Pneumatic Substrate Flipping Device With Four-Bar Linkage
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional substrate flipping devices in semiconductor processing systems are large, impractical for multiple substrate sizes, and prone to substrate damage due to complex electronic controls and limited robotic access directions, often requiring significant installation space and increasing the risk of substrate fracture.
Innovation Solution
A substrate flipping device with a flexible securing assembly and pneumatic actuators that can accommodate different substrate sizes and orientations, allowing robotic access from various directions, and featuring a gripping actuator to secure and rotate substrates without electronic control complexity, thus reducing the risk of damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional electronic control systems are used in substrate flipping devices, then precise control of substrate orientation is achieved, but device complexity and installation space increase
Solution Approach 1:
The patent replaces complex electronic control systems with a purely mechanical linkage system. The four-bar linkage mechanism with pinned connections provides deterministic mechanical control of substrate orientation through pneumatic actuators, eliminating the need for complex electronic sensors, motors, and control algorithms while maintaining precise orientation control.
Solution Approach 2:
The patent uses pneumatic actuators (bellows) to drive the mechanical linkage system. The pneumatic system provides simple binary control (actuated/not actuated) that directly translates to substrate orientation states, replacing complex electronic control with pneumatic pressure control while reducing device complexity.
2Adaptability or versatility
If conventional substrate flipping devices are designed for multiple substrate sizes, then versatility is improved, but device size and installation space requirements increase
Solution Approach 1:
The patent designs a universal substrate flipping device where the mechanical linkage and pneumatic actuator system can handle multiple substrate sizes through the same basic mechanism. The device achieves multi-functionality by adapting the same structural components to different substrate dimensions without requiring size-specific mechanical systems, thereby reducing installation space while maintaining versatility.
Solution Approach 2:
The patent accommodates different substrate sizes by changing operational parameters (pneumatic pressure levels, linkage positions) rather than changing the fundamental mechanical structure. This allows a single compact device design to handle multiple substrate sizes through parameter adjustment rather than requiring multiple specialized devices.
3Measurement precision
If complex electronic control systems are used in substrate flipping devices, then precise flipping operation is achieved, but the risk of substrate damage increases
Solution Approach 1:
The patent replaces electronic control systems with a mechanical linkage system that provides inherently safer substrate handling. The mechanical linkage through pinned connections and bellows actuators eliminates the risk of electronic motor failures, overheating, or control errors that could damage substrates, while maintaining precise flipping operation through deterministic mechanical geometry.
Solution Approach 2:
The mechanical linkage system is designed with inherent mechanical compliance and controlled motion paths that prevent abrupt movements or excessive forces on substrates. The bellows actuators provide smooth, controlled expansion and contraction that cushions substrate handling, preventing fracture before it can occur.
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 device is more versatile and practical for various semiconductor processing systems, accommodating different substrate sizes and orientations while minimizing installation space and substrate damage, offering a simpler and more reliable flipping mechanism compared to conventional systems.
Implementation Method 1
The gripping actuator is configured to pneumatically cause the substrate securing assembly to be in an open position to receive a substrate and configured to pneumatically cause the substrate securing assembly to be in a closed position to secure the substrate
Implementation Method 2
The rotary actuator is configured to pneumatically cause the substrate securing assembly to rotate to a flipped position and to pneumatically rotate to a non-flipped position
Data Source
AI summary
A substrate flipping device includes a substrate securing assembly, a gripping actuator, and a rotary actuator. The gripping actuator is configured to pneumatically cause the substrate securing assembly to be in an open position to receive a substrate and configured to pneumatically cause the substrate securing assembly to be in a closed position to secure the substrate. The rotary actuator is configured to pneumatically cause the substrate securing assembly to rotate to a flipped position and to pneumatically rotate to a non-flipped position.