Monolithic Fluid Delivery Module with Integrated Filtration
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Solution Overview
Problem
The increasing complexity and density of flow control apparatuses in semiconductor fabrication pose challenges for efficient assembly and maintenance, as well as the need for improved fluid filtration to ensure reliable operation and minimize particle contamination.
Innovation Solution
A fluid delivery module with a substrate block and filter media that divides the fluid pathway into pre-filter and post-filter sections, integrated with active flow components to ensure accurate and contaminant-free fluid flow, facilitating efficient assembly and operation in dense packaging environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If multiple components are integrated into a dense packaging configuration to improve packaging density, then packaging density increases, but assembly and maintenance difficulty increases
Solution Approach 1:
The flow control apparatus is divided into modular components including a flow controller assembly, filter assembly, and valve assembly that can be independently manufactured and then integrated. This segmentation allows each module to be optimized separately while maintaining overall compactness, and facilitates easier assembly and maintenance by allowing individual modules to be replaced or serviced without disassembling the entire system.
Solution Approach 2:
Components are arranged in a nested configuration where the filter assembly is positioned within the flow controller housing, and the valve assembly is integrated into the same housing structure. This nesting approach maximizes packaging density by utilizing three-dimensional space efficiently while keeping connection paths short and direct, reducing assembly complexity.
2Reliability
If a filter is incorporated into the flow control apparatus to reduce particle contamination, then fluid purity improves, but device complexity increases
Solution Approach 1:
The filter assembly is merged with the flow controller housing to form an integrated unit. The filter housing serves dual purposes as both a structural component of the flow controller and a containment structure for the filter media. This merging eliminates the need for separate filter housing and mounting mechanisms, reducing overall device complexity while maintaining effective particle filtration.
Solution Approach 2:
The filter assembly is designed to serve multiple functions: it filters particles from the fluid flow, provides structural support within the housing, and acts as a flow distribution element. The filter media itself serves both filtration and flow control functions, reducing the need for additional components and simplifying the overall apparatus.
3Quantity of substance
If multiple fluid pathways are integrated into a monolithic substrate block to improve packaging density, then packaging density increases, but manufacturing precision requirements increase
Solution Approach 1:
Multiple fluid pathways are pre-formed within the monolithic substrate block using injection molding or similar manufacturing techniques before final assembly. This preliminary formation of pathways ensures consistent dimensions and proper alignment, reducing the precision requirements for subsequent assembly operations. The pathways are created as integral features of the substrate rather than requiring post-processing machining.
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 solution enables reliable and efficient fluid delivery with reduced contamination, improving the assembly and maintenance of flow control apparatuses, and enhancing the performance and reliability of semiconductor fabrication processes.
Implementation Method 1
A filter media positioned within the second fluid pathway divides the second fluid pathway into a pre-filter section and a post-filter section
Data Source
AI summary
Apparatuses for controlling fluid flow are important components for delivering process fluids for semiconductor fabrication. These apparatuses for controlling fluid flow require a variety of fluid flow components which are tightly packaged within the apparatuses for controlling flow. In an effort to improve packaging density, fluid delivery modules preferably incorporate both active and passive components into a single substrate block. This enables increases in packaging density as well as enabling reduced cost through greater simplification of the fluid delivery module. For instance, incorporating a filter to filter incoming fluid with a valve or other component in a single monolithic block avoids the need for separate components which add cost and complexity.