Quartz Reaction Tube Loading Device for Semiconductor Diffusion
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Solution Overview
Problem
The existing semiconductor diffusion equipment in China lacks a versatile and efficient device for loading and unloading quartz reaction tubes, which are prone to damage due to the compact structure of the equipment and limited space in the reaction chamber, leading to instability and poor maintenance efficiency.
Innovation Solution
A loading and unloading device with a translation drive structure, linear guide rail, and auxiliary support structure, including a bracket with interface units and height-adjustable rollers, allows for precise and safe docking of the quartz reaction tube with the lifting device, enabling flexible and reliable operation across various semiconductor diffusion equipment models.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the semiconductor diffusion equipment uses a compact structure to reduce equipment size, then the equipment occupies less space and is more space-efficient, but the space in the reaction chamber for accommodating the quartz reaction tube becomes limited, making it difficult to achieve accurate and smooth docking with the lifting device
Solution Approach 1:
The loading device incorporates a movable platform that can translate horizontally along the X-axis and vertically along the Y-axis, transforming a static compact structure into a dynamic system. This dynamic capability allows the platform to adapt its position to accommodate the quartz reaction tube of various sizes while maintaining accurate docking with the lifting device, thereby resolving the contradiction between compact structure and docking precision
Solution Approach 2:
The loading device is divided into multiple independent functional modules: a movable platform for horizontal movement, a lifting device for vertical movement, and a fixing device for securing the reaction tube. This segmentation allows each module to operate independently and precisely, enabling accurate docking in the limited space of the compact semiconductor diffusion equipment
2Area of stationary object
If the quartz reaction tube is handled in the compact reaction chamber, then the equipment maintains its compact structure, but the quartz reaction tube is prone to damage due to limited maneuvering space
Solution Approach 1:
The loading device acts as an intermediary between the operator and the quartz reaction tube. It provides a specialized platform with fixing devices that securely hold the reaction tube during loading and unloading operations, reducing the risk of damage while operating within the compact reaction chamber space
Solution Approach 2:
The movable platform with dual-axis translation capability allows for careful and controlled movement of the quartz reaction tube into and out of the reaction chamber. This dynamic positioning system enables precise control over the tube's movement path, minimizing the risk of collision or damage in the confined space
3Reliability
If separate loading and unloading devices are used for different equipment models, then each device is optimized for its specific equipment, but the versatility is poor and the devices cannot be applied to both loading and unloading procedures of different equipment
Solution Approach 1:
The loading device is designed as a universal multi-functional system that can perform both loading and unloading operations. The movable platform, lifting device, and fixing mechanism work together to handle quartz reaction tubes of various sizes and types, making the device applicable to different semiconductor diffusion equipment models while maintaining optimized performance for each specific application
Data Source
AI summary
A loading and unloading device and method for a quartz reaction tube of a semiconductor diffusion equipment are provided; the loading and unloading device is used in combination with a lifting device of the quartz reaction tube; the lifting device has an interface flange that can be connected to the reaction tube. The loading and unloading device includes a translation drive structure, a linear guide rail, a bracket, and an auxiliary support structure to detachably fix the quartz reaction tube. During the loading procedure, the auxiliary support structure is mounted on the bracket; the front end of the translation drive structure is docked with the doorframes of the semiconductor diffusion equipment through a fixing structure, and the quartz reaction tube is docked with the interface flange of the lifting device by horizontally moving the bracket along the linear guide rail.