Project:PCB Making: Difference between revisions

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Note in this cross section, black in the transparency layer represents a via (trail) on the left and a pad (where a component pin  will be soldered) on the right.
Note in this cross section, black in the transparency layer represents a via (trail) on the left and a pad (where a component pin  will be soldered) on the right.
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1. The artwork (printed onto a transparency) is placed over the photoresist copper-clad board and exposed to UV light. (8 minutes)
1. The artwork (printed onto acetate or paper) is placed over the photoresist copper-clad board and exposed to UV light. (8 minutes)
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[[File:UV_Exposure.jpg|400px]]
[[File:UV_Exposure.jpg|400px]]
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