Process Chamber Parameter Feedback for In-Situ Deposition Correction
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Solution Overview
Problem
Existing manufacturing systems for substrate production lack the capability to generate correction data in real-time, leading to inferior or unusable products due to deteriorating process chamber conditions and manual calibration processes.
Innovation Solution
An electronic device manufacturing system that includes a transfer chamber, a process chamber, and in-situ metrology equipment. This system generates metrology data during the deposition process, creates a correction profile based on the data, and updates the process recipe accordingly to adjust process chamber parameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If individual sensors are monitored to detect problems during deposition, then problem detection capability is improved, but correction data generation is insufficient leading to inferior products
Solution Approach 1:
The system implements feedback by using metrology equipment to measure film properties during deposition, comparing measurements to target values, and automatically adjusting process parameters based on the deviation. This closed-loop feedback mechanism transforms the open-loop sensor monitoring into a system that not only detects but also corrects process deviations in real-time, resolving the contradiction between detection capability and product quality.
2Device complexity
If manual calibration processes are used to adjust process chamber parameters, then system complexity is reduced, but time consumption increases and consistency deteriorates
Solution Approach 1:
The system applies self-service by enabling the manufacturing equipment to automatically perform calibration and optimization without manual intervention. The metrology equipment measures film properties, the system calculates required parameter adjustments, and executes the corrections autonomously. This self-calibrating mechanism eliminates time-consuming manual processes while maintaining system simplicity through automated routines.
3Device complexity
If process chamber conditions are allowed to deteriorate, then device complexity is reduced, but manufacturing precision deteriorates leading to inconsistent products
Solution Approach 1:
The system implements dynamics by transitioning from static process parameters to dynamically adjustable parameters. The metrology equipment continuously monitors film properties during deposition, and the system dynamically adjusts process chamber parameters in real-time based on measured deviations. This dynamic adaptation maintains manufacturing precision without requiring overly complex preventive control systems.
4Manufacturing precision
If real-time correction data generation is implemented, then manufacturing precision is improved, but device complexity increases
Solution Approach 1:
The system applies universality by designing the manufacturing equipment to perform multiple functions: deposition, in-situ metrology measurement, data analysis, and automatic parameter adjustment. The integrated system uses the same equipment to both manufacture and quality-control the product, eliminating the need for separate complex correction systems and reducing overall device complexity while maintaining high manufacturing precision.
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 system significantly reduces the time required for process optimization, enhances the detection of manufacturing issues, improves energy consumption, and minimizes the production of inconsistent products, thereby reducing downtime and improving overall manufacturing efficiency.
Implementation Method 1
the manufacturing equipment can perform a chemical vapor deposition (CVD) process to deposit alternative layers on the substrate
Data Source
AI summary
An electronic device manufacturing system capable of obtaining metrology data generated using metrology equipment located within a process chamber that performs a deposition process on a substrate according to a process recipe, wherein the process recipe comprises a plurality of setting parameters, and wherein the deposition process generates a plurality of film layers on a surface of the substrate. The manufacturing system can further generate a correction profile based on the metrology data. The manufacturing system can further generate an updated process recipe by applying the correction profile to the process recipe. The manufacturing system can further cause an etch process to be performed on the substrate according to the updated process recipe.