The 3D microporous metal filter created by
etching and diffusion bonding
Filters are used in a variety of products, and the demand for filters is increasing every year. Especially the metal filters are increasing dramatically. The advantage of metal filters are their washability (can be used repeatedly) and durability, and environmentally friendly. Examples use case are coffee maker filters, headphone filters, flow meters and airflow systems used in industrial equipment, and air conditioner filters used in automotive market.
There are various methods/technologies of manufacturing metal filters, such as electroforming technology and stamping technology, but UPT provides “etching + diffusion bonding” to achieve this. For example, UPT can create three-dimensional shapes by stacking 1,000 sheets of 50 µm thick metal mesh with 100 µm holes, making it possible to manufacture extremely high-precision, high-aspect filters. Another advantage is flexible design.
The maintenance of metal filters can be done by washing, so they have less environmental impact than other materials. UPT offers the entire process from the prototype stage (Small volume)of the filter to mass production(High volume).