Shenzhen Yihang Precision Circuit Co., Ltd. was founded on February 25, 2010. Since its establishment, it has been focusing on the research and development, design, production and sales of FPC flexible circuit boards as one of the high precision and high quality comprehensive company.

Flexible PCB – Flexible Printed Circuit, referred to as FPC. It is made into conductor circuit patterns using light pattern expose transfer and etching processes on the surface of a flexible substrate. The surface and inner layers of double-sided and multi-layer circuit boards are electrically connected through metalized holes. The surface of the circuit pattern is protected and insulated by the PI and glue layer.

Flexible circuits (also variously referred to around the globe as flex circuits, flexible printed circuit boards, flex print, Flexi-circuits) are members of electronic and interconnection family. They consist of a thin insulating polymer film having conductive circuit patterns affixed thereto and typically supplied with a thin polymer coating to protect the conductor circuits. The technology has been used for interconnecting electronic devices since the 1950s in one form or another. It is now one of the most important interconnection technologies in use for the manufacture of many of today's most advanced electronic products.

Rigid-Flex printed circuit boards are boards using a combination of flexible and rigid board technologies in an application. Most rigid flex boards consist of multiple layers of flexible circuit substrates attached to one or more rigid boards externally and/or internally, depending upon the design of the application. The flexible substrates are designed to be in a constant state of flex and are usually formed into the flexed curve during manufacturing or installation.