Multi-Channel Optical Assembly With Pressing Alignment Structure

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Solution Overview

Problem

Current optical modules face challenges in optical power, space management, thermal management, insertion loss, and manufacturing yield, particularly due to misalignment issues caused by insufficient bonding strength leading to signal loss.

Innovation Solution

A multi-channel optical assembly with a pressing component that aligns and presses against the optical communication chip, using adhesives with matched thermal expansion coefficients to maintain alignment and reduce stress, and includes an intermediate component or direct pressing to prevent signal loss.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If bonding adhesive is used to couple optical components, then assembly is simplified, but bonding strength is insufficient leading to misalignment

Engineering Contradiction:

Improveassembly simplicityVSAvoidbonding strength

Core Design Contradiction:

Ease of manufactureVSReliability

Solution Approach 1:

The pressing component merges mechanical pressing function with alignment maintenance function into a single integrated structure, eliminating the need for separate alignment fixtures while ensuring reliable optical coupling between components

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The pressing component acts as an intermediary element between the optical coupling end portion and the optical communication chip, providing mechanical pressure to enhance bonding strength and maintain alignment without requiring modification of the adhesive itself

Inventive Principle:

Principle #24Intermediary (Mediator)

2Stability of the object's composition

If thermal expansion coefficients of adhesive are matched to components, then thermal stability is improved, but adhesive selection becomes more difficult

Engineering Contradiction:

Improvethermal stabilityVSAvoidadhesive selection difficulty

Core Design Contradiction:

Stability of the object's compositionVSEase of manufacture

Solution Approach 1:

The pressing component introduces a mechanical parameter (applied pressure) to compensate for thermal expansion mismatches, allowing the use of adhesives with broader thermal expansion coefficient ranges while maintaining alignment stability across temperature variations

Inventive Principle:

Principle #35Parameter changes

3Reliability

If pressing component is added to maintain alignment, then misalignment is prevented, but device complexity increases

Engineering Contradiction:

Improvealignment maintenanceVSAvoidstructure complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The pressing component is designed to perform multiple functions simultaneously: applying mechanical pressure to enhance bonding, maintaining alignment between optical components, and compensating for thermal expansion differences, thereby reducing the need for additional specialized components

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS20250370197A1Multi-channel optical assembly including component for pressing against optical communication chip and optical transmission unit

Publication Date: 2025.12.04 GLOBAL TECHNOLOGY INC

AI summary

A multi-channel optical assembly includes an optical communication chip, an optical transmission unit and a pressing component. The optical transmission unit includes an optical coupling end portion optically coupled to the optical communication chip. The pressing component presses against the optical communication chip and the optical coupling end portion of the optical transmission unit. The pressing component has an extension portion. The extension portion protrudes from an edge of the optical coupling end portion. The extension portion presses against the optical communication chip.