Electronics Knowhow

Printed Circuit Boards are also called a PCB. They are inexpensive boards that are used to connect electronic components. They are often made under high volume production through the electronics industry. Quality control of these boards are maintained through the IPC.

The materials that are used to comprise PCBs are usually made from a copper conduit layer that contains an overlay of laminate. The laminate that covers the board is usually made from an epoxy resin, which is somewhat like a hard plastic. Most of these products are green in color due to the resin that is used to cover the board, which is a green epoxy. However, there are other colors that are available through different types of laminating materials. These materials include cotton paper mixed with epoxy as well as woven glass with epoxy. The standard for creating PCBs, when it comes to materials, is using a thin layer of copper along with a green mask epoxy.

There are a process of electroplating steps that are then used in the board, depending upon how the board is going to be used. These include silk screen printing as well as photo engraving. These processes either etch out the unwanted copper or use a chemical etching process to remove the copper foil.

Some of the printed circuit boards are comprised of several thin boards put together, these are usually known as multi layer boards. Once the PCB is created, the PCBs are mounted with the various components that are needed in order to get them to work properly. These boards are used in most aspects of the electronics industry and have been around for over 100 years.

Companies that create printed circuit boards can create them specifically for the intention of the customer as well as their needs. Those who have a business in the electronics field can hire a company to create a custom board for their company with the exact specifications that they need to operate their electronic equipment. The printed circuit board will be created from both the conduit and non-conduit materials, provided with the correct electronic components and then tested to make certain that it works properly. It will then be protected in packaging for delivery to the customer.

Businesses can easy find online companies that will be able to provide them with custom printed boards online. As most printed circuit boards are all created from the same type of materials, it often pays to get the boards from an online dealer rather than through a computer or electronics stores.

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Probably, most people who use a personal computer today really don’t spend much time thinking about perhaps the most important component of the computer, it’s microprocessor. Knowing what computer processors are made of, though, can be quite interesting mainly because it helps to reveal how these little wonders work and what they really do for the computer itself.

For starters, a processor – whether it’s a micro version or one of a number of other processor-type devices – is more technically called a central processing unit, or CPU. Basically, it’s the brain of the computer and what it does is process numeric data. This data is in the form of binary numbers, meaning that it is endlessly reading nothing but ones and zeros and then executing instructions from that data.

These ones and zeros essentially mean ‘true’ (1) and ‘false’ (0), though the things that can be done with vast and endless sequences of ones and zeros is truly impressive. The very first microprocessor, which was a great improvement in terms of evolution from its processor parent, was invented in 1971 by a manufacturer that is now the most dominant in the world at making these little things.

The basic materials used to make a processor or microprocessor today really haven’t changed all that much from 1971, though their power and capabilities have grown to truly impressive levels and promise to grow even more in the years to come. At its heart, the major material of every CPU is silicon. Sand found on the beach is also made of this versatile and useful material.

This isn’t to say that sand, however, is what is used to make silicon because only the purest of this material is ever used in a processor or microprocessor. Another common material that’s used in the manufacture of all processing units is copper, which has lately supplanted aluminum for a number of engineering and physics-related reasons. Silicon is chemically purified and then prepared for the next step.

Once the silicon has been purified and melted down a special ingot of silicon is created that’s only about 300 mm wide, at most. After that ingot is manufactured it’s then ground into a perfectly round cylinder which is sliced into wafers. It’s on the surface of these wafers that a mirror finish is applied. At every point in the process, quality control is applied rigorously.

There’s a lot more that goes into the making of processors, of course, but it’s helpful to understand that without this specially-made form of silicon the modern processing device that helps to control the functions of a computer, cellular phone, video game or other devices just wouldn’t be possible, and there also wouldn’t be a high wage-earning place called Silicon Valley!