Multi-Layer Shielding Device for EMI and ESD Protection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional methods for preventing electrostatic discharge (ESD) and electromagnetic interference (EMI) are space-consuming and expensive, requiring extensive protection circuits and shielding materials.
Innovation Solution
A multi-layer shielding device comprising an anti-ESD layer with an anti-static agent and shaping material, a conductive layer with conductive material and ferromagnetic components, and an EMI blocking layer with high permeability material and conductive components, laminated together to effectively block ESD and EMI while occupying less space and being more cost-effective.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional protection circuits and EMI shielding materials are used, then ESD and EMI protection is achieved, but space consumption increases and cost increases
Solution Approach 1:
The patent combines anti-ESD and EMI blocking functions into a single integrated shielding device with multiple layers. The anti-ESD layer, conductive layer, and EMI blocking layer work together simultaneously to provide both protection functions, eliminating the need for separate protection circuits and shielding materials, thus reducing space consumption while maintaining reliability
Solution Approach 2:
The shielding device uses composite material structure with at least three distinct layers: anti-ESD layer containing anti-static agent, conductive layer with conductive material, and EMI blocking layer with high permeability material. This composite structure enables multiple protection functions in a compact form factor
2Reliability
If conventional protection circuits and EMI shielding materials are used, then ESD and EMI protection is achieved, but cost increases
Solution Approach 1:
By merging anti-ESD and EMI blocking into a single integrated device, the patent reduces the total number of components needed, simplifying assembly and reducing manufacturing costs while maintaining comprehensive protection functionality
Solution Approach 2:
The integrated shielding device performs multiple functions (ESD protection and EMI blocking) simultaneously, replacing what would traditionally require separate protection circuits and shielding materials, thereby reducing overall system cost
3Reliability
If conventional EMI shielding materials are used, then EMI blocking is achieved, but positioning at noise sources becomes difficult
Solution Approach 1:
The shielding device uses flexible adhesive films that can be easily applied directly to noise sources on circuit boards. The thin-film structure allows conformal attachment to various surfaces, enabling easy positioning at noise sources without complex installation procedures
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 solution provides reliable ESD and EMI protection, allowing for easier positioning at noise sources, reducing space and cost, and increasing productivity with enhanced reliability and effectiveness in blocking EMI waves and sustaining high electric discharges.
Implementation Method 1
an anti-ESD layer comprising an anti-static agent and a first shaping material
Implementation Method 2
an EMI blocking layer comprising a high permeability material, a third shaping material and a second conductive material
Implementation Method 3
a conductive layer comprising a first conductive material, and a second shaping material
Data Source
AI summary
A shielding device configured to provide EMI and ESD protection includes an anti-ESD layer, a conductive layer, and an EMI blocking layer attached to each other in sequence. In addition, a supporting layer can be optionally attached to the EMI blocking layer to increase the strength of the shielding device.