The Mark and Board Making...

Assalamualaikum and Very good day of Friday..The leader of the days..

Dont you feel weird why i put The Mark first and its even in the title?

Because today Dr Kamal came into our class and he showed us the our class mark. Well, what i can say, overall  of the class is good but me? Not really good. It must be slack in some way such as late journal publish maybe.. But that for the first half of the semester and the next half? I'm going to score it and not to take it easy...

Depressing cat...hahaha

After Dr Kamal show the mark, i think i wanna to meet up with him to do something about the score but time is constraining me.

However, let that matter side for right now, let focus on the board making. Before the day of the board making, En Redzuan show us the way to create the board by showing the video of the board making. The first one is, after designing and printing the schematic, the procedure to make a PCB start. A good site for references.Create-Printed-Circuit-Boards and  homemade-pcbs . Credicted Homemade Pcbs for the picture..

Schematic..

Printed Schematic

First, make sure to use what board to use, either the single sided or the double sided board.
After decided board for the suitable schematic, the its come to UV ray to make the schematic on the board..

After UV

UV preparing!

Next, developing the circuit using the sodium solution that tear of the green layer of the PCB. To do this, we need to concentrate and cannot wandering around because, if we do it too long, even the schematic also can be wipe out.

After the developing, the etching come in, that is using acid Feric Chloride. its to remove the copper layer that not going to be use. Etching consume some time.

After that, we can choose to drill or to cut the board. The process of cutting is simple but the process of drilling need some precision on it. if not, then the board drill is not good.

Finally, the process of soldering the board with the component. The soldering part is very cautious work because if we dont, the copper gonna come out or the solder paste will be looking ugly and the component will not attach properly. Some references for soldering.. Soldering..

Next Class - Making Our Board

 On the next class, we need to practice what have we watch before. The time given is 3 hours but with the numbers of people in our class, that is not enough, However, Mr Redzuan came up with a plan by dividing the student into a group. Syahmi and I were in one group and we make the second board first,after the procedure  done till drilling the PCB, the time already at 4.45 p.m. and i'm just soldering the first board and even then, didn't manage to finish it up and Mr Redzuan said that is okay to bring it to hostel.

Overall its a Hectic and Tiring even tedious day because of the tension and stress feel when youre the first timer to do that but i have to forced my self and not to be a spoiled student and work harder! Thank you.