Substrate Processing Apparatus Gas Handling Layout

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Solution Overview

Problem

Existing substrate processing apparatuses face challenges in reducing installation area and facilitating maintenance, particularly in batch processing units, due to inefficient layouts and maintenance access.

Innovation Solution

A substrate processing apparatus design featuring a loading and unloading unit with a substrate transport unit and multiple batch processing units aligned along a longitudinal direction, where gas supply and exhaust units are positioned on the same side to reduce installation area and enhance maintenance accessibility through dedicated maintenance areas.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If gas supply unit and exhaust unit are provided on opposite sides of the processing container, then gas flow efficiency is improved, but installation area increases and maintenance accessibility deteriorates

Engineering Contradiction:
Improvegas flow efficiencyVSAvoidinstallation area
Core Design Contradiction:
Ease of manufactureVSArea of stationary object

Solution Approach 1:

The gas supply unit and exhaust unit are merged and positioned on the same side of the processing container rather than being distributed on opposite sides. This consolidation reduces the overall installation area while maintaining functional efficiency through optimized gas flow path design within the container.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The gas supply and exhaust units are arranged in a vertical or layered configuration on the same side, utilizing the third dimension (height/depth) rather than spreading them horizontally across opposite sides. This dimensional reorganization reduces the footprint area while preserving gas flow effectiveness.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Ease of manufacture

If gas supply unit and exhaust unit are provided on opposite sides of the processing container, then gas flow efficiency is improved, but maintenance accessibility deteriorates

Engineering Contradiction:
Improvegas flow efficiencyVSAvoidmaintenance accessibility
Core Design Contradiction:
Ease of manufactureVSEase of repair

Solution Approach 1:

By consolidating both gas supply and exhaust units on one side, maintenance personnel can access both units from a single location without needing to approach opposite sides of the container. This merging improves maintenance accessibility while gas flow efficiency is maintained through internal path optimization.

Inventive Principle:
Principle #5Merging (Combining)

3Area of stationary object

If multiple batch processing units are arranged in a compact configuration, then installation area is reduced, but maintenance access deteriorates

Engineering Contradiction:
Improveinstallation areaVSAvoidmaintenance access
Core Design Contradiction:
Area of stationary objectVSEase of repair

Solution Approach 1:

The batch processing units are segmented into modular configurations with standardized access points. By organizing units with uniform gas supply and exhaust positioning, maintenance personnel can efficiently service multiple units from consistent approach angles, maintaining accessibility despite compact arrangement.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS20230253221A1Substrate processing apparatus
Publication Date: 2023.08.10 TOKYO ELECTRON LTD
  • US20230253221A1 patent drawing
  • US20230253221A1 patent drawing
  • US20230253221A1 patent drawing

AI summary

A substrate processing apparatus includes a loading and unloading unit having a first side surface through which a container accommodating a substrate is loaded and unloaded, and a second side surface opposite to the first side surface, a substrate transport unit extending along a first direction perpendicular to the second side surface, and a plurality of batch processing units adjacent to one another along a longitudinal direction of the substrate transport unit. Each of the plurality of batch processing units includes a processing container configured to accommodate and process a plurality of substrates, a gas supply unit configured to supply a gas into the processing container, and an exhaust unit configured to exhaust the gas inside the processing container. The gas supply unit and the exhaust unit are provided on one side of the processing container.