Integrated Tool Lift for Compact Semiconductor Chamber Maintenance
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Solution Overview
Problem
Traditional lifting mechanisms for semiconductor processing tools are inefficient and cumbersome, often requiring significant time, labor, and additional downtime due to limited access and space constraints, especially in tightly packed cluster tools.
Innovation Solution
Integrated hoisting systems within the tool itself, including a linear guide system and a moveable carriage with a hoist arm, allow for efficient lifting and movement of components by being directly mounted to the support framework, enabling access and movement of components without disrupting the tool's layout.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional separate hoisting equipment (crane or forklift) is used to move heavy components, then the components can be lifted, but the compact and tightly packed arrangement of processing chambers limits accessibility and effectiveness
Solution Approach 1:
The hoisting system is merged with the tool structure itself. The linear guide system is mounted to the support framework, and the carriage with hoist arm is integrated into the tool, eliminating the need for external cranes or forklifts. This integration allows the hoisting function to be performed from within the tool structure, improving accessibility to components in the compact arrangement.
Solution Approach 2:
The linear guide system extends along the linear array of processing chambers, providing a third dimension for access. The carriage can move along the linear guide system to reach different chambers, and the hoist arm can extend vertically to reach components, creating multi-dimensional access paths that overcome the limitations of the compact layout.
2Productivity
If conventional floor-supported hoisting equipment is used, then lifting capability is provided, but maintenance time and labor increase due to difficulty in accessing and moving components
Solution Approach 1:
The tool performs its own maintenance operations through the integrated hoisting system. The carriage and hoist arm can be positioned to access any processing chamber, and the hoist arm can lift and move components without requiring external equipment or complex setup procedures. This self-service capability reduces maintenance time and labor requirements.
3Area of stationary object
If the tool has a compact arrangement of processing chambers, then space efficiency is improved, but accessibility of heavy components for maintenance becomes difficult
Solution Approach 1:
The tool is segmented into multiple processing chambers arranged in a linear array, with the linear guide system providing access paths between them. The carriage can service individual chambers without requiring access to the entire tool, allowing maintenance operations to be performed on specific components while maintaining the compact overall structure.
Data Source
AI summary
Semiconductor processing tools are provided that include a support framework, semiconductor processing chambers arranged along an axis, an attachment point connected to the support framework, and a detachable hoist system. Each chamber includes a base portion fixedly mounted relative to the support framework and a removable top cover including one or more hoisting features. The detachable hoist system includes a vertical member including a top end including a complementary attachment point and a bottom end including a movement mechanism supported by a floor. The complementary attachment point is detachably connected to the attachment point. The detachable hoist system further includes a hoist arm connected to the vertical member. The hoist arm is configured to pivot about a vertical axis substantially perpendicular to the axis, and includes one or more links and a hoist feature engagement interface configured to engage with the hoisting features of any of the removable top covers.