PCB News - History Of PCB

How much do you know about printed circuit boards in today's increasingly advanced science and technology? Let's take a look at the history of PCB.

Printed circuit board, commonly abbreviated as PCB(Printed Circuit Board), is an important electronic component, a support body of electronic components, and a provider of circuit connection of electronic components.It is called a "printed" circuit board because it is made using electronic printing technology.

Before the invention of printed circuit boards, the interconnections between electronic components depended on direct connection of wires to form complete lines.At present, circuit boards exist only as effective experimental tools, and printed circuit boards have become the absolute dominant position in the electronics industry.In the early 20th century, in order to simplify the production of electronic machines, reduce the wiring between electronic parts, reduce the production cost and other advantages, people began to study the method of replacing wiring by printing.

For 30 years, engineers have proposed wiring insulated substrates with metal conductors.The most successful was Charles Ducas of the United States in 1925, which printed wiring patterns on insulating substrates and then electroplated conductors for wiring.It wasn't until 1936 that The Austrian Paul Eisler published foil-film technology in Britain, using printed circuit boards in a radio device;In Japan, palace this pleased help to spray the attached wiring method "メ タ リ コ ン blowing wiring method (chartered 119384)" successful apply for a patent.Of the two, Paul Eisler's method is the most similar to today's printed circuit boards. This method is called the subtracting method, which removes unwanted metal.

And what Charles Ducas and Kiyosuke Miyamoto did was he just added the wiring that he needed, which is called the addition method.However, because of the high heat generated by the electronic components at that time, the two substrates were difficult to be used together, so there was no formal practical application. However, the printing circuit technology was further advanced.