Advantageous information about the fabrication of PCBs!
All modern technology based electronic devices contain printed circuit boards as a basic building block of the intended functioning unit. All electronic devices with automated, semi-automated, intelligence and interactive features are designed with PCBs. Printed circuit boards are vital part of various end-user electronic products such as TVs, washing machines, microwaves, video games, refrigerators; telecommunication gadgets such as two-way walkie-talkies, aircraft radios; military devices such as fire control and missile guidance systems; medical industry equipment such as X-ray machines etc. Letsâ€™ understand the concept of the most important part of todayâ€™s electronic industry, printed circuit boards. In PCBs, circuits or conducting pathways are made by a thin layer of copper deposited on the surface of the substrate, an insulating board. Different electronic element are positioned on the surface of the insulating board and soldered to the connecting tracks. Contact figures on the sides of the board provide connectivity to the other printed circuits boards or to the external electrical units such as on/off switches. These complicated systems that are the part of various electronics (as we discussed before) are developed by PCB assembly services. They are the professionals who have significant experience to work in this field and help you to build an electronic product with complete accuracy and competence. They are the experts that depending upon your specifications can fabricate PCBs of various complexity levels. Depending upon the complexity of circuits integrated on the board, PCBs can be categorized into three main types that are: Single-Sided; Double Sided; and Multi-Sided. Single-sided substrates have electronic parts on one side and circuits on the other side. When density of components become so high that it becomes impossible to place all of them on the one-side of the board then double-sided board are used. In this category, the components are placed on the both side of insulating board and electrical connections between the conducting paths are formed by the drilling holes through the board surface in the proper positions and coating the inner side of the hole with a conducting material. The third category that is multi-layered has a board that is fabricated with the two or more layers of the printed conducting pathways separated by an insulation material, Pre-Preg , placed between the two different layers of circuits.
The components on a PCB are joined to the conducting paths by following two different techniques including the traditional “Through-hole-technology” and conventional “Surface-mount technology”. With the former technology, each electronic part has a wire attached to it which is passed through the drilled holes in the board and linked to the interconnecting circuits on the other side of the board. With the surface-mount technology, short J-shaped or Lshaped pins or legs on each electronic piece are connected to the printed circuits directly with a solder paste. PCB Assembly Services providers are the professionals that ensure the formation of correctly functioning electronic product by providing high-quality PCBs.
Published on Aug 29, 2013
All modern technology based electronic devices contain printed circuit boards as a basic building block of the intended functioning unit.