PCB

The printed circuit board is one of the greatest inventions in terms of technology. The common applications of PCB assembly are television sets, radio sets, cellular phones and gaming gadgets.

PCBWhat is PCB assembly? What is it made from? A printed circuit board is the interconnection of electronic components attached on a non-conductive base. A printed circuit board has 2 basic parts, the thin leads and the substrate or base. The thin leads, electrically conductive, are commonly made of metal. The base or substrate is made of non-conductive materials. Some of the raw materials used to manufacture PCBs are laminates, copper foil, copper-clad laminates, and epoxy-coated glass fabric (known as prepregs).

There are 3 general types of boards: single-sided, double-sided and multilayered. The single-sided type has the leads or conductors attached on only one side of the board, while double-sided boards are types where conductors cross from one side to the opposite side of the substrate. Several layers of printed circuits make up the multilayered type.

PCB assembly is electrically done using different technologies. The two known methods are “surface-mount” and “through-hole” technologies. The first, the surface-mount technology, is a method where conductors are directly attached or soldered to the substrate. USB flash drives are an example of this technology.

The older method, through-hole method, uses the method of leads passing through tiny holes on the base, and soldered to connect to the circuits pads on the other side of the substrate. One perfect example of this type is the personal computer.

Who are the people behind printed circuit boards? PCB changed in many ways and continually changes up to this time, and many inventors and innovators are involved. Some of them are Albert Hanson, Thomas Edison, Charles Ducas and Paul Eisler. The German inventor, Albert Hanson, invented his version of the PCB in 1903. He made use of flat conductive foil placed onto an insulated board, which formed several layers.

Chemical method of plating conductors attached on linen paper was invented by Thomas Edison in 1904. Next is Charles Ducas who utilized inks, which are conductive of electrical charges, printed on stencils. This electroplating method of Ducas was invented in 1925. Paul Eisler of Austria invented the PCB for radio sets in 1936.

Eisler’s invention made it to the eyesight of the US Military during the Second World War. One of the greatest breakthroughs of PCB was during this war as it was used to detonate bombs, and used as proximity fuse. It gave way to the victory of the USA against Germany. The PCB concept became commercialized in mid 1950s. In 1961, Hazeltine Corporation patented their version of the Printed circuit board. Hazeltine’s design is through-holed and multilayered. Compound designs came out, in which modern-day PCB originated. Integrated circuit chips were invented in the 1970s.

PCB assembly in general continually improved, and more uses of the PCBs were discovered. Combination of modern manufacturing techniques and printed circuit designs resulted in great changes.

What are the common applications of the PCB? Way back, the PCB was used by the military to ignite bombs. In the modern world, almost every electronic apparatus is made of the PCB. PCB is the foundation of communication devices, gaming gadgets, appliances, automobiles, and many others. It is also applicable in large industries with electronic and automatic controls, like in power plants, and factories.

Wrapping it all up, the printed circuit board started small and unnoticed, yet made it today. At present, this intricate invention makes day-to-day life less complicated in the office, at home, in school, in factories, and in every place you know.

 

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Today whenever we talk of article writers we always associate it with content writers or web content writers.

article-writing-servicesThe reason for this is because many article writers are now writing for the web. In fact, every time you go online, there are companies or websites in need or writers or rewriters, whether it is freelancers or for full time basis. For those who are considering being an article writer, there are some things you need to know. First, there will be times that you won’t be getting any writing jobs.

This is the reason why many writers do not rely on one website alone.
What are the benefits of being an article writer? In the first place, freelance writers have a huge community.

This means they are not bound in a particular place. Not like those who work in the office, they need to get up at a particular time and travel in order to arrive at their place of work.

  • An article writer has no limitations. Who could have imagined that they can work and do the things they love even if they are stuck in the four corners of their homes?
  • Second, article writers are exposed to a wide variety of knowledge. They are beginning to learn more each day as they continue their research on a particular topic. In this case, they will not only give information to their readers but at the same time they will also learn themselves.Article-writing
  • Third, an article writer can have the freedom of choosing his own assignments. Not like in an office scenario or in a publication, it is the editors who will give you the assignments to write about.
    In this case, you have the freedom to choose which topic or assignment you want to write about.
    In a recent study, aside from the above mentioned benefits of writing, there are also some psychological benefits one can get from writing.

Here are some of them:

 

  • First, writing makes you happy. There are people who cannot express what they feel in words. The only way they can express it is by writing what they feel.
  • Second, writing leads to better thinking and understanding. Have you ever experienced talking to someone and then suddenly forgot what you about to say?
    Many people do experience this most of the time. In fact, some people say that what they are about to say is almost on the tip of their tongue. When writing your ideas people do not have to deal with these dilemmas that face their everyday life.
  • Third, writing helps you exercise your thinking and memory. As people age, they often experienced what others term as memory gap. This is true especially for old people. However, those who are in the article writing industry do not have any problem dealing with it. In fact, as they age their memory are becoming sharper because they are learning new things everyday. They are able to exercise their thinking prowess and develop it more and more.

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What does the future hold for article writers? There’s an article that says since there are new technologies being discovered every day, they would not be surprised if one day robots will be writing articles. If this is meant to be a joke this can be also a wake up call for everyone.

There are many sites looking for writers and there will not come a time that there will be a deficiency of writers. If we continue to improve ourselves and do the things we like, there is a very bright future for article writers here and all around the world.