1. Preparing the artwork by design schematics and layout using Orcad software or other software.
Schematic diagram
Routing
2. Make film processing using photoplotter to process a film.
Photoplotter machine
Film
3. Cutting the PCB depend on circuit design size using PCB shear cutter.
PCB shear cutter
4. After cutting process finished, take out PCB board and wash the board under tap with scotch brite. Repeat process until PCB board clean and free from finger print.
PCB board
5. Apply dry film photoresist on copper PCB board surface by using laminator. Make sure there is no bubble after laminated. This is because to avoid broken circuit.
Dry Film photoresist
Laminator
6. Transferring the layout or artwork onto copper board using UV exposure process.
PCB board prior to UV exposure process
Apply the film that we do before entering the UV machine
UV machine
PCB board after UV exposure process
7. Developer process-remove the exposed photoresist using Rota spray developer. the parts that are to be etched should look like completely clean copper, no residue. A well developed board should have solid traces and a clean copper background. Before process to next steps, ensure that the circuit is connect properly. If not, connect the circuit using PCB maker.
Rota spray developer
PCB maker
8. Etching process-the board is placed in an etcher, which is a machine that washes warm ferric chloride over the board, eating away any exposed copper.
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| Etching machine |
PCB board in etching machine
9. Photoresist stripper- this process will remove all the photoresist from the etched circuit board revealing the copper that makes the circuit on the board.
Photoresist stripper machine
10. DONE!!!!!!!!
PCB board
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