Z-Directed Capacitor Components for PCB Density
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Solution Overview
Problem
Current printed circuit board (PCB) manufacturing faces challenges in achieving high component densities and operating frequencies due to limitations in component insertion and assembly methods, particularly with resistors being embedded between layers, which is time-consuming and difficult to modify.
Innovation Solution
The development of Z-directed capacitive components that can be inserted into PCBs after assembly, featuring insulative bodies with conductive channels and semi-cylindrical metallic sheets, allowing for efficient signal path creation and higher frequency operation without the need for complex layer modifications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If resistors are embedded between layers of PCB by applying resistive material during manufacturing, then component density can be increased, but manufacturing time increases and design changes become difficult
Solution Approach 1:
The mounting holes are pre-formed in the PCB layers during manufacturing, but the capacitive components are not yet inserted. This preliminary preparation allows for faster initial manufacturing while preserving the ability to insert components later, thus reducing overall manufacturing time while maintaining high component density
Solution Approach 2:
The invention transitions from a static PCB structure where all components must be embedded during manufacturing to a dynamic structure that allows post-assembly insertion of capacitive components. This dynamic approach enables design changes and reduces manufacturing time while achieving high component density
2Quantity of substance
If resistors are embedded between layers of PCB by applying resistive material during manufacturing, then component density can be increased, but design flexibility deteriorates
Solution Approach 1:
The invention creates a dynamic PCB structure that allows capacitive components to be inserted after assembly. This enables design changes and updates without requiring complete PCB remanufacturing, thus maintaining high component density while significantly improving design flexibility
Solution Approach 2:
The PCB is segmented into fixed structural layers (with pre-formed mounting holes) and movable functional components (capacitive components that can be inserted later). This segmentation allows the structural integrity to be maintained while enabling flexible component updates and design changes
3Ease of manufacture
If traditional surface mount or through-hole components are used, then manufacturing process is simple, but component density and operating frequency are limited
Solution Approach 1:
The invention transitions from two-dimensional surface mounting to three-dimensional vertical insertion. Capacitive components are inserted vertically into mounting holes that span multiple PCB layers, utilizing the Z-dimension to achieve high component density while maintaining manufacturing simplicity through standardized insertion processes
4Ease of manufacture
If traditional through-hole components are used, then manufacturing process is simple, but operating frequency capability is limited
Solution Approach 1:
The invention uses vertical Z-directed insertion through multi-layer PCBs to create shorter signal paths and reduce parasitic effects compared to traditional surface mount components. This three-dimensional arrangement maintains manufacturing simplicity while enabling higher operating frequencies
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
Enables higher component densities and frequencies of operation by allowing for post-assembly insertion of Z-directed components, simplifying the manufacturing process and enhancing the flexibility of PCB design.
Implementation Method 1
the first and second sheets forming a capacitor
Implementation Method 2
a semi-cylindrical sheet of dielectric material positioned between the first and second metallic sheets
Data Source
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.