Modular Foreline Layout for Flexible Vacuum Chamber Matching
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Solution Overview
Problem
Existing modular foreline systems for semiconductor fabrication plants lack flexibility and standardization, making them difficult to maintain, repair, and configure efficiently, which affects vacuum performance and chamber matching.
Innovation Solution
A modular foreline system comprising standard components, including straight and bent segments with independently controllable heating zones, traps, reactors, and filters, allowing for customizable configurations that provide consistent vacuum performance and ease of maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If standard modular components are used to construct forelines, then ease of manufacture and assembly is improved, but flexibility in configuration is worsened
Solution Approach 1:
The foreline is divided into multiple standardized modular segments that can be independently manufactured and then assembled in different configurations. Each segment has standardized connection interfaces that allow them to be coupled together in various arrangements to meet different spatial and performance requirements, thus achieving both ease of manufacture and configuration flexibility.
Solution Approach 2:
The modular segments are designed with universal connection interfaces and standardized dimensions that allow the same components to be used across different foreline configurations. This universality enables the standardized components to adapt to various chamber-pump pairings and spatial arrangements, maintaining flexibility while benefiting from standardized manufacturing.
2Manufacturing precision
If heating means are provided for each foreline segment, then temperature control precision is improved, but device complexity is worsened
Solution Approach 1:
The heating system is segmented into independent heating zones, with each foreline segment having its own heating means. This allows precise temperature control in each segment independently, enabling targeted temperature management without requiring complex centralized control systems for the entire foreline.
Solution Approach 2:
Each heating zone can be independently controlled and adjusted based on the specific requirements of different foreline segments. This dynamic control capability allows the system to adapt temperature settings locally without affecting other segments, achieving precision control while maintaining manageable system complexity through modular independence.
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 modular system enables flexible and efficient configuration of forelines, improving maintenance and repair accessibility, ensuring consistent vacuum performance across multiple process chambers, and reducing costs through standardized components.
Implementation Method 1
One or more foreline segment comprises a respective means for heating that foreline segment, such that heating of each foreline segment is independently controllable
Data Source
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AI summary
A kit of parts for forming a foreline (112) for coupling a process chamber (108) to a vacuum pumping and/or abatement system (110), the kit comprising: a plurality of foreline segments (122, 124); wherein each foreline segment (122, 124) is a pipe that comprises: a first substantially straight end portion (122a, 124a); a second substantially straight end portion (122b, 124b) opposite to the first end portion (122a, 124a); and an intermediate portion (122c, 124c) disposed between the first and second end portions (122a-b, 124a-b) and connected to the first and second end portions (122a-b, 124a-b) by respective bends (122d-e, 124d-e); the first and second end portions (122a-b, 124a-b) are substantially parallel to each other; the intermediate portion (122c, 124c) is oblique to the first and second end portions (122a-b, 124a-b); and the foreline segments (122, 124) are configured to be attached together so as to form a continuous foreline (112).