Trolley oven load testing and functional verification

In the precision process of semiconductor manufacturing, ovens are essential equipment, and their performance directly impacts chip quality and production efficiency. To ensure semiconductor ovens are always in optimal working condition, please carefully consider the following comprehensive daily maintenance instructions.

1. Deep Cleaning to Prevent Contamination Risks

Internal Cleaning: After each use, wait for the oven to completely cool and then wipe the interior with a dust-free cloth and a dedicated cleaner. Semiconductor production requires extremely high cleanliness standards, so pay special attention to corners and crevices when cleaning to prevent particles from accumulating and contaminating the chips. For stubborn stains, avoid harsh scrubbing and instead use a mild detergent to wipe repeatedly. Rinse with deionized water and dry thoroughly after cleaning.

External Cleaning: Regularly wipe the oven exterior with a clean, damp cloth to remove dust and stains. Avoid using corrosive cleaners to prevent damage to the exterior coating and compromise the equipment's aesthetics and protective properties. Also, inspect the equipment's surroundings to ensure there is no dust accumulation and maintain good ventilation.

2. Detailed Inspection and Maintenance of Key Components

Heating System: Inspect the heating element weekly for signs of oxidation and damage. If you notice any black spots or cracks on the surface of the heating tube, replace it immediately to prevent uneven heating that could affect chip drying. Additionally, check the heating system terminals for loose connections to ensure stable electrical connections and prevent malfunctions or safety hazards caused by poor contact.

Fan and air duct: Regularly check the fan's operation, listen for any unusual noises, and inspect the fan blades for deformation or dust accumulation. Dust accumulation can affect the efficiency of hot air circulation and lead to uneven temperatures within the chamber. Carefully clean the blades and the interior of the fan with compressed air. Also, check the air duct for unobstructed flow and remove any debris to ensure even and efficient circulation of hot air within the chamber.

Sealing strips: Semiconductor ovens require strict sealing. Check the door sealing strips daily for aging, deformation, or damage. Cracks or loss of elasticity can lead to unstable temperature and humidity within the chamber and may even introduce contaminants. Replace the strips promptly to ensure a good seal.

III. Accurate Calibration to Ensure Stable Parameters

Temperature and Humidity Calibration: Use a high-precision temperature and humidity sensor to calibrate the oven's internal temperature and humidity monthly. Semiconductor production requires extremely high temperature and humidity accuracy, and even the slightest deviation can affect chip performance. During calibration, if the displayed temperature and humidity values ​​deviate from the actual values ​​beyond the allowable range, the oven's temperature and humidity control parameters must be adjusted promptly, and the calibration data must be recorded for subsequent analysis and traceability.

Control System Inspection: Regularly inspect the oven's control system, including components such as the temperature controller and timer, for proper functioning. Test the sensitivity and accuracy of each control button and display to ensure the operator can accurately set and monitor oven operating parameters. If any abnormalities are detected, contact professional technicians promptly for repair and debugging.

IV. Standardized Decommissioning and Restart Maintenance

Long-term Decommissioning: If a semiconductor oven needs to be decommissioned for an extended period, thoroughly clean and dry the interior and disconnect the power supply. To prevent dust and moisture from entering, cover the oven tightly with a dust cover. Periodically (weekly is recommended) power it on for 1-2 hours to maintain stable performance of the internal electrical components and prevent malfunctions due to long-term inactivity.

Recommissioning: Before recommissioning an oven that has been decommissioned for an extended period, thoroughly inspect all components. This includes cleaning the interior again, checking electrical connections, testing the heating system and fan operation, etc. Run the unit at no load for a period of time to observe whether the temperature and humidity control are normal. Only after confirming that there are no abnormalities can it be put into use.