The Heart of Modern Technology

Technology has a direct impact on society and how we live. And the flip-side of that is, the way we live and our culture has a direct impact on technological developments. Technological advancements have resulted in improvements in every aspect of life and as improvements are made there is also a greater use of technology. Not only does the government invest billions of dollars in new technology, but it also imposes regulations related to the industry.

Some technological advancements have come about almost by accident. In the development of one improvement another may be created or discovered. Others are developed very deliberately, such as those in response to medical needs. Even the military has contributed to technological developments.

Modern technology relies on electronic components, including aviation components, semiconductors and computer peripherals such as a printer, scanner, modem, or CD-ROM drive.

From computers to gaming systems, all electronic equipment depends on components such as microprocessor chips and transistors, and semiconductors are the central element of these components. Any item that uses radio waves or that is computerized relies on semiconductors.

The Role That Silicon Plays

Most semiconductor chips are created with silicon, which is the main element in sand and quartz. Silicon has four electrons in its outer orbital, which allows the formation of crystals. The silicon crystalline form is a metallic appearing substance that is silver in color. Perfect covalent bonds are formed with neighboring atoms, creating a lattice. Because no electrons are left free to conduct electric current the silicon crystal is an insulator, not a conductor.

The Doping Process

Silicon can be changed into a conductor through a process called doping. This is a way of mixing a small amount of an impurity into the silicon crystal. This can be either an ‘N-type’ impurity or a ‘P-type’ impurity. A very small amount of either of these impurities will turn a silicon crystal from a good insulator into a semiconductor.

The simplest possible semiconductor device is a diode. These devices allow current to flow in one direction but not the other. Diodes can be used in a variety of ways including protecting a device by inserting a battery backward. The diode will block any current from leaving the battery, which protects sensitive electronics in the device.

Switching With Transistors

A technology related to the diode is the transistor. These devices look like two diodes back-to-back and they can act as either a switch or an amplifier. Applying a small current to the center layer of the transistor will result in a much larger current flowing through the device. This is what gives the transistor its ‘switching’ behaviors. The addition of a small current can turn a larger current on and off.

Bits, Bytes & Boolean Gates

A single silicon chip can hold thousands of transistors. This allows the creation of Boolean gates, which can lead to the creation of microprocessor chips. Boolean gates are based on what is called ‘Boolean logic’. This logic relies on bits and bytes, which are measurements or file sizes. Bits are almost always bundled into 8-bit collections called bytes. Boolean logic is relatively simple. With 3, 5, or 7 simple gates, combinations can be built that will implement any digital component imaginable.

Shopping For Electronic Components

This same technology is used in all types of electronics. In fact, the natural progression from silicon to doped silicon to transistor to chips is why microprocessors and other electronic devices have become so inexpensive. In addition to the low prices of electronic components, there are basically no quality issues related to stability and reliability of name brand components.

Making purchases from well-established manufacturers will help ensure precision and superior quality. Even so, buyers should be aware that in every industry, some products may be created with minor defects.

Buying electronic components online from a preferred source will provide customers with quality products at a competitive price, and in most cases, the product can be delivered very quickly. StL & Associates is a very reputable online resource, recognized for the fact that its standards meet and exceed the highest levels in the industry.

When electronic component purchases are made over the Internet the products go through several quality assurance checks. They are initially inspected during the manufacturing process and again before they are shipped out to consumers. Most leading online dealers strive for superior customer service and satisfaction. This is their assurance of continued success and repeat customers. And shopping online allows buyers to select from countless products that are listed in an organized, easy to find manner.