Impedance Control in Flexible Printed Circuits

Maintaining signal integrity is critical when transmitting or receiving large volumes of data. As digital devices such as smartphones and digital cameras continue to evolve with higher resolutions, and as FHD/4K video becomes standard in broadcasting and streaming, the importance of high-quality signal transmission has never been greater.
A key factor in ensuring signal integrity is the design of transmission paths with controlled characteristic impedance. One familiar example is coaxial cable used in TV antennas, which is precisely controlled to 75 ohms for optimal signal performance.

Just like coaxial cables, impedance-controlled transmission lines are essential on circuit boards － especially for high-speed interfaces such as HDMI (for video and audio) and USB.
Our FPCs (Flexible Printed Circuits) are lightweight and thin, yet capable of incorporating impedance-controlled signal traces. We achieve this through careful design simulations and validation using physical prototypes to ensure high-performance signal transmission.

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