WEEK 6

TITLE: Making etching pcb board uv.

METHOD: 

1.Buy the Printed Circuit Board (pcb) uv at Jalan Pasar.

• Cut the pcb using the machine cutter.

Pcb Board Uv.

MACHINES CUTTER

2. In the circuit drawing pcb express software. Then, print using film circuit that has peeped that.

Circuit that has peeped on paper film.

3. Pcb that has peeped print using uv panel.

• Tear off the black protection film on the board.
•  Attach the circuit artwork on the UV PCB board.
•  Expose the board in the exposure box for 60 seconds.

UV PANEL.

3a). Put the acid in the former and  put 5 seed acid. This proses to destroy  the cooper.

• Immerse the box after completely into developer liquid container.
• Agitate the board until the circuit can be seen clearly.
• Rinse and rub the board with water. 

CIRCUIT THAT HAS COMPLETED ETCHING.

CONCLUSION:

A PCB populated with electronic components is called a printed circuit assembly (PCA) , printed circuit board assembly or PCB Assembly (PCBA). In informal use the term 'PCB' is used both for bare and assembled boards, the context clarifying the meaning.

Alternatives to PCB's include wire wrap and point-to-point construction.PCB 's must initially be designed and laid out, but become cheaper, faster to make, and potentially more reliable for high-volume production since production and soldering of PCB's can be automated. Much of the electronics industry's PCB design,assembly, and quality control needs ae set by standards published by the IPC organizations.