Circuit Board Assemblies

It takes a lot of hard work to create new circuit board assemblies when you are getting ready to start a new project. They all start the same way someone has a need for a new product or device that has never been made before or someone needs and old device upgraded. Whatever the need is someone has to sit down at the drawing board and come up with the schematics. At one time the schematics for all circuit board assemblies were all hand drawn on large sheets of paper and required a good eye and a steady hand. Today the schematics are all drawn using the latest EAD or PCB CAD programs on high resolution computers, making it much easier to create infinitely more complex designs than could ever be done by hand. Not only are they easier to create but they can be stored on a disk and sent out to be manufactured much more quickly. Once the information for the new circuit board assemblies arrives at the manufacturer the information is loaded into their computers and the process begins.

Printed circuit boards are created by taking a sheet of insulating material such fiberglass that has been covered with a thin sheet of copper on each side and etching the pattern onto the copper. This accomplished by creating a negative of the pattern and painting it onto the copper using a special paint. Once this paint has dried the pattern for the circuit board assemblies is etched out of the copper by using a special type of acid etching solution. The disk also contains all of the information needed to set up a CNC computer controlled drill that will put all of the component locator holes into the board quickly and precisely. In the old days a layer of lead solder was added to help create the correct pathways for current to flow between components. Today a computerized machine lays the components in their proper locations and then completes the soldered connections eliminating the risk of cold or non -conductive joints. This was a very common problem when soldering was all done by hand.

A fully assembled prototype of your project is then sent to the testing lab to make sure that the circuit board assemblies meet with the criteria that you sent along with the design. These assemblies are also tested to make sure that all of the connections are good and in many cases tested to see if they work. With some assemblies the testing has to be left to the company who designed it simply because they are a small part of a much larger project and will only work when installed in the finished product. If you are in the business of creating new electronics devices or creating upgrades to old ones but do not have the facilities to manufacture them you need Carr Mfg. Their only business is making electronics components from cables to circuit board assemblies and finished products. You can count on them to provide you with the best possible service and the highest quality products with every order you send their way.