Patterned Power Transmission Lines for Noise Interruption

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Solution Overview

Problem

Conventional differential mode signal power transmission lines in portable electronic devices require common mode filters to interrupt external noise, leading to increased device size, thickness, and manufacturing costs.

Innovation Solution

A circuit board with patterned power transmission lines that generate magnetic fluxes to interrupt external noise, eliminating the need for common mode filters by using dielectric layers and pattern holes to form first and second patterns along which the power transmission lines are wound, effectively blocking electromagnetic interference and electrostatic discharge.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If a common mode filter is added to interrupt external noise, then noise interruption capability is improved, but device area and thickness increase

Engineering Contradiction:

Improveexternal noise interruptionVSAvoiddevice area

Core Design Contradiction:

Object-affected harmful factorsVSArea of stationary object

Solution Approach 1:

The patent merges the common mode filter function directly into the power transmission line structure by forming patterns along pattern holes in dielectric layers. The power transmission line and noise filtering function are combined into a single integrated structure, eliminating the need for separate common mode filter components and reducing overall device area.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The power transmission line is designed to perform multiple functions simultaneously: it transmits power and also provides noise filtering capability through its patterned structure. The same structural elements that conduct power also generate magnetic fluxes to interrupt external noise, making the transmission line universal in its functionality.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Object-affected harmful factors

If a common mode filter is added to interrupt external noise, then noise interruption capability is improved, but device thickness increases

Engineering Contradiction:

Improveexternal noise interruptionVSAvoiddevice thickness

Core Design Contradiction:

Object-affected harmful factorsVSLength of stationary object

Solution Approach 1:

The common mode filter function is nested within the existing power transmission line structure. The patterns are formed along pattern holes that are already present in the dielectric layers, effectively nesting the filtering capability within the existing structural framework without adding external thickness.

Inventive Principle:

Principle #7Nested doll (Nesting)

Solution Approach 2:

The noise filtering function is achieved by utilizing the vertical stacking of dielectric layers and pattern holes rather than adding horizontal extension. The patterns are formed in multiple layers stacked along the thickness direction, allowing noise interruption without significantly increasing overall device thickness.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

3Object-affected harmful factors

If a common mode filter is added to interrupt external noise, then noise interruption capability is improved, but manufacturing cost increases

Engineering Contradiction:

Improveexternal noise interruptionVSAvoidmanufacturing cost

Core Design Contradiction:

Object-affected harmful factorsVSEase of manufacture

Solution Approach 1:

The patent combines the power transmission line fabrication process with the common mode filter formation process. Both structures are formed simultaneously using the same patterning and deposition steps, eliminating the need for separate manufacturing processes and reducing overall manufacturing cost.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The power transmission line structure itself provides the noise filtering function without requiring additional components or processes. The patterned structure automatically generates magnetic fluxes to interrupt noise, making the system self-sufficient and eliminating extra manufacturing steps for adding separate filters.

Inventive Principle:

Principle #25Self-service

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

This solution reduces the size and thickness of portable electronic devices while lowering manufacturing costs by eliminating the need for common mode filters, effectively interrupting external noise through magnetic fluxes generated by the patterned power transmission lines.

Implementation Method 1

magnetic fluxes may be generated in the plurality of patterns when a current is applied to each of the plurality of power transmission lines

Methodology Applied

Scientific EffectMagnetic flux: Magnetic Field

Data Source

PatentUS11109483B2Circuit board and electronic device including same

Publication Date: 2021.08.31 SAMSUNG ELECTRONICS CO LTD

AI summary

An example circuit board includes a plurality of dielectric layers having a plurality of pattern holes; and a plurality of transmission lines formed in the plurality of dielectric layers, and coupled according to the plurality of pattern holes so as to form a plurality of patterns, wherein, when a current is applied to each of the plurality of transmission lines, magnetic flux can be generated in the plurality of patterns.