Nowadays, the semiconductor industry (chip factory) has very strict requirements for air cleanliness in the production environment, and the requirements for filters are also relatively stringent. Because dust stuck to integrated circuits may cause open circuits and short circuits, the dust directly affects the product yield. So how to solve this problem? That isptfe composite filter paper.
“Line width” is one of the indicators for measuring chip integration, that is, the width of the wires on the circuit. In the era when line width was calculated in microns, people said that the limit on dust particle size in the manufacturing environment was less than one-tenth of the line width. As the line width continued to become smaller, the saying 1/10 became 1/4, 1/2. In 2002, the line width of the P4 processor in ordinary microcomputers was reduced to 0.13μm. At this time, any dust may damage the circuit.
The traditional ventilation form of chip factories is “big circulation”. The entire ceiling of the workshop is covered with filters, and the entire floor is a return air grille. Many chip factories now use filter units with their own fans, namely FFU. Sea salt particles in the air are the enemy of all electronic industries, but the particles of sea salt dust in the air are relatively large and can be filtered out by ordinary filters.
The currently independently developed ptfe composite filter paper is the core filter material of the high-efficiency filter of the FFU fan filter unit. ptfe composite filter paper It is prepared using special biaxial stretching technology, which can ensure that all impurities such as small bacteria are trapped, and at the same time has a large flux. The material has high and low temperature resistance (-200℃-260℃), no aging, no splitting, no color change after long-term use, strong weather resistance, strong acid and alkali resistance, and wide chemical applicability. In addition, it also has a reliable filtration level of H13-U16, with low wind resistance and low energy consumption. It can meet the filtration efficiency level requirements of sub-efficient, high-efficiency, and higher air filters, and is highly recognized by customers! Interested parties can enter the store for consultation.
</p
