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4 layers PCB with IPC CLASS3 acceptance standard

4 layers PCB with SHENGYI S1000-2

4 layers PCB with impedance control

4 layers PCB with ENIG finish

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Impedance is the combination of the capacitance and inductance of a circuit when operated at high frequency. Control impedance in printed circuit boards are used across a broad range of applications to help ensure high signal integrity. Basically there are usually three types of impedance in PCB designs like single-ended impedance, differential impedance and coplanar impedance.

The factors affect impedance include: impedance trace width/spacing, copper thickness, dielectric thickness on either side of the impedance traces, dielectric constant of the core and prepreg material etc.

The applications of impedance control PCB include RF communication, Signal processing, High quality analog video, Computing 100MHz and above, Telecommunications and so on.

A large proportion of multilayer PCBs that A-TECH manufactured are with impedance control requirements, normally we will calculate impedance based on stack up and gerber designs to match with specified impedance values, our engineering dept might do necessary adjustments on stack up or impedance trace width/spacing if there is any mismatch after calculation. Moreover, the impedance coupons will be placed in each working panel which use for testing impedance values before shipment.

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We strictly control edge plating pcb every link from raw material selection, production and processing to finished product delivery, and do not miss every detail to ensure that all edge plating pcb finished products have excellent quality.

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We have a professional production management team, an independent production and processing workshop and advanced production technology, providing strong support and guarantee for the production of press fit pins pcb with reasonable structure, excellent performance, safety and reliability.

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A-TECH CIRCUITS Co., Ltd. Introducing and learning foreign advanced technology and experience, combined with the company's own situation, developed a set of quality management system of its own, not only that, we also have multiple assembly lines for simultaneous production to ensure press fit pins pcb high quality At the same time, the output is also high.

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edge plating pcb Produce in strict accordance with the standards stipulated by the company and the requirements of the market to ensure that it can pass the inspection of relevant state departments and meet the national quality standards. It is a high-quality product with guaranteed quality.

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A-TECH CIRCUITS Co., Ltd.'s edge plating pcb uses high-quality materials, and the overall product has a texture, coupled with professional structural design, not only stable performance, high quality, but also easy daily maintenance and care.

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edge plating pcb Select high-quality resin raw materials, refined by advanced manufacturing technology, with good load resistance and impact resistance, strong and durable, and long service life.

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