Test Substrate Exchange in Continuous-Flow Vacuum Systems
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Solution Overview
Problem
The existing methods for changing test substrates in vacuum treatment systems are labor-intensive, energy-consuming, and time-consuming, requiring frequent removal and re-introduction of test substrates, which leads to uneven cooling of carriers and reduced reproducibility due to temperature changes.
Innovation Solution
All test substrates required for a process run are loaded into the system with the substrates and carriers, allowing for in-situ treatment and analysis, with a method to replace test substrates only when the process is completed, utilizing multiple positions on carriers for efficient storage and handling, and a loading station for precise exchange of test substrates without disrupting the process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If test substrates are frequently removed and re-introduced in existing systems, then test substrate changes can be performed, but the process becomes labor-intensive, energy-consuming, and time-consuming with uneven carrier cooling
Solution Approach 1:
The patent applies preliminary action by pre-loading multiple test substrates onto carriers before introducing them into the vacuum system. Test substrates are prepared and positioned on carriers in advance, allowing immediate exchange during the process run without breaking vacuum or requiring complex manual handling. This eliminates the time-consuming sequence of removing carriers, manually exchanging substrates, and re-introducing carriers.
Solution Approach 2:
The patent implements the nesting principle by placing multiple test substrates onto single carriers in a nested arrangement. Each carrier can hold several test substrates simultaneously, allowing efficient storage and transport within the vacuum system. This nested configuration enables rapid exchange by simply replacing the entire carrier rather than handling individual substrates, significantly reducing change time.
2Adaptability or versatility
If test substrates are changed by removing and re-introducing carriers, then substrate exchange is possible, but carrier temperature stability is compromised leading to reduced reproducibility
Solution Approach 1:
The patent applies preliminary action by pre-loading multiple test substrates onto carriers before introducing them into the vacuum system. Test substrates are prepared and positioned on carriers in advance, allowing immediate exchange during the process run without breaking vacuum or requiring complex manual handling. This eliminates the time-consuming sequence of removing carriers, manually exchanging substrates, and re-introducing carriers.
Solution Approach 2:
The patent implements the nesting principle by placing multiple test substrates onto single carriers in a nested arrangement. Each carrier can hold several test substrates simultaneously, allowing efficient storage and transport within the vacuum system. This nested configuration enables rapid exchange by simply replacing the entire carrier rather than handling individual substrates, significantly reducing change time.
3Ease of operation
If manual test substrate exchange procedures are used, then substrate changes can be performed, but the process requires significant labor and complexity
Solution Approach 1:
The patent applies preliminary action by pre-loading multiple test substrates onto carriers before introducing them into the vacuum system. Test substrates are prepared and positioned on carriers in advance, allowing immediate exchange during the process run without breaking vacuum or requiring complex manual handling. This eliminates the time-consuming sequence of removing carriers, manually exchanging substrates, and re-introducing carriers.
Solution Approach 2:
The patent implements the nesting principle by placing multiple test substrates onto single carriers in a nested arrangement. Each carrier can hold several test substrates simultaneously, allowing efficient storage and transport within the vacuum system. This nested configuration enables rapid exchange by simply replacing the entire carrier rather than handling individual substrates, significantly reducing change time.
Data Source
AI summary
A method for changing test substrates in a continuous-flow vacuum system in a multiple-treatment-step process cycle for treating a substrate, a treatment method using the method for changing test substrates, and systems for treating a plurality of substrates (61) and for changing test substrates. For at least two treatment steps, at least two test substrates (66) are transferred to a vacuum treatment system at the beginning of the process cycle and are transferred back out once the process cycle is concluded. Subsequently, the first test substrate (66) concurrently treated in this step is removed from the measurement position (70) it occupied during the treatment and is deposited in an empty position (71) without a test substrate (66). Subsequently, the second test substrate (66) which has not been treated yet is deposited in the resulting free measurement position (70) for the purpose of supplying the second test substrate to the subsequent treatment step.