Manufacturing of PCB has been simplified through innovation and advancement in technology. You will require a photo resist board which forms the basics of the entire assembly. This is a piece of glass with reinforcements made of plastic. On the one end is a photo sensitive copper coating. It is by peeling this plastic film that one reveals the photo sensitive coating.
The printed circuit board that is already transparent goes below the photo resist board. These two boards should be of the same size. The sensitivity of this surface is arrived at by removing the plastic film. The boards should be aligned to ensure that your tracks do not end up in any other way apart from what you intended. This is the level of manufacture that prepares the board for placement into the UV light box.
An appropriate cover should be placed on the box to ensure that it is completely shut. The UV light box is then switched on and left to run for approximately two and a half minutes. Plastic tongs will be used to get the board out of the box after which it is placed on a tank ready for development. The approximate time the board should be left in the box is ten seconds. It should not exceed this limit or go below it by considerable margin.
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 will take approximately fifteen minutes. Under-etching exposes the board incomplete development while it will get damaged when etching is overdone. The tracks are likely to be removed in the process. The process of manufacture should be monitored by the minute and will eventually be mastered.
Incorporation of Auto CAD system or Computer Aided Design in the process makes it simple and thus easier to complete. Data inscription is easy which makes transfer to manufacturers much easier. This automated system is able to earmark and define your required copper layers. Component notifications and soldier marks are also easy to identify using the automated system.
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 not complete until profiling or V-cut scoring is done. This is done from the production panel. A scoring machine is used in this process. Cutters are either above or below the panel. The cut is made at a third of the entire thickness in order to leave a film that connects the board together. The board is then checked thoroughly by an experienced person to ensure that everything is in order.
The printed circuit board that is already transparent goes below the photo resist board. These two boards should be of the same size. The sensitivity of this surface is arrived at by removing the plastic film. The boards should be aligned to ensure that your tracks do not end up in any other way apart from what you intended. This is the level of manufacture that prepares the board for placement into the UV light box.
An appropriate cover should be placed on the box to ensure that it is completely shut. The UV light box is then switched on and left to run for approximately two and a half minutes. Plastic tongs will be used to get the board out of the box after which it is placed on a tank ready for development. The approximate time the board should be left in the box is ten seconds. It should not exceed this limit or go below it by considerable margin.
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 will take approximately fifteen minutes. Under-etching exposes the board incomplete development while it will get damaged when etching is overdone. The tracks are likely to be removed in the process. The process of manufacture should be monitored by the minute and will eventually be mastered.
Incorporation of Auto CAD system or Computer Aided Design in the process makes it simple and thus easier to complete. Data inscription is easy which makes transfer to manufacturers much easier. This automated system is able to earmark and define your required copper layers. Component notifications and soldier marks are also easy to identify using the automated system.
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 not complete until profiling or V-cut scoring is done. This is done from the production panel. A scoring machine is used in this process. Cutters are either above or below the panel. The cut is made at a third of the entire thickness in order to leave a film that connects the board together. The board is then checked thoroughly by an experienced person to ensure that everything is in order.
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