Optical Component Conductive Trace Layout for Low-Loss Damage Detection

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Solution Overview

Problem

Conductive traces in optical modules are used to detect damage to the active region, but they are not effective in addressing the technical problems and challenges, such as the challenges of the optical modules, which are not effective in addressing the technical challenges and difficulties in the optical components.

Innovation Solution

The optical component comprises a conductive trace with parallel zigzag legs on the active region, such as a lens or flat optics metasurface, to detect damage while minimizing light transmission loss.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a conductive trace is placed on the active region to detect damage, then damage detection capability is improved, but light transmission loss increases

Engineering Contradiction:
Improvedamage detection capabilityVSAvoidlight transmission loss
Core Design Contradiction:
ReliabilityVSLoss of energy

Solution Approach 1:

The conductive trace is divided into multiple parallel zigzag legs instead of a single continuous trace. This segmentation reduces the overall coverage area of the conductive material while maintaining damage detection capability through the distributed leg structure, thereby reducing light transmission loss.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The conductive trace uses a zigzag pattern that extends in multiple directions rather than a simple linear or circular pattern. This multi-dimensional arrangement allows the trace to cover more potential damage areas while using less total conductive material, balancing detection effectiveness with light transmission requirements.

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

2Measurement precision

If the conductive trace covers a larger area to improve damage detection, then detection effectiveness is improved, but light transmission loss increases

Engineering Contradiction:
Improvedamage detection effectivenessVSAvoidconductive trace coverage area
Core Design Contradiction:
Measurement precisionVSArea of stationary object

Solution Approach 1:

The trace is segmented into multiple parallel legs that can be strategically positioned to monitor critical areas of the active region. This allows effective damage detection with reduced total coverage area compared to a solid continuous trace.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The parallel zigzag legs are positioned to provide enhanced monitoring in specific high-risk areas of the active region while maintaining adequate coverage elsewhere. This localized quality approach optimizes detection effectiveness without requiring uniform high-density coverage across the entire active region.

Inventive Principle:
Principle #3Local quality

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 trace effectively detects damage to the active region while maintaining low light transmission loss, ensuring safety and functionality.

Implementation Method 1

monitor an electrical characteristic (e.g., resistance) of the conductive trace. Damage to the active region that also impinges on the conductive trace will typically cause a change in the electrical characteristic that can be detected

Methodology Applied
Scientific EffectElectrical Resistance: Electrical Resistance

Data Source

PatentEP4668505A1Optical component with conductive trace, associated optical module, and associated method
Publication Date: 2025.12.24 STMICROELECTRONICS INT NV
  • EP4668505A1 patent drawingFigure 1
  • EP4668505A1 patent drawingFigure 2
  • EP4668505A1 patent drawingFigure 3

AI summary

In accordance with various embodiments of the present disclosure, an optical component is provided. In some embodiments, the optical component comprises a first active region and an electrically conductive trace comprising at least a first leg and a second leg both on a surface of or embedded in the first active region. The first and second legs each comprise at least substantially straight first, second, and third segments. The second segment of the first leg is positioned at an angle relative to the first and third segments of the first leg. The second segment of the second leg is positioned at an angle relative to the first and third segments of the second leg. The first segments of the first and second legs are substantially parallel. The second segments of the first and second legs are substantially parallel. The third segments of the first and second legs are substantially parallel.