Steps Followed In Manufacturing Of PCB
Technology has simplified manufacturing of PCB. The procedure is more innovative and utilizes advanced technological aids to achieve the best results. Assembly begins with acquiring the right photo resist board. It is made of glass and plastic used as reinforcement. One end has a copper coating that is photo sensitive. The photo sensitive surface will be revealed when the plastic film is peeled off.
The transparent printed circuit board is placed beneath the photo resist board. It is important to ensure that you select boards that are of equal size. It is the removal of the covering plastic film that makes the surface sensitive. Care should be taken to place the board in the right way. It will prevent the tracks from ending in the wrong way. These are the preparatory steps that make the board ready to be transferred into the UV light box.
An appropriate cover for the box should be sort to make it effective. Your board should be in the box for around two and half minutes after which it is removed. Plastic tongs should be used in handling the board considering that it is delicate during manufacture. It is then transferred into a specially prepared development box for about ten seconds. Allowing it to stay more than that exposes it to damage. The tracks may be destroyed completely.
Plastic tongs are used to hold the board during all these operations. It is transferred into an etching tank after carefully washing in clean water. Heating allows the bubble etch tank to complete a very important process. The process involves etching away all unwanted copper materials. You will only be left with carefully drawn tracks. Success during this stage demands constant checks.
Etching takes between fifteen and forty five minutes. Letting the board remain in the tank for too long is likely to damage the tracks. There is a possibility that those tracks may get removed or damaged. This calls for caution by ensuring that the entire process is carefully monitored, minute by minute. Experience will make the process faster and more accurate.
The layout for PCB is best produced using an auto CAD or Computer Aided Design system. This is a system that allows you to input your own data and later transfer it to your manufacturer. The system allows you to earmark and define the copper layers you need for each job. The component notations and soldier marks will also be clear.
Photo tools are prepared using laser photoplotters. A controlled dark room is the best environment for such work. It makes it easier to manage temperatures and humidity. Data for the board is turned into a pixel image making it easier to work with. The film is written using a laser writer. The film develops automatically and is unloaded by the operator.
Manufacturing of PCB is complete by V-cut scoring or profiling. This is best done on the production panel. You will require a scoring machine to accomplish this. The cuts are made at a third of the entire thickness to allow the board to remain intact. An expert should then check the entire board carefully to be certain that it meets all your expectations.
The transparent printed circuit board is placed beneath the photo resist board. It is important to ensure that you select boards that are of equal size. It is the removal of the covering plastic film that makes the surface sensitive. Care should be taken to place the board in the right way. It will prevent the tracks from ending in the wrong way. These are the preparatory steps that make the board ready to be transferred into the UV light box.
An appropriate cover for the box should be sort to make it effective. Your board should be in the box for around two and half minutes after which it is removed. Plastic tongs should be used in handling the board considering that it is delicate during manufacture. It is then transferred into a specially prepared development box for about ten seconds. Allowing it to stay more than that exposes it to damage. The tracks may be destroyed completely.
Plastic tongs are used to hold the board during all these operations. It is transferred into an etching tank after carefully washing in clean water. Heating allows the bubble etch tank to complete a very important process. The process involves etching away all unwanted copper materials. You will only be left with carefully drawn tracks. Success during this stage demands constant checks.
Etching takes between fifteen and forty five minutes. Letting the board remain in the tank for too long is likely to damage the tracks. There is a possibility that those tracks may get removed or damaged. This calls for caution by ensuring that the entire process is carefully monitored, minute by minute. Experience will make the process faster and more accurate.
The layout for PCB is best produced using an auto CAD or Computer Aided Design system. This is a system that allows you to input your own data and later transfer it to your manufacturer. The system allows you to earmark and define the copper layers you need for each job. The component notations and soldier marks will also be clear.
Photo tools are prepared using laser photoplotters. A controlled dark room is the best environment for such work. It makes it easier to manage temperatures and humidity. Data for the board is turned into a pixel image making it easier to work with. The film is written using a laser writer. The film develops automatically and is unloaded by the operator.
Manufacturing of PCB is complete by V-cut scoring or profiling. This is best done on the production panel. You will require a scoring machine to accomplish this. The cuts are made at a third of the entire thickness to allow the board to remain intact. An expert should then check the entire board carefully to be certain that it meets all your expectations.
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