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F4B High Frequency PCB

Line Width : 3.5MIL ;

Line Spacing : 3MIL ;

Drilling Diameter : 2mm ;

Processing Size : 580 * 1200mm;

Plate Thickness : 0.88mm ;

Processing Layers : 4 layers;

Special Process : Thick gold plate, mechanical blind hole, etc.

Surface Treatment Processes : Include OSP, gold precipitation, nickel palladium gold plating, nickel plating, tin plating, tin spraying, etc.


F4B: The full name is polytetrafluoroethylene F4BM high frequency antenna plate. It has excellent comprehensive performance, corrosion resistance, high (low) temperature resistance, aging resistance, high insulation, high lubrication, non-adhesion, non-toxic. Widely used in aviation, chemical, electronics, bridge, textile, machinery, paper and ceramics and other industries.

With the continuous perfect pursuit of electronic products by the consumer population, all kinds of electronic consumer products have developed rapidly into various intelligent electronic products. The carrier of electronic products circuit board is also constantly following the fashion trend of fast-paced progress. Now the application of high frequency materials is also more and more extensive, involving a variety of electronic and electrical products, such as antennas are the most common, and now the aerospace, military, communications, digital, medical and other industries are inseparable from the application of materials.


Some of The Characteristics and Applications of PTFE High Frequency Materials:

PTFE sheet is mainly used as electrical insulation materials and contact with corrosive media carrier plate, mainly used to support the slider, track seals and lubricating materials, with the development of science and technology needs are now also widely used in the chemical industry, pharmaceuticals, dyestuff industry containers, storage tanks, reaction tower kettles, large pipelines, anticorrosive primary materials: machinery, construction, aerospace, military, communications, transportation bridges, sliders, guide rails; printing and dyeing, light industry, Textile industry, anti-adhesive materials, etc.


Advantages of PTFE Sheet:

a, high temperature resistance - a working temperature of 250 ° C;

b, low-temperature resistance - a good mechanical toughness: even if the temperature drops to -196 ° C, can maintain 5% elongation;

c, corrosion-resistant a pair of most chemicals and solvents, showing inertia, resistant to strong acids and alkalis, water and a variety of organic solvents;

d, weather resistant one has the best aging life in plastics;

e, high coefficient of friction is the lowest among solid materials;

f, non-adhesion a solid material is the smallest surface tension, does not adhere to any substance, mechanical properties of its friction coefficient is extremely small, only 1/5 of polyethylene, which is an important feature of perfluorocarbon surface. And because of the fluorine - carbon chain intermolecular forces are extremely low, so PTFE has a non-sticky;

g, non-toxic a physiologically inert, as artificial blood vessels and organs implanted in the body for a long time without adverse reactions;

h, good electrical properties a PTFE in a wide frequency range of dielectric constant and dielectric loss are very low, and breakdown voltage, volume resistivity and arc resistance are high.

Polytetrafluoroethylene sheet (also called PTFE sheet, Teflon sheet, Teflon sheet) is divided into two kinds of molding and turning, molded sheet is made of PTFE resin by molding method at room temperature, and then sintered and cooled. PTFE turned sheet is made of PTFE resin by pressing, sintering and rotary cutting. Its products are widely used and have excellent comprehensive performance: high and low temperature resistance (-192°C-260°C), corrosion resistance (strong acid, strong alkali, aqua regia, etc.), weather resistance, high insulation, high lubrication, non-adhesion, non-toxicity and other excellent characteristics.


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