PCB files

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Postby pcbann » Fri Aug 30, 2013 12:00 am

PCB


Stands for "Printed Circuit Board." A PCB is a thin board made of fiberglass, composite epoxy, or other laminate material. Conductive pathways are etched or "printed" onto board, connecting different components on the PCB, such as transistors, resistors, and integrated circuits.

PCBs are used in both desktop and laptop computers. They serve as the foundation for many internal computer components, such as video cards, controller cards, network interface cards, and expansion cards. These components all connect to the motherboard, which is also a printed circuit board.

While PCBs are often associated with computers, they are used in many other electronic devices besides PCs. Most TVs, radios, digital cameras, cellphones, and tablets include one or more printed circuit boards. While the PCBs found in mobile devices look similar to those found in desktop computers and large electronics, they are typically thinner and contain finer circuitry.

NOTE: PCB may also stand for "Process Control Block," a data structure in a system kernel that stores information about a process. In order for a process to run, the operating system must first register information about the process in the PCB.(pcb.hqew.net)


PCB files


The information for the photo plots of the PCB layout are outputted in the form of Gerber files. This format is the standard for PCB files and they are a form of numerical control file that is used by a photo plotter. In addition to the Gerber files, drill information is also generated along with the screen print and photo-resist information.
One major element in the cost of a printed circuit board is the drilling. In any design some holes are required for fixing as well as those required for any conventional components needed. However to reduce costs it is wise to use as few hole sizes as possible. In this way the drill will need changing less and time can be reduced.

PCB overview

Once complete the information for the PCB will be used in many areas of the manufacturing process. Not only will it be used for the manufacture of the actual PCB itself, but the files will also be used in other areas of the manufacturing process. They may be used to develop a pick and place programme, and in addition to this the files may be used in the manufacture of a PCB solder mask for adding solder paste to the board prior to component placement. The files may also be used for developing various forms of test programme such as an "In-Circuit Test" (ICT), and particularly in developing any bed of nails test fixture. In this way, the PCB design is a crucial element of the whole manufacturing process for any product. The PCB design is more than just a design for the basic board.
Attachments
pcb.hqew.net.jpg
pcbann
 
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Postby woldig » Fri Aug 30, 2013 12:00 am

Hi guys!

What are you trying to tell us?
woldig
 
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