With the development of micro-nano technology, micro-nano processing technology has gradually become an important link in manufacturing industry. The high-precision aluminum template has become one of the key factors in the realization of micro-nano machining technology. The method of realizing micro-nano machining technology by using high-precision aluminum template is widely used in semiconductor, optoelectronics, biomedicine and other fields.

Aluminum template is a kind of micro tool made by lithography process, which has the advantages of high precision, high repeatability and low cost. Small structures of various shapes and sizes can be made using aluminum templates, such as microchannels, microholes, and microarrays. The preparation process of high-precision aluminum template mainly includes three steps: lithography, electroplating and stripping. Among them, lithography is one of the key steps in the preparation of high-precision aluminum templates, whose purpose is to graphically form the photoresist template. Electroplating is the process of forming an aluminum film on the photoresist template. The process takes advantage of the blocking effect of the photoresist, so that some areas on the photoresist template are not affected by electroplating, while other areas are electroplated into aluminum film. Stripping is the process of stripping the photoresist template from the aluminum film, the purpose of which is to obtain a high-precision aluminum template.

The realization of micro-nano machining technology using high-precision aluminum templates can be achieved by different methods. For example, using high-precision aluminum templates to make microfluidic chips, microfluidic mixing, separation and control can be realized in microchannels. Biological experiments such as cell culture and protein detection can be carried out on microarrays by using high-precision aluminum templates to make biochips. At the same time, high-precision aluminum templates can also be used in photonic crystal preparation, nano-electronic device preparation and other fields.

The advantages of micro-nano machining technology using high-precision aluminum templates are obvious. First of all, the use of high-precision aluminum templates to prepare small structures has a high degree of control and precision, and can manufacture small structures of different sizes and shapes. Secondly, the aluminum template preparation process is simple and low cost, and large quantities of high-quality templates can be quickly prepared. In addition, the aluminum template preparation technology has a high degree of maturity, the preparation process has been relatively mature and stable, the prepared template quality is stable and reliable, and can ensure the consistency and repeatability of micro and nano processing. In addition, high-precision aluminum templates have a wide range of applications, which can be used in semiconductor, optoelectronics, biomedicine and other fields, and have a wide range of market demand and application prospects.

However, there are some challenges and limitations in the preparation of high-precision aluminum templates. First of all, the resolution and limitation of lithography technology affect the preparation accuracy of aluminum templates. Secondly, the stripping step in the process of aluminum template preparation is easy to introduce defects and residues, which affects the quality of aluminum template. In addition, the aluminum template preparation process has higher requirements for the environment, and needs to be prepared under clean environmental conditions, and the cost is high.

In order to solve these problems, researchers are carrying out related research and technological improvements. For example, using new lithography techniques, such as electron beam lithography, X-ray lithography, etc., can improve the resolution and accuracy of the preparation of aluminum templates. In addition, researchers are also exploring new stripping technologies, such as chemical stripping, ion beam stripping, etc., to improve the quality of aluminum templates and reduce defects and residues. In addition, the use of new materials and preparation processes, such as metal nanowire, nanoimprint, etc., can also expand the application range of aluminum templates and improve their performance.

In short, the realization of micro-nano machining technology using high-precision aluminum template is a technology with wide application prospects, and has the advantages of high precision, high controllability and low cost. Although there are some challenges and limitations in the preparation process, with the continuous development and improvement of related technologies, aluminum template preparation technology will have a broader application prospect and market demand.