PCB layers to three-dimensional insertion of modular components into dedicated cavities or holes in the PCB. This dimensional change allows resistive elements to be added vertically rather than horizontally, increasing component density without requiring complex modifications to the layered PCB manufacturing process.
2Reliability
If resistive elements are embedded between layers during PCB manufacturing, then integration is achieved, but flexibility to implement changes decreases
Solution Approach 1:
By separating the resistive element from the PCB structure and making it a distinct insertable component, the invention enables independent replacement, upgrading, or modification of the resistive element without affecting the PCB itself. This modular approach maintains reliable integration through dedicated connection interfaces while providing flexibility to change components after manufacturing.
Solution Approach 2:
The invention transforms the static, fixed integration of resistive elements during manufacturing into a dynamic system where components can be inserted, removed, or replaced after manufacturing. The insertable component design with connection interfaces enables the system to adapt to changing requirements while maintaining reliable electrical connections.
3Ease of manufacture
If traditional surface mount or through-hole components are used, then manufacturing is simple, but component density and operating frequency are limited
Solution Approach 1:
The invention moves from two-dimensional surface mounting or through-hole insertion to three-dimensional integration by placing modular components containing resistive elements into cavities or holes that extend through or into the PCB layers. This vertical integration increases component density by utilizing the third dimension while maintaining relatively simple manufacturing processes for both the PCB and the insertable components.
Solution Approach 2:
The invention implements nesting by placing modular components containing resistive elements inside cavities or holes within the PCB structure. This nested arrangement allows multiple components to be integrated within the volume of the PCB without requiring additional surface area, thereby increasing component density while keeping the overall form factor compact and manufacturing straightforward.
Data Source
Figure 1~3F
Figure 4A~5H
Figure 6A~7B
AI summary
A Z-directed capacitor component for insertion into a printed circuit board while allowing electrical connection to internal conductive planes contained within the PCB. In one embodiment the Z-directed capacitor component utilizes semi-cylindrical metallic sheets. In another embodiment, stack annular metallic disks are used. The Z-directed capacitor component mounts within the thickness of the PCB allowing other components to be mounted over it. The body may contain one or more conductors and may include one or more surface channels or wells extending along at least a portion of the length of the body. Methods for mounting Z-directed components are also provided.