Semiconductor Transfer Chamber Layout for Higher Throughput
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional semiconductor processing systems face challenges in maximizing throughput while minimizing footprint, leading to increased costs and reduced processing efficiency due to the need for additional transportation units and restricted maintenance and hardware design flexibility.
Innovation Solution
The semiconductor processing system optimizes spatial layout by incorporating lateral and end portion semiconductor processing modules with wider end faces and integrated process chambers, allowing for increased process chamber mounting without significant length increase, improved maintenance access, and automated part replacement, utilizing a movable transportation unit with robot arms for efficient wafer handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the transfer chamber is prolonged to mount additional process chambers, then the number of process chambers increases, but the footprint of the semiconductor processing system increases
Solution Approach 1:
The patent transitions from a linear arrangement of process chambers to a three-dimensional configuration where process chambers are mounted on both sidewalls and the end face of the transfer chamber. This spatial reorganization allows additional process chambers to be integrated without proportionally increasing the system footprint, effectively utilizing vertical and lateral space in multiple dimensions.
Solution Approach 2:
The process chambers are nested along the sidewalls and end face of the transfer chamber, with multiple chambers arranged in compact configurations. This nesting approach allows process chambers to be tightly integrated into the available space, maximizing chamber density while minimizing the overall system footprint.
2Productivity
If the transfer chamber is prolonged to mount additional process chambers, then the number of process chambers increases, but more transportation units are needed which increases costs and relay time
Solution Approach 1:
The single transportation unit is designed with multi-functionality to serve process chambers located at different positions (sidewalls and end face). The robot arm can access and transfer wafers to/from multiple process chambers without requiring separate dedicated transportation units for each chamber, reducing system complexity and cost while maintaining high productivity.
Solution Approach 2:
The transportation unit incorporates a movable robot arm with dynamic positioning capability, allowing it to adaptively access process chambers at various locations. This dynamic design enables one transportation unit to efficiently handle multiple chambers, eliminating the need for static, dedicated transportation units for each chamber.
3Area of stationary object
If the gap between sidewalls of process chambers is designed narrow, then the footprint is minimized, but maintenance access is restricted
Solution Approach 1:
The system is segmented into multiple access zones: the front face of the transfer chamber provides access for wafer loading/unloading, while the end face and sidewalls provide additional access points for maintenance. This segmentation allows maintenance personnel to approach process chambers from multiple directions, improving ease of repair without significantly increasing the system footprint.
Solution Approach 2:
By mounting process chambers on both sidewalls and the end face, the patent creates multiple spatial dimensions for maintenance access. Technicians can access process chambers from the front, side, or end depending on the specific maintenance needs, providing flexible access paths that do not require excessive gap spacing while maintaining minimized footprint.
Data Source
AI summary
A semiconductor processing system, including: an elongated transfer chamber including a middle portion, a first end portion disposed at a first end of the middle portion and a second end portion disposed at a second end of the middle portion, wherein at least two lateral semiconductor processing modules attach to the first and second sidewall of the middle portion; the second end portion of the transfer chamber is further attached with one end portion semiconductor processing module, the end portion semiconductor processing module including two process chambers, the two process chambers of the end portion semiconductor processing module being respectively connected to an end face of the second end portion via two air-tight valves; wherein a traverse distance (D4) is provided between the two air-tight valves of the end portion semiconductor processing module, the width of the end face is greater than the traverse distance, and the spacing (D2) between the first and sidewall.