What is custom made PCB?
Printed Circuit Board (PCB) is an important electronic component, a support body for electronic components, and a provider of electrical connections for electronic components. Because it is made by electronic printing, it is called "printed" circuit board.
As electronic equipment becomes more and more complex, the need for more and more parts of nature, PCB line and parts are more and more dense. A bare Wiring Board (with no parts on it) is also often referred to as a "Printed Wiring Board (PWB)." The substrate of the board itself is made of a material that is insulated, insulated and not easily bent. The thin wires that can be seen on the surface are copper foil, which originally covers the whole board, but is etched away in the middle of the manufacturing process, leaving behind a network of tiny wires. These lines are called conductor patterns, or wiring, and are used to provide electrical connections for components on a PCB.
Usually, the color of PCB is green or brown, which is the color of solder mask. An insulating layer that protects the copper wire and prevents parts from being welded to the wrong place. A layer of silk screen will be printed on the solder resistance layer. It is usually printed with words and symbols (mostly white) to indicate the positions of the parts on the board. The screen printing surface is also known as the icon surface (legend).
The history of the PCB
The printed circuit board was invented by Austrian Paul Eisler, who used it in a radio device in 1936. In 1943, the Americans put the technology to extensive use in military radios. In 1948, the United States officially recognized the invention for commercial use. It was not until the mid-1950s that printed circuit plates were widely adopted.
Before printed circuit boards, electronic components were connected directly by wires. For now, the circuit breadboard exists only as a useful experimental tool; Printed circuit board (PCB) has occupied the absolute dominant position in the electronic industry.
