Which stage in YueMo Semiconductor requires an oil-free air compressor?

Air Quality Requirements in the Semiconductor and Advanced Packaging Industries

In modern semiconductor manufacturing and advanced packaging projects, the cleanliness of the production environment and the purity of process gases are critical factors determining product yield. Taking advanced packaging lines such as those operated by YueMo Semiconductor as an example, even trace amounts of oil contamination, moisture, or particulates can lead to surface defects on wafers or chips, resulting in irreversible losses. Therefore, when supplying compressed air, facility‑support systems must employ oil‑free compressors to ensure that the air source meets the Class 0 oil‑free standard.

Core process steps required for oil-free air compressors

Throughout the entire production process of semiconductors and advanced packaging, the following critical stages have stringent and rigid requirements for oil-free compressed air:

• Cleanroom Air Conditioning and Fresh Air SystemSemiconductor cleanrooms must maintain extremely high positive pressure and stringent cleanliness levels. Fresh-air handling units and fan-filter units require a stable air supply during operation; if the compressed air contains oil, it will directly contaminate the HEPA filters and compromise the cleanroom environment.
• Pneumatic component-driven precision equipment: Core equipment such as lithography machines, pick-and-place machines, and wire bonders contain numerous precision pneumatic valves and cylinders. Oil-free compressed air prevents internal wear, jamming, or seal degradation in pneumatic components, ensuring exceptionally high precision and stability in equipment operation.
• Chemical Conveying and Mixing SystemDuring wafer processing and packaging, large quantities of high-purity chemical reagents are required. When compressed air is used for chemical delivery or agitation, oil contamination in the air supply can lead to reagent contamination, directly compromising the performance of etching, cleaning, or electroplating processes.
• Advanced Packaging and Test Sorting StageIn advanced processes such as flip-chip and wafer-level packaging, material-handling and test‑sorting equipment rely heavily on pneumatic nozzles and robotic arms. Oil‑free compressed air prevents oil contamination from adhering to the chip surface, ensuring reliable probe contact during testing and maintaining a clean package appearance.

The critical role of oil-free air compressors in plant utility systems

Adopting oil-free air compressors is not merely a passive choice to meet process requirements; it is also a proactive strategy for enhancing overall production safety. By eliminating oil contamination at the source, companies can significantly reduce the frequency of maintenance and the costs associated with replacing downstream filters. Moreover, zero‑class oil‑free air eliminates the risk of flammable oil‑air mixtures accumulating in pipelines, providing more reliable facility‑support systems for high‑value semiconductor manufacturing lines.

Recommendations for System Selection and Configuration in Factory Operations

Given the unique requirements of semiconductor manufacturing, when selecting oil-free air compressors for plant‑utility systems, particular attention should be paid to the compressor’s discharge quality, operational stability, and energy‑efficiency performance. It is recommended to deploy equipment that combines multi‑stage compression with high‑efficiency cooling, coupled with a robust drying and post‑treatment system, to ensure that the final compressed air delivered to the point of use meets the stringent standards of the semiconductor industry in terms of dew point, pressure, and cleanliness.