Vertical Cleanroom Tool Layout for Dense Access and Replacement
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Solution Overview
Problem
Existing cleanroom designs face challenges with increased tool sizes and substrate dimensions, leading to higher costs and difficulties in tool installation and maintenance, as well as inefficiencies in processing single substrates due to dense tool placement and large footprint requirements.
Innovation Solution
The design allows processing tools to be positioned in both vertical and horizontal dimensions, with tool bodies placed on the periphery of the clean space, enabling easier installation and removal, and using automated transfer systems for substrates within specialized carriers, facilitating efficient processing of single substrates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If tools are densely placed in traditional cleanroom layouts, then floor space utilization improves, but tool installation and removal becomes increasingly difficult and disruptive
Solution Approach 1:
The patent transitions from traditional horizontal cleanroom layouts to a vertical configuration where tools are stacked in multiple tiers. This dimensional change allows tools to be accessed from the top and bottom, enabling installation and removal without disrupting other tools, while maintaining high floor space utilization through vertical stacking.
Solution Approach 2:
The cleanroom space is segmented into multiple vertical tiers or levels, with each tier containing processing tools. This segmentation allows independent access to each tier through top and bottom openings, enabling tool installation and removal without affecting other tiers, thus resolving the contradiction between dense placement and ease of maintenance.
2Adaptability or versatility
If cleanroom volume increases to accommodate larger tools and substrates, then processing capability improves, but construction and maintenance costs increase considerably
Solution Approach 1:
By stacking tools vertically in multiple tiers, the system achieves increased processing capability without proportionally increasing floor space requirements. The vertical configuration allows larger tools and substrates to be accommodated while maintaining a compact footprint, thereby reducing construction and maintenance costs relative to horizontal expansions.
Solution Approach 2:
Multiple processing tools are nested vertically within a single cleanroom envelope, with tools arranged in hierarchical tiers. This nesting approach maximizes the use of vertical space, allowing increased processing capability within a controlled volume, thereby reducing the need for larger, more expensive cleanroom facilities.
Data Source
AI summary
The present invention provides various aspects of support for a fabrication facility capable of routine placement and replacement of processing tools in at least a vertical dimension relative to each other.