Stacked Insulator Passive Components for Wireless Device Miniaturization

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Solution Overview

Problem

There is a need for smaller passive components in wireless communication devices, as conventional components occupy significant space and hinder miniaturization efforts.

Innovation Solution

The use of stacked insulators with vias and conductive layers to create compact inductors and capacitors, where vias extend through multiple insulators, allowing for the formation of coil shapes and dielectric layers to achieve miniaturized passive components.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If conventional passive components are used, then the device can function properly, but the device size becomes large

Engineering Contradiction:
Improvepassive component sizeVSAvoidcomponent functionality
Core Design Contradiction:
Volume of moving objectVSReliability

Solution Approach 1:

The patent transitions from planar passive components to three-dimensional stacked insulator structures. Multiple insulators are stacked vertically with conductive elements extending through them, creating vertical vias and coil shapes that utilize the third dimension (height) to reduce the horizontal footprint of the passive components while maintaining their electrical functionality.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The patent embeds conductive elements, vias, and coil structures within and through the stacked insulators. The conductive layers are nested between insulator layers, and vias pass through multiple insulators, creating a compact nested configuration where functional elements are integrated within the insulator stack rather than being separate components.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Volume of moving object

If passive components are miniaturized, then device size is reduced, but manufacturing complexity increases

Engineering Contradiction:
Improvepassive component sizeVSAvoidstacked insulator structure
Core Design Contradiction:
Volume of moving objectVSDevice complexity

Solution Approach 1:

The patent divides the passive component into multiple discrete insulator segments stacked together, with conductive elements distributed across different levels. This segmentation allows for modular construction where each insulator layer can be prepared and positioned separately, then assembled into the final stacked configuration, managing complexity through systematic division.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The stacked insulator structure serves multiple functions simultaneously: providing electrical insulation, forming mechanical support, creating vertical vias for connectivity, and enabling coil shape formation for inductors. The conductive elements embedded within the insulators perform both structural and electrical functions, reducing the need for separate components.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentEP3459174B1Passive components implemented on a plurality of stacked insulators
Publication Date: 2020.07.15 QUALCOMM INC
  • EP3459174B1 patent drawingFigure 1A~1B
  • EP3459174B1 patent drawingFigure 2A~2B
  • EP3459174B1 patent drawingFigure 3A~3B

AI summary

The present disclosure provides integrated circuit apparatuses and methods for manufacturing integrated circuit apparatuses. An integrated circuit apparatus may include a first insulator (201), the first insulator being substantially planar and having a first top surface (201t) and a first bottom surface (201b) opposite the first top surface, a first conductor (211, 212) disposed on the first insulator, a second insulator (202), the second insulator being substantially planar and having a second top surface (202t) and a second bottom surface (202b) opposite the second top surface, a second conductor disposed on the second insulator (221, 222), and a dielectric layer (251) disposed between the first bottom conductor (212) of the first insulator (201) and the second top conductor (221) of the second insulator (202).