Single-Chamber CVD-ALD Substrate Processing for Precise Patterning
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing deposition techniques struggle to achieve precise control over patterning in semiconductor devices, which is essential for further device integration and miniaturization.
Innovation Solution
The method involves using a processing apparatus with a chamber that performs chemical vapor deposition (CVD) and atomic layer deposition (ALD) on a substrate without moving it out of the chamber, followed by etching, to form specific films and patterns on the substrate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If multiple deposition techniques (CVD and ALD) are used to achieve precise patterning control, then manufacturing precision is improved, but device complexity increases due to multiple processing steps
Solution Approach 1:
The patent combines CVD and ALD deposition techniques within a single processing chamber, allowing sequential formation of first and second films without substrate removal. This merging of multiple deposition processes into one chamber reduces overall system complexity while maintaining precise patterning control through the complementary characteristics of CVD (for conformal coverage) and ALD (for atomic-level precision).
Solution Approach 2:
The processing chamber is designed to perform multiple functions: it can execute both CVD and ALD deposition processes, as well as etching operations, all within the same chamber environment. This multi-functionality eliminates the need for separate chambers for each process type, reducing device complexity while maintaining manufacturing precision through optimized process integration.
2Productivity
If the substrate is processed in a single chamber without moving it out, then productivity is improved by reducing transfer time, but manufacturing precision may be compromised by limited process control
Solution Approach 1:
The processing chamber is segmented into distinct functional zones that can independently execute CVD, ALD, and etching processes. This segmentation allows each process type to have its own optimized process parameters and environmental controls, maintaining manufacturing precision while enabling continuous processing without substrate removal, thus improving productivity.
Solution Approach 2:
The chamber environment and process parameters are pre-configured for each deposition and etching step before the substrate is introduced. This preliminary preparation ensures that when the substrate remains in the chamber for sequential processing, each step begins with optimal conditions already in place, maintaining precision while enabling continuous high-speed processing.
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
This approach allows for precise control over film formation in different regions of the substrate, enabling improved integration and miniaturization of semiconductor devices while maintaining the substrate within a single processing chamber.
Implementation Method 1
first forming a first film in a first region of the substrate in the chamber by chemical vapor deposition
Implementation Method 2
second forming a second film in a second region of the substrate in the chamber by atomic layer deposition
Data Source
AI summary
An apparatus for processing a substrate is provided. The apparatus includes a processing apparatus and a controller. The processing apparatus includes a chamber. The controller includes a memory and a processor coupled to the memory. The memory stores computer-executable instructions for controlling the processor to control a process of the processing apparatus. The process includes first forming a first film in a first region of the substrate in the chamber by chemical vapor deposition. The process further includes second forming a second film in a second region of the substrate in the chamber by atomic layer deposition. The first forming and the second forming are performed without moving the substrate out of the chamber.