Printed Wiring Board Cloning Preciseness

About Printed wiring board cloning preciseness issue, there are two determined items: one is the preciseness of cloning software, the other is preciseness of printed wiring board images. There are plenty of Printed wiring board cloning service companies in the market and their difference on preciseness is large, some has preciseness below 1mil while some others don’t have that high level of preciseness.

There will be no limitation on preciseness if apply 32 bits of floating points, so the most important fact is the scanning image preciseness from original picture. Let’s take an example, if the 5 inches photograph can be made through the picture taken by one million pixel resolution camera, then the image will be blur if the image be enlarged to 20 inches. So if the preciseness of printed wiring board is very high during cloning process, then higher DPI is required when scan it.

DPI means the point count per inch, which means the two points distance on the scanning picture, unit is mil; if the DPI is 400, then the distance between two points is 2.5mil, this is the precise value of cloning printed wiring board.

All in all, DPI must be set up before we proceed cloning, according to the density of printed wiring board’s track pattern, number of holes and pads, printed wiring board from mobile phone need to choose DPI value as 1000 since it will have track pattern with less than 1mil distance. Fortunately the scanning machine on the market are all capable of satisfy this requirement.

The higher the DPI, more clear the scanning picture can be, but the only problem is higher DPI will also require better performance on hardware when cloning printed wiring board. So the value of DPI installation value should vary according to the product applications.

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