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Medical Equipment PCB
Minimum Line Width : 3MIL ;
Minimum Line Spacing : 3MIL ;
Drilling Diameter : ≥ 0.1mm ;
Processing Size : 600 * 1200mm
Plate Thickness : 0.1-10mm ;
Processing Layers : 2-20 layers;
Special Process : Thick gold plate, ultra thick plate, depth control drilling, back drilling, hole filling electroplating, copper slurry plug hole, mechanical blind hole, etc.
Surface Treatment Processes : Include OSP, gold precipitation, silver precipitation, tin precipitation, gold plating, pure gold plating, thick gold plating, nickel palladium gold plating, nickel plating, tin plating, tin spraying, etc.
We commonly use PCB substrates such as FR-4, FR-2, CEM-1, CEM-3, etc.
What do these symbols mean?
PCB substrates can be categorized according to the type of reinforcing material, the type of resin system, the flame retardant and filler used, the glass transition temperature (Tg value) of the resin system, and other properties of the material.
PCB for substrate performance indicators, including Tg, peel strength values of different test conditions, volume resistivity surface resistance, water absorption, dielectric breakdown voltage, dielectric constant, loss angle tangent, flexural strength and arc resistance are specified.
Characteristics of PCB:
A, PCB boards are integrated and simplified, which means that a large number of circuits can be integrated on a small board, and some predetermined control can be achieved by signaling command operations between components. The effect is that this is very popular in many large equipment line production control applications and the technology as a whole is very well developed.
B, Due to the high degree of simplicity of the PCB circuit boards, the workmanship is very delicate and the dimensions are small and do not take up much space. For some small equipment and control systems, well-designed circuit boards have a strong applicability. At present, due to the PCB board processing production and manufacturing technology has been very mature, the price is also very reasonable.
C, In the PCB for uniform design, printing and molding, it has a strong functional stability, can ensure a long service life. For mechanical equipment, often directly determine the performance and quality of the circuit board itself, depending on the service life and quality of the equipment, it is very important to choose PCB printed circuit board manufacturers with excellent manufacturing technology and product quality.
With the development and construction of 5G communication, there is an increasing demand for high frequency circuit boards in the electronic equipment industry. High-frequency boards are special circuit boards with high electromagnetic frequencies, which are used for high-frequency (frequency greater than 300MHZ or wavelength of less than 1 meter) and microwave (frequency greater than 3GHZ or wavelength of less than 0.1 meters) PCBs, and they are circuit boards produced by using the common rigid circuit board manufacturing method or by using a special processing method. Generally speaking, high-frequency boards can be defined as circuit boards above 1GHz.
With the rapid development of science and technology, more and more devices are designed to be applied in the microwave frequency band (>1GHZ) or even in the millimeter wave field (30GHZ), which means that the frequency is getting higher and higher, and the requirements for the circuit board substrate are also getting higher and higher. For example, substrates need to have excellent electrical properties and good chemical stability. As the frequency of the power signals increases, the signal loss on the substrate is required to be very low, thus highlighting the importance of high-frequency boards.
