61285
Description
Mind Map by 08sarginson_re, updated more than 1 year ago
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Created by 08sarginson_re
almost 11 years ago
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PCB manufacture
- Photo-etch method
- 1. draw the
circuit on to
a mask
- 2. The mask is
then placed on the
board, which has a
thin coating of
copper, and the
circuit diagram
transferred onto the
board using an
etch-resist.
- alternatively, a
photosensitive
board is
covered by the
mask and then
exposed to
light.
- alternatively, a
photosensitive
board is
covered by the
mask and then
exposed to
light.
- 3. The circuit is
then etched
onto the board
using ferric
chloride in an
etching tank.
- 4. Next, a small
PCB drill is used
to drill out the
centre of the
pads
- 5. the
components are
pushed through
the board and
soldered in
place.
- 1. draw the
circuit on to
a mask
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