Posted by Jhiegzh on Wednesday, June 2, 2010 in
PCB (Printed Circuit Board) is a conducive pattern applied on one both sides of a substrate where electronic components are soldered to complete a circuit. We will be preparing and making our Printed Circuit Board using Copper Clad Board as shown aboveActually it is done when we already have our circuit design on the bondpaper.

Steps for CCB PCB Preparation/Making                
1.) Cut copper clad board to specified size (e.g. 5"x 5"). The size is dependent on the number and sizes of electronic components present in a circuit design.
2.) Straighten or smoothen the edges by filing or by sandpaper. This is to avoid sharp or pointed corners and edges which would be the cause of wounds.
3.) If you have seen unnecessary marks on the copperside  (e.g. pen marks, pencil marks, dirt), clean using an eraserDO NOT USE sandpaper in erasing the unnecessary marks.
4.) Cover copperside with masking tape. It would be necessary if the masking tape  has greater width. Be sure the tape is firmly in contact with the copper. This to avoid for the "wanted