A Brief History of Printed Circuit Board Design

by Tom C. Self Employed, Content Writer Paul Eisler was an Austrian engineer who invented printed circuit board design. It was the year 1936 when he proposed the design while working on a radio set. However, the concept received popularity in the United States not before 1943. It was the USM (United States Military) that benefitted mostly from the PCB designs. They introduced PCB design in development of radio sets for their troops. These radio sets were developed exclusively for war usage purpose. However, the design slowly achieved popularity by the beginning of the 50’s era. The commercial business sector slowly started to feel its importance. However, the upsurge in commercial sector started only after PCB designs were made public by the US government. Prior to the use of printed circuit board design by commercial and military sectors, concept of point to point construction was quite popular. But with the launching of prototypes, it became common for the businesses to utilize the wire trap or turret boards to use them for lower production purpose. Nearly sixty to seventy years ago when technological advancement was not up to the mark, a large part of electronic components featured wire leads & circuit design boards featured tiny holes specifically for the wires to go through. At first, the wires present were properly put through these holes & then soldered onto the PCB trace. This assembling method was popularly referred to as hole construction. It was not before 1949 that auto assembling procedure was introduced in the market. The concept was designed by two officials from the US army. In this assembling procedure, leads of electrical components need to be inserted into a special copper foil made interconnection pattern. Then, through the help of dip soldering, the attachment would be made. The processes of etching & board lamination however, came out at a much later stage. Once the etching process came up, they were incorporated into pcb design bureau procedure. Standing at this present era, it can be said that a lot of modern-day manufacturers prefer to use this process. Soldering was a difficult stage. It was made possible passing the board through a wave of melted solder material. A proper wave soldering machine was required to carry out the procedure properly. However, the process is very expensive and required higher efforts to incorporate. Use of surface mounted parts are preferred more in this modern era because of it requires less money and effort investment.

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Created on Dec 31st 1969 18:00. Viewed 0 times.

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