The 12 inch wafer dryer is widely used in the development of wafer production lines. Its core function is to remove residual moisture and impurities on the wafer surface after wet cleaning through physical or thermodynamic means, ensuring the cleanliness and flatness of the wafer surface, thereby improving the yield and reliability of semiconductor devices. Analyze from three dimensions:

1、 Technical principle: Multi mechanism collaboration achieves efficient drying

A 12 inch wafer dryer typically integrates various technologies such as centrifugal drying, hot air convection, nitrogen blowing, and infrared radiation to form a composite drying system

1. Centrifugal drying: By generating centrifugal force through high-speed rotation, the moisture on the surface of the wafer is shaken away, and combined with hot air circulation, residual moisture is further evaporated. This technology can shorten the processing time of a single chip to less than 1 minute, making it suitable for large-scale production.

2. Nitrogen blowing: Use high-purity nitrogen to blow the surface of the wafer to prevent oxidation and accelerate water evaporation. Some devices use non-contact heating of nitrogen gas to avoid direct contact between the heater and nitrogen gas, reducing particle pollution.

3. Infrared radiation: By directly heating the surface of the wafer with infrared radiation with a wavelength of 1-10 μ m, precise temperature control can be achieved locally, and the drying speed is extremely fast, especially suitable for ultra-thin wafers and flexible electronic devices.

2、 The 12 inch wafer dryer runs through multiple core processes in semiconductor manufacturing:

1. Front end process (FEOL): Immediately dry the wafer after cleaning to avoid defects caused by water stains or film residue. For example, after chemical mechanical polishing (CMP), a dryer can quickly remove residual polishing fluid from the wafer surface to prevent metal ion contamination.

2. Middle Way Process (MEOL): After photolithography, etching, and other steps, a dryer is used to remove photoresist residue or etching by-products on the wafer surface, ensuring the accuracy of subsequent processes.

3. Post encapsulation process (BEOL): Before packaging and testing, the dryer performs final cleaning on the wafer to prevent impurities from being introduced during the packaging process and improve device reliability.

In addition, the device is widely used in fields such as optoelectronic manufacturing (such as optical coating component cleaning), biomedicine (such as bioreactor cleaning), and automotive electronics, meeting the requirements of high cleanliness and high reliability.

3、 Performance advantage: Technological upgrade drives production line efficiency improvement

The 12 inch wafer dryer significantly optimizes production line efficiency and cost through technological innovation:

1. High compatibility: Supports processing of various sizes of wafers ranging from 4-12 inches, adapting to different process node requirements.

2. High precision control: equipped with AI visual inspection system, real-time monitoring of wafer drying status and automatic adjustment of parameters (such as speed and temperature) to ensure uniform drying. Some devices simulate the drying process through digital twin technology, optimize the process path, and reduce trial and error costs.

3. Low maintenance cost: Simplified mechanical structure design (such as oil-free lubrication pump, PVC anti-corrosion chamber), reducing equipment failure rate and maintenance frequency.