Imaging Device Vent Sealing via Bonding Member

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Solution Overview

Problem

In the manufacturing of imaging devices, vents for releasing thermally expanded air can lead to dust or other contaminants entering the device, requiring an additional step to block the vent, which increases the number of manufacturing steps.

Innovation Solution

A vent is integrated into the design of the imaging device, where it is blocked by a member that bonds the unit and frame together, allowing for the vent to be sealed without adding extra manufacturing steps by using a tapered shape, light shielding resin, and strategic placement of the vent and bonding members.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a vent is provided to release thermally expanded air, then air release function is improved, but dust entry risk increases

Engineering Contradiction:
Improveair release functionVSAvoiddust entry
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The bonding member is designed in advance with a structure that automatically blocks the vent after bonding. The protrusion or extended portion of the bonding member is positioned to cover the vent opening, so that the blocking action occurs as an inherent part of the bonding process rather than requiring a separate subsequent step.

Inventive Principle:
Principle #10Preliminary action

2Object-affected harmful factors

If the vent is blocked by an independent step, then dust entry is prevented, but manufacturing steps increase

Engineering Contradiction:
Improvedust entry preventionVSAvoidnumber of manufacturing steps
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The vent blocking function is merged with the bonding operation. The bonding member serves dual purposes: it bonds the components together and simultaneously blocks the vent. This integration eliminates the need for a separate vent blocking step, reducing manufacturing complexity while maintaining dust prevention.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The bonding member is designed to perform multiple functions: structural bonding and vent blocking. By making the bonding member universal for both purposes, the patent eliminates the need for separate components or steps for each function, thereby reducing the overall number of manufacturing steps.

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

3Object-affected harmful factors

If the vent is blocked by adhesive dripping, then dust entry is prevented, but manufacturing precision decreases

Engineering Contradiction:
Improvedust entry preventionVSAvoidvent blocking precision
Core Design Contradiction:
Object-affected harmful factorsVSManufacturing precision

Solution Approach 1:

The patent replaces the adhesive dripping method with a mechanical blocking structure. Instead of relying on viscous adhesive material to block the vent, a solid structural feature (protrusion or extended portion of the bonding member) physically covers the vent opening, providing more precise and reliable blocking without the variability associated with adhesive application.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

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 approach effectively seals the vent without increasing the number of manufacturing steps, preventing dust and contaminants from entering the device and improving the reliability and efficiency of the manufacturing process.

Implementation Method 1

a vent blocked by a bonding member that bonds the unit and the frame together

Methodology Applied
Scientific EffectAdhesion: Adhesive

Implementation Method 2

The vent can have a tapered shape

Methodology Applied
Scientific EffectTapered geometry: Geometry

Data Source

PatentUS10356295B2Imaging device, manufacturing device, and manufacturing method
Publication Date: 2019.07.16 SONY GROUP CORP
  • US10356295B2 patent drawing
  • US10356295B2 patent drawing
  • US10356295B2 patent drawing

AI summary

The present technology relates to an imaging device, a manufacturing device, and a manufacturing method that enable a reliable manufacturing device to be manufactured without an increase in the number of manufacturing steps. A substrate on which an image sensor is mounted, a frame that fixes an infrared cut filter (IRCF), and a unit including a lens are included. The image sensor is sealed by the substrate, the IRCF, and the frame. A vent connected to a space in which the image sensor is sealed is provided in a part of the frame. The vent is blocked by a member that bonds the unit and the frame together. The vent is provided in the frame, in a predetermined shape, and in a vertical direction with respect to a surface to which the member is applied. The present technology can be applied to the imaging device.