Circuit board

What is PCB?
A printed circuit board is a physical technology that enables electrical or data circuits to be built on a horizontal layer of material. Advances in printed circuit boards have resulted in new methods of design and manufacture for these types of devices.

Before the advent of the printed circuit board (PCB), engineers often used point-to-point design to create these pieces of hardware. From the early 20th century, printed circuit boards became the norm. In the design of printed circuit boards, manufacturers use a variety of techniques, including milling, to manipulate copper and other layers of material to create sophisticated circuits on a printed circuit board. Chemical etch and manipulation material layers with precise laser technologies are other ways modern printed circuit boards are designed.