Why is equipment status monitoring necessary in the PVD process?

PVD physical vapor deposition processes are usually performed in a vacuum environment, and process stability is affected by the condition of magnetic fluid seals, gear reducers, vacuum chambers, motors, and oil pumps. If abnormal vibration, wear, or unstable vacuum chamber motion occurs, coating quality, process yield, and production availability may be affected. Therefore, equipment status must be monitored through measurement.

How does VMS-PH support PVD equipment measurement?

The VMS-PH portable measurement analyzer can measure dynamic signals from key components in the PVD process, including magnetic fluid seals, gear reducers, vacuum chambers, and motors. The data can be converted into visualized graphs to help engineers determine whether abnormal vibration, wear, irregular motion, or potential failure risks exist.

What problems can occur when a PVD magnetic fluid seal is abnormal?

If a magnetic fluid seal has poor sealing, spring looseness, gaps, installation abnormalities, wear, or insufficient lubrication, it may cause oil leakage, runout wear signals, or abnormal vibration during forward and reverse rotation. By comparing the forward and reverse rotation dynamics of equipment A, B, and C, engineers can identify units with higher vibration or those requiring continuous tracking.

Why compare gear reducer conditions under no-load and process operation?

The gear reducer is a key drive component in PVD equipment and consists of gears, bearings, shafts, and a housing. Comparing no-load conditions with actual process conditions helps reveal dynamic changes under different loads. If there is a clear difference between forward and reverse rotation, further health tracking is recommended.

What issues can be identified from PVD vacuum chamber dynamic signals?

By installing sensors at key locations below the vacuum chamber and comparing dynamic signals from identical measurement points across different equipment, engineers can determine whether abnormal mechanical vibration exists inside the chamber. Irregular signal changes may indicate internal mechanism abnormalities, while larger valve motion vibration suggests that long-term health monitoring is recommended.

Case

Application

FAQ

Support

How to Monitor and Measure Equipment Status in the PVD Process?

Case｜How to Monitor and Measure Equipment Status in the PVD Process?

PVD, or Physical Vapor Deposition, is a coating technology used in industrial manufacturing. Establishing an optimal process environment is essential to effectively improve production yield. How can the equipment status in the PVD process be monitored and measured?

Physical Vapor Deposition (PVD)

PVD, or Physical Vapor Deposition, is a coating technology used in industrial manufacturing. It primarily utilizes physical methods to heat or excite materials to deposit thin films through phase transition phenomena. In semiconductor processes, it falls under surface treatment processes and is typically carried out in a vacuum environment. For example, the evaporation source transitions from solid to gas, then condenses onto the wafer surface.

PVD methods are categorized into Evaporative PVD, Sputtering PVD, and Ion Plating (PAPVD). The production processes for display panels and touch panels also widely employ PVD coating methods. Since PVD thin film deposition requires a perfect vacuum environment, detailed inspection and monitoring of various equipment components are crucial.

Solutions and Monitoring Explanation

VMS-PH Portable Measurement Analyzer
Creating an optimal process environment is essential to improve production yield. So how can the equipment status in the PVD process be monitored and measured?

By measuring components such as magnetic seals, reducers, vacuum chambers, and motors within the PVD process, we can compare results to better understand the equipment status.

The measured values are directly converted into intuitive graphical representations, uncovering hidden process insights that can be used as a basis for future online monitoring. Regular equipment inspections and predictive maintenance help prevent unexpected downtime or anomalies in the process.

Measurement Conditions

PVD Magnetic Oil Seal Measurement

The magnetic oil seal consists of a combination of a stationary ring and a rotating ring, utilizing magnetic force technology and mechanical seal concepts with a fully floating sealing surface structure.
Dynamic Analysis Comparison of Forward and Reverse Rotation for PVD Magnetic Oil Seal Equipment A/B/C

PVD Magnetic Oil Seal Equipment A/B/C Analysis

Magnetic oil seal equipment B/C driven by the same motor shows higher vibration levels in forward rotation for equipment C.
Equipment A exhibits vibration and wear signals in both forward and reverse rotations and requires further observation.

