Integrated Optical Circuit Chip Panel Dam Insulation
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Solution Overview
Problem
Current methods for processing integrated optical circuit chips are inefficient and prone to light leakage, as they require individual application of insulating polymers and lack a concurrent singulation process.
Innovation Solution
A method involving the formation of a panel dam around an array of integrated optical circuit chips, filling the enclosed area with an insulating polymer, and heating it to cover all sides of the chips, followed by singulation using techniques like etching or sawing, allowing for simultaneous processing and reduced light leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If individual application of insulating polymers is used for each chip, then light leakage is reduced, but processing efficiency is low and time-consuming
Solution Approach 1:
Multiple integrated optical circuit chips are arranged in an array configuration and processed simultaneously as a group. The insulating polymer is applied to the entire array at once rather than to individual chips, merging multiple processing operations into a single concurrent operation that maintains light leakage prevention while dramatically improving productivity.
Solution Approach 2:
Chips are arranged in an array configuration on a substrate before the insulating polymer application step. This preliminary arrangement allows subsequent processing steps to be performed on multiple chips simultaneously, enabling efficient batch processing while ensuring proper positioning and alignment for light leakage prevention.
2Productivity
If concurrent processing of multiple chips is implemented, then productivity is improved, but light leakage control becomes difficult
Solution Approach 1:
The insulating polymer is applied to cover specific regions around each chip in the array, with particular attention to the sides and edges where light leakage occurs. The application process ensures that each chip receives adequate insulating material coverage while maintaining uniform quality across all chips in the array, preventing light leakage even during concurrent processing.
Solution Approach 2:
A substrate is used as an intermediary platform to hold multiple chips in a fixed array configuration. This substrate provides structural support and positioning, enabling concurrent processing while maintaining precise chip alignment and ensuring that insulating polymer is properly distributed to prevent light leakage around each chip.
3Reliability
If insulating polymer is applied to cover all sides of chips, then light leakage is prevented, but material consumption increases
Solution Approach 1:
The insulating polymer is applied to cover the sides and edges of chips in the array, focusing material application on the regions where light leakage is most likely to occur. Rather than uniformly coating all surfaces equally, the process targets critical areas with sufficient material coverage while minimizing excess polymer consumption on non-critical surfaces.
Solution Approach 2:
Multiple chips are processed simultaneously in an array configuration, allowing the insulating polymer to be applied to all chips in a single operation. This merging of processing operations reduces total material consumption compared to individual chip processing, as the polymer is efficiently distributed across multiple chips at once while still providing complete side coverage for light leakage prevention.
Data Source
AI summary
A method for processing an integrated optical circuit chip includes securing a panel dam around a periphery of an array of integrated optical circuit chips that share a substrate. The method also includes filling an area circumscribed by the panel dam with an insulating polymer to a level below a top surface of the integrated optical circuit chips. The method further includes singulating a given integrated optical circuit chip in the array of integrated optical circuit chips.