Semiconductor Conductive Layer Inert Gas Oxidation Prevention
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Solution Overview
Problem
The miniaturization of semiconductor devices leads to increased complexity in manufacturing, resulting in issues such as poor electrical interconnection, crack development, and delamination due to voids and oxidation of conductive materials, which exacerbate yield loss and material wastage.
Innovation Solution
An apparatus and method involving an enclosure filled with an inert gas, such as nitrogen, to minimize or prevent oxidation of conductive materials during the manufacturing process of semiconductor structures, thereby improving the formation of conductive features and reducing voids and delamination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If semiconductor devices are miniaturized to increase functionality and integration, then device functionality and integration are improved, but manufacturing complexity increases leading to poor electrical interconnection, cracks, and delamination
Solution Approach 1:
The patent applies inert atmosphere by filling the enclosure with nitrogen gas to create an oxygen-free environment during conductive material deposition and processing. This prevents oxidation of conductive materials, which is a major source of manufacturing defects such as poor electrical interconnection, cracks, and delamination. The inert environment maintains material integrity throughout the manufacturing process while enabling continued miniaturization and increased device functionality.
2Adaptability or versatility
If more different components with different materials are involved to increase functionality, then device functionality is improved, but manufacturing operation complexity increases resulting in high yield loss
Solution Approach 1:
The patent implements a comprehensive inert atmosphere environment using nitrogen gas filling in the enclosure during all manufacturing operations involving conductive materials. This consistent protective environment prevents oxidation across multiple different materials and components, reducing variability and defects. By maintaining uniform protective conditions throughout the manufacturing process, the patent improves yield while supporting increased device functionality through multiple material components.
3Ease of manufacture
If conductive materials are exposed to oxygen during manufacturing, then manufacturing process is simplified, but oxidation occurs causing voids and delamination
Solution Approach 1:
The patent replaces oxygen-containing atmosphere with nitrogen gas environment during conductive material processing. This substitution eliminates oxidation reactions that would otherwise occur, preventing void formation and delamination in conductive features. The inert atmosphere maintains material integrity and reliability while allowing for straightforward manufacturing processes without complex additional protective measures.
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 use of an inert gas environment suppresses oxidation, enhancing the reliability of conductive features and circuitry by preventing voids and delamination, thus improving the manufacturing yield and reducing material wastage.
Implementation Method 1
The use of an inert gas environment suppresses oxidation, enhancing the reliability of conductive features and circuitry by preventing voids and delamination
Data Source
AI summary
A method of manufacturing a semiconductor structure includes loading the substrate from a first load lock chamber into a first processing chamber; disposing a conductive layer over the substrate in the first processing chamber; loading the substrate from the first processing chamber into the first load lock chamber; loading the substrate from the first load lock chamber into an enclosure filled with an inert gas and disposed between the first load lock chamber and a second load lock chamber; loading the substrate from the enclosure into the second load lock chamber; loading the substrate from the second load lock chamber into a second processing chamber; disposing a conductive member over the conductive layer in the second processing chamber; loading the substrate from the second processing chamber into the second load lock chamber; and loading the substrate from the second load lock chamber into a second load port.