Common causes of oil leakage anomalies:
Defective Oil Seal: Poor manufacturing quality, cracks, or loose springs. Maintenance actions: Replace the oil seal or adjust the spring tension.
Poor Installation: Severe operational wear, lack of shine, or dust accumulation. Maintenance actions: Replace the oil seal, lubricate, and clean.

PVD Gear Reducer Measurement

The gear reducer is a critical drive component in equipment, composed of gears, transmission parts, bearings, shafts, housings, and other accessories.
Dynamic Analysis Comparison of Forward and Reverse Rotation for Gear Reducer Equipment A/B/C

Idle Operation State

Process Operation State

Significant differences in forward and reverse rotation for equipment B require further monitoring.

PVD Vacuum Chamber Measurement

The vacuum chamber, used in PVD processes, maintains a vacuum state via a vacuum pump for physical experiments or coating applications.
Sensors placed at the bottom of Chamber 4, measuring points A and B for comparison

Equipment A shows more irregular dynamic signals compared to equipment B.
→ The recorded signals confirm that internal mechanical issues in equipment A are causing abnormal vibrations.

Equipment B exhibits greater vibration due to PVD valve operations compared to equipment A.
→ Despite the regular pattern in equipment B, the valve operations generate more vibration than equipment A, suggesting long-term monitoring is necessary.

OIL PUMP Measurement

Measurement Conclusion

To create an optimal process environment and effectively improve production yield, it is crucial to monitor equipment status. The VMS-PH Portable Measurement Analyzer enables rapid detection of various equipment issues, and its collected anomaly data can serve as a reference for future online monitoring.

VMS-PH Portable Measurement Analyzer

VMS-PH

Enhancing production yield by monitoring equipment status

FAQ

Why is it necessary to grasp the equipment status in the PVD process?
The Physical Vapor Deposition (PVD) process usually takes place in a vacuum environment. Process stability is affected by the status of equipment such as magnetic seals, reducers, vacuum chambers, motors, and oil pumps. If the equipment experiences abnormal vibration, wear, or unstable vacuum chamber operation, it may affect coating quality, process yield, and production line utilization. Therefore, it is necessary to grasp the equipment status through measurement.

How does VMS-PH assist in measuring PVD process equipment?
The VMS-PH portable measurement analyzer can perform dynamic signal measurements on key components in the PVD process, such as magnetic seals, reducers, vacuum chambers, and motors. It converts the measurement data into intuitive graphs, assisting engineers in determining whether the equipment has abnormal vibration, wear, irregular operation, or potential failure risks.

What problems can abnormal PVD magnetic seals cause?
If PVD magnetic seals have poor sealing, overly loose springs, gaps, improper installation, wear, or poor lubrication, it may cause oil leaks, jump/wear signals, or abnormal forward/reverse rotation vibrations. By comparing the dynamic analysis of the equipment's A/B/C forward and reverse rotations, equipment with higher vibration levels or requiring continuous observation can be identified.

Why is it necessary to compare idling and process conditions for PVD reducers?
The reducer is an important driving component in PVD equipment, consisting of gears, bearings, a spindle, and a casing. Comparing the idling state with actual process conditions helps determine the dynamic changes of the reducer under different loads. If there is a significant difference between forward and reverse rotations, it means its health status needs to be continuously observed.

What problems can the dynamic signals of the PVD vacuum chamber reveal?
By attaching sensors to the components below the vacuum chamber and comparing the dynamic signals of different equipment at the same measurement point, it can be determined whether there is abnormal mechanical vibration inside the chamber. If the equipment signal is irregular, it may mean that the internal mechanism is causing abnormal vibration; if the valve operates with a large vibration, continuous long-term monitoring of its health status is recommended.

What are the benefits of implementing PVD equipment inspection and predictive maintenance?
After implementing PVD equipment inspection and predictive maintenance, abnormal characteristics of magnetic seals, reducers, vacuum chambers, motors, and oil pumps can be quickly collected to establish a basis for future online monitoring. Through long-term trend management, equipment degradation can be detected early to avoid unexpected downtime or abnormalities during the process, thereby improving production line yield and equipment reliability.