Binary 010101~~~

:) this is the last class for this semester.

Dr. Kamal taught us about logic in this class. he taught us about digital logic and also how to conduct binary number which is only contained number 0 and 1 .. huhu

I had recalled how to adding, substracting binary number that I had learnt during my secondary school and also in my foundation last time . It was interesting right because even the series of number only 0 and 1 ,, it give a lot of meaning to the computer system because computer can only receive instruction and read data in binary number.

It was very useful in our next semester topic because we will be facing a lot of topic about digital and logic :)

by the way, I had fun along this semester , working in the workshop and get more new experiences conducting electronics and electrics components.

thanks to all my lecturers :)

see again in the next coming semester :)

tata~~

x0x0~

electric assessment

in this class, we did electric assessment. I was paired with nur atiqa..

we must did practically on our own, what En.Redzuan had taught us last class.

Fortunately, Atiqa and I managed to do all the task successfully which is connect all thw wire in socket and also connect wire in pendaflour lamp and change the 'chok' from ac to dc..

thank you :)

journey of electricity

this week, we learnt a new topic , ELECTRICITY

we started our class a little bit late, around 2.30 pm. :)

in this session, En.Redzuan brief us about what we gonna do with 3-pin plug and pendaflour light.

first, we learnt how to place 3 different type of wire into 3-pin plug..the figure shown as below..then,we connect the wire to 3-pin socket.

second, we learnt how to place wire in pendaflour light and again, connect it with 3-pin plug .

remember, next Thursday, we will do assessment for this topic:)

2nd chance :)

why 2nd chance ?? :)

En. Redzuan made a new artwork of circuit 1 because he saw our difficulty to build previous circuit 1.

before this, circuit 1 was double-sided circuit but for the new one, it's just single sided circuit :) I found it was so easy to build because of the single sided and furthermore, the traces wider than before :) waahh~~

it was my lucky day because I didn't solder yet my last circuit. so, i just use that component ,didn't need to suck it.. huhu.. then, the process of exposing,developing,etching,cutting and drilling , I did it properly :)

when I did the process of assembling and soldering,I sit quietly at my place and did my work . after 15 minutes I guess, I managed to finish my circuit and feel nervous to test it.. hehe..

and,, Alhamdulillah, my circuit functioned successly :) En. Redzuan told us to submit either one of the circuit next week. He told us to choose the good one ..

thank you :)

xoxo~

INDUSTRIAL VISIT TO CANON :)

it's wonderful moment :)
after we arrived,they gave us simple briefing abot Canon Opto SDN.BHD. we gonna visited two building, camera building and lenses building.

at camera department, there are a lot of huge machine and workers. at there, i had seen how they assemble all the components of digital camera. And the most important thing, I could see how the circuit of various component build and how the machine soldered it. It was more simpler than we soldered manually I guess .. hehe..
this department also practised 5S. I can see the article was paste on the board before we enterd that department :) they make important of punctuality and cleanliness. Before we enterd that department , we must go through several way to clean all the dust at our clothes. It is to make sure that the dust will not enter into camera lenses.


the lenses department also use the same principes of 5S. in the lenses department , we saw the process to make the usual glass become expensive lenses. We had been mentioned that Canon Malaysia produced lenses with high quality than another country .

about the sustainability. They told us that lenses department used a lot of water. So, they are under progress to collect rain water on the roof top, to save the usage of water and to reduce the waterbill. they also had won best company of sustainability and also first place of landscape competiton. I think, other than projected money, Canon also make important of sustainability :)

i hope I will visit many more industrial company to understand how they work and how they apply sustainable and 5S concept :)

snap2 :)

we get this new tools :) happy :)

both of my board after developing,etching,cutting, and drilling process :)

my 1st circuit .. but it doesn't work I think.. huhu

my 2nd circuit .. it's hard because of SMD but easy as it is single-sided board

both of my board after assembling :)

sample of 2nd circuit made by en.redzuan

en.redzuan's :)

BUILDING OF CIRCUIT ON BOARD 2

in this class,, we were doing 2 type of board, 1st circuit was double-sided board and all the component is true holes components. 2nd circuit was single-sided components buth half of components were true holes components and the other half were semiconductor components. It was very challenging because SMD components were too small and hard to soldered it.

EXPOSING TO UV LIGHT

for the 1st circuit ,process of exposing to UV light was a litle bit messy because we must attach the artwork on double-sided board with the same pair. If not,we would face difficulty when we want to drill because the holes not exactly same with both side. 1st time I did it, I made a worst mistake which is I did both side of board with same side of artwork. So ,my board was truely wrong..huhu.. Sorry to En. Redzuan because im wasting the board.. ;) And, 4 the 2nd time, Alhamdulillah,, I succeeded to do it . After exposed to UV for front side, then we must change to the back side to exposed it to UV. After we pull out the white layer of board, don't exposed it too long to the surronding because the green layer is too sensitive to the light. So, you must turn off the light while doing this process.

for the 2nd circuit ,, it was easy and I managed to do this process for 2 board within 5 minutes :) it was easy because it was single-sided but it was a little bit small because of SMD components .

DEVELOPING

Developing process is use sodium solution to tear off the green layer on the board.

for the 1st circuit,, we must hold ourselves the board and mixed it in the sodium regularly. After all the green layer disappear, wash and dry it with towel provided.

for the 2nd circuit,,the process was easy because we just placed the board inside sodium solution ,and remember, the track of circuit must be on top while placing. and then,,mixed it regularly until green layer disappear. after that , the process same with circuit 1.

ETCHING

Etching process is use acid solution to tear off copper layer that not going to used.In this time , we did etching process by using specific machine. But it also take a long time I think.

for the both circuit, just placed the board inside the machine and moved it up-down regularly to tear off copper layers.It will be faster if many bubbles produced.

after finish , wash it with water and dry it with towel provided.

CUTTING

cut both board with the size or shape you want but make sure that you didn't cut the track of circuit.

DRILLING

drilling is the process to make holes of components on the board.

for the 1st circuit, I cannot matched both side of board with same holes because my artwork not the matched pair. But ,luckily, it was not too much different.my drilling was not too proper because size of holes to drill was too small,make the copper around the holes scratched.

for the 2nd circuit, it was easy to drill because size of holes was a little bit big .

ASSEMBLING

assembled all the components of circuit 1 was easy because all of it is true-hole components. It is easy to see and hold :)

for 2nd circuit, it make me worried to take care of those SMD components because it was too small and canot hold it by hand. Hold it by using specific tools .

SOLDERING

I cannot managed to finish soldering both circuit in workshop because time was running out.

for the 1st circuit, En. Redzuan told us that he will make a new artwork with single-sided because he found that we face many difficulty to handle the double-sided board. We must ue back the component given in the next class. So , I didn't soldered the 1st circuit.

for the 2nd circuit, I soldered it carefully because SMD components was too small.

TESTING

i'll test it in the next class.

xoxo~~

p/s= cannot post any picture that i've taken because the line internet was too slow :(