Conductive Slot Layout for Efficient Wireless-Charging Packages

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Solution Overview

Problem

The existing wireless charging systems for semiconductor devices suffer from inefficiencies in energy transfer, leading to potential energy loss between the charging station and the electronic apparatus.

Innovation Solution

Incorporating a conductive metal slot with specific configurations, such as channels and openings, to shape and enhance the magnetic flux, thereby improving the induction of electric current and increasing charging efficiency by generating an auxiliary magnetic flux.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If a wireless charging system is implemented using electromagnetic induction, then wireless charging capability is achieved, but energy loss increases and charging efficiency decreases

Engineering Contradiction:
Improvecharging efficiencyVSAvoidenergy loss
Core Design Contradiction:
Use of energy by moving objectVSLoss of energy

Solution Approach 1:

A conductive slot is introduced as an intermediary component between the charging station and the electronic apparatus. The conductive slot generates an auxiliary magnetic flux that mediates the electromagnetic induction process, improving energy transfer efficiency and reducing energy loss during wireless charging

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent changes the magnetic flux parameters by introducing a conductive slot that generates an auxiliary magnetic flux. This parameter change optimizes the electromagnetic induction process, increasing charging efficiency and reducing energy loss by enhancing the magnetic field coupling between transmitter and receiver

Inventive Principle:
Principle #35Parameter changes

2Power

If conventional wireless charging is used, then wireless power transfer is enabled, but power consumption increases due to inefficiency

Engineering Contradiction:
Improvepower transfer efficiencyVSAvoidpower consumption
Core Design Contradiction:
PowerVSUse of energy by moving object

Solution Approach 1:

The conductive slot serves as a mediator that improves power transfer efficiency by generating an auxiliary magnetic flux. This intermediary component reduces the power consumption associated with inefficient wireless charging by optimizing the electromagnetic energy transfer process

Inventive Principle:
Principle #24Intermediary (Mediator)

3Ease of operation

If electromagnetic induction wireless charging is implemented, then wireless charging function is provided, but heat emission increases due to energy loss

Engineering Contradiction:
Improvewireless charging functionVSAvoidheat emission
Core Design Contradiction:
Ease of operationVSObject-generated harmful factors

Solution Approach 1:

The conductive slot acts as an intermediary that reduces heat emission by improving the efficiency of the wireless charging process. By generating an auxiliary magnetic flux, it minimizes energy loss that would otherwise be converted into harmful heat during charging

Inventive Principle:
Principle #24Intermediary (Mediator)

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 conductive metal slot enhances charging efficiency by up to 30% or more, reducing unnecessary power consumption and heat emission during the charging process.

Implementation Method 1

In the wireless charging system, an electromagnetic field is produced in a charging station where energy is transferred to the electronic apparatus. An induction coil in the electronic apparatus takes power from the electromagnetic field and converts it back into electric current to charge the battery.

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Implementation Method 2

Incorporating a conductive metal slot with specific configurations, such as channels and openings, to shape and enhance the magnetic flux, thereby improving the induction of electric current

Methodology Applied
Scientific EffectMagnetic flux: Magnetic Field

Data Source

PatentUS11837517B2Packaged semiconductor devices with wireless charging means
Publication Date: 2023.12.05 TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD
  • US11837517B2 patent drawing
  • US11837517B2 patent drawing
  • US11837517B2 patent drawing

AI summary

A semiconductor device package is provided. The semiconductor device package includes a semiconductor device, a molding material surrounding the semiconductor device, and a conductive slot positioned over the molding material. The conductive slot has an opening and at least two channels connecting the opening to the edges of the conductive slot, and at least two of the channels extend in different directions.