Solder Overlap Method for Wonderful PCB
This method of testing reduces the line width and bottom millimeter spacing by 0.30, and the lines do not fit into the millimeter slices occupied.
PCB Method
Simple lines and no deformation. Trim the negative part and position it according to the applicable method, which is suitable for copying. Only suitable for relatively simple graphics, not suitable for 0.2mm wire. Lines and unusual negatives.
PCB Hanging Method
When working on the background film, the exposure and exposure conditions can be the same as those on the set, and it should be used in an environment where the film is covered and protected from light, as well as in the film, or it may not be deformed.
PCB Copy Board to Change the Hole Position Method
First compare with the length test board, measure the length and length of the test board, and adjust the shape of the length test board according to the developer and extensive adjustment holes.
The work of the piece: while maintaining the complete and precise volume of the strokes.
The downside is that the correction effect on the negative film with serious deformation and uneven deformation is not large.
photography
Use the Camera to Zoom in or out of the Shape.
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