KINGTECH TELL THE HISTORY OF PCBS
Over the last 50 years the technical components of PCs have been measured down to micro-levels. In the 1960s the PCB used in a typical calculator was comprised of around 30 transistors. Nowadays, the PCB of an average computer contains millions of transistors on one chip located that is located on the motherboard. These advances have enabled the loading of ever-increasing levels of functionality into smaller and smaller devices. Furthermore, parts like resistors and capacitors have reduced to fractions of their previous sizes.
The new capabilities modern PCBs offer have accustomed users to instant activations of every possible trigger. It is likely that users of today's computer or mobile device could be frightened by a five seconds delay for a particular task. One of the most obvious signs of PCB change is the evolution of video games. They have evolved from the basic Pong systems in the 1970s to real-time gaming that allows gamers to compete and race through modern gaming consoles.
The history of circuits printed on paper to an era long before they were designed. The wheels were spinning when Benjamin Franklin flew a kite into a storm and discovered the electrical power of lightning.
1850-1900
One of the most notable aspects in the last half-century of 19th century was the technological advances in leaps and leaps and. Following that of the Civil War, cities up and across on the East Coast and across the Midwest were equipped with electric power, which eliminated the need for coal and heating oil. As electricity became more widespread, suburban areas and rural areas were connected to the newly-established power grid. Oil, however, almost was no longer needed until the advent of automobiles introduced gasoline at the time of the turn of the century.
The development of electricity was the precursor to the arrival of light bullos, telephones and consumer cameras, which all came into the market in the latter quarter of 1800s. While the PCB existed in its own right during this time but the technology that paved the way for its eventual growth were mostly based in the latter part of the 19th century.
1900-1950
In 1903 German inventor Albert Hanson filed the first patent for a similar device to a PCB which he designed for telephone systems. It consisted of a flat conducting device that served as an insulating board with multiple layers. The board had through-holes and conductors both on the sides much as modern PCBs with plated through-holes. However, PCBs like this were not widely used in the new technologies of the 20th century's early years during which time there was the development of radios, phonographsand dryers, washing machines and vacuums.
The year 1927 was the time Charles Ducas patented a version of the circuit board. He employed a stencil to draw wires onto a piece of paper using conductive ink. He then positioned an electronic path directly on an uninsulated surface. The stencil was referred to as printed wiring which was the basis for the current electroplating.
As the reckless excess that was the Gilded Age sank with the Titanic and the devastation of the Great War humbled nationalistic sentiments Man's greatest victory against nature came with the invention of the aircraft. With the failure in Prohibition, Americans were more than ever eager to escape machines and go to the nearest pub to drink gin under Deco-style lighting.
The Great Depression, triggered by the crash in stock markets of the month of October, 1929 was another negative for PCB advancement. The crash brought the frenzied lifestyle in The Jazz Age to an end and set the stage for a period of chains gangs, bread lines, and cramped tenements in which families had no money to purchase extravagant items.
The first major change in PCB-like technology took place following the attacks on Pearl Harbor in December 1941 completely shook America. The military intelligence thought they could have stopped this tragedy in the event that they had State Department had been better equipped to communicate with the Honolulu military base, where signs of imminent danger had been looming for a while prior to.
When the United States was embroiled with World War II, U.S. military personnel encountered the British device, known as the proximity fuse. This device provided artillery shells with the ability to hit precise targets over vast expanses of sea and land
It was the U.S. military ultimately embraced and adopted the idea that was behind proximity fuse technology, improving the concept and making it appropriate as a mass manufacturing.
Paul Eisler had a background in printing and was intrigued by the thought of printing electronic circuits onto boards, rather than soldering wires on with a hand. Unfortunately Eisler was a Jewish Eisler was attracted by the development of Nazism and was forced to flee Austria in 1936 and move to the less-than-friendly boundaries of England.
In 1941 in 1941, Eisler, a U.K.-based Austrian inventor, Eisler who invented the PCB concept, further developed it by introducing a device using copper foil placed on the base of a non-conductive glass, that is believed as the very first printed circuit board since it was designed to foreshadow the current top and bottom copper insulation on PCBs.
He developed a radio equipped with PCBs which would later prove to be valuable for military use.
