The earliest use of printed circuit boards is paper-based copper-coated printed boards.

Demand for printed boards has risen dramatically since the advent of semiconductor transistors in the 1950s. Especially with the rapid development and wide application of integrated circuit, the volume of electronic equipment is getting smaller and smaller, and the density and difficulty of circuit wiring are getting bigger and bigger, which requires the printed board to be updated constantly.

At present, the variety of printed board has developed from single panel to double panel, multilayer and flexible board; The structure and quality have been developed to the degree of ultra-high density, miniaturization and high reliability. New design methods, design supplies and board - making materials, board - making technology continue to emerge.

In recent years, a variety of computer aided design (CAD) printed circuit board applications have been popularized and promoted in the industry, in specialized printed board manufacturers, mechanized, automated production has completely replaced manual operation.

Xinji circuit has advanced production equipment: automatic copper - electrographic - etching production line, LDI line automatic line exposure machine, CNC drilling machine imported from Taiwan, text printing machine, etc. The company continues to develop and improve the technology, adhere to the high quality products, reasonable prices, on time delivery of the service concept, after years of efforts, in the customer support and the efforts of the company staff, the production of circuit board products have been recognized by the majority of customers and praise!