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Three types of printed circuit board construction

Date Added: July 26, 2012 05:38:15 AM
Author: Job Dickinson
Category: Business & Economy

In devices ranging from common beepers, or pagers, and radios to sophisticated radar and computer systems, there is a printed circuit board, or PCB found. PCB is a self-contained module of interconnected electronic components. The circuits are formed by a thin layer of conducting material deposited, or "printed," on the surface of an insulating board known as the substrate. On the surface of the substrate individual electronic components are placed and are soldered to the interconnecting circuits. There are contact fingers along one or more edges of the substrate and they act as connectors to other PCBs or to external electrical devices such as on-off switches. A printed circuit board may have circuits that perform a single function, such as a signal amplifier, or multiple functions. According to engineers who are working on pcb design services and engineering, there are three major types of printed circuit board construction: single-sided, double-sided, and multi-layered. Single-sided boards have the components on one side of the substrate. A double-sided board may be used at times when the number of components becomes too much for a single-sided board. on each side Electrical connections between the circuits are made by drilling holes through the substrate in appropriate locations and plating the inside of the holes with a conducting material. a multi-layered board which is the third type, has a substrate made up of layers of printed circuits separated by layers of insulation. The components on the surface connect through plated holes drilled down to the appropriate circuit layer. This greatly simplifies the circuit pattern. For more details visit our site: http://www.enventureonline.com/services/electronic-design/pcb-design-services.html
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