Electronic Module Suckable Region Design for Stable Vacuum Mounting

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing electronic modules with built-in and surface mount components face challenges in reducing size and achieving a low profile, as the protective layer can hinder vacuum suction due to unevenness and height differences, leading to instability during mounting.

Innovation Solution

The electronic module design includes a suckable region on the substrate's surface without a protective layer, with built-in components positioned under this region to ensure a flat and stable surface for vacuum suction, allowing the center of gravity to be within the suckable area, enabling a low profile and stable suction.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a protective layer is formed on the front surface of the substrate to protect electronic components, then the electronic components are protected, but the profile of the electronic module increases and vacuum suction becomes difficult

Engineering Contradiction:

Improveprotection of electronic componentsVSAvoidprofile of electronic module

Core Design Contradiction:

ReliabilityVSLength of stationary object

Solution Approach 1:

The protective layer is segmented into two distinct regions: a first region formed only in the suckable region to enable vacuum suction, and a second region formed in non-suckable regions to provide protection. This segmentation allows the module to achieve both low profile in the suckable region and component protection in other regions.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The protective layer is applied selectively with different coverage in different regions. The first protective layer is locally applied only to the suckable region where vacuum suction is required, while the second protective layer is applied to non-suckable regions. This local quality approach ensures that the profile remains low where needed while providing protection where required.

Inventive Principle:

Principle #3Local quality

2Ease of operation

If a protective layer is formed on the front surface to enable vacuum suction, then vacuum suction is enabled, but unevenness occurs on the surface due to built-in components of different heights

Engineering Contradiction:

Improvevacuum suction capabilityVSAvoidflatness of protective layer surface

Core Design Contradiction:

Ease of operationVSManufacturing precision

Solution Approach 1:

The protective layer is divided into a first protective layer in the suckable region and a second protective layer in non-suckable regions. The first protective layer is formed to provide a uniformly flat surface suitable for vacuum suction, while the second protective layer accommodates components of varying heights. This segmentation resolves the conflict between enabling suction and maintaining surface flatness.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Instead of forming a single uniform protective layer that would create unevenness, the patent inverts the approach by forming a protective layer structure where the suckable region has a specially controlled flat surface while other regions can have varying heights to accommodate different component heights.

Inventive Principle:

Principle #13The other way round (Inversion)

3Length of stationary object

If the profile of the electronic module is reduced, then size reduction is achieved, but vacuum suction becomes unstable or impossible

Engineering Contradiction:

Improveprofile of electronic moduleVSAvoidvacuum suction stability

Core Design Contradiction:

Length of stationary objectVSEase of operation

Solution Approach 1:

The module structure is segmented into a suckable region with a low profile and a non-suckable region with higher components. The suckable region is specifically designed with a flat surface and appropriate thickness to enable stable vacuum suction, while the non-suckable region can accommodate taller components. This segmentation allows the module to achieve both low profile and stable suction.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The first protective layer acts as an intermediary structure in the suckable region, providing a uniformly flat surface that enables vacuum suction while maintaining a low overall profile. This intermediary layer mediates between the requirement for low profile and the requirement for stable suction capability.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS9084365B2Electronic module

Publication Date: 2015.07.14 MURATA MFG CO LTD

AI summary

An electronic module includes a substrate, a built-in electronic component and a surface mount electronic component. A suckable region is provided on a front surface of the substrate. When viewed in a see-through manner in a direction perpendicular or substantially perpendicular to the front surface of the substrate, the suckable region is inside of a region in which one built-in electronic component is built in and a center of gravity of the electronic module is located inside of the suckable region. A protective layer is not provided on the front surface of the substrate on which the surface mount electronic component is mounted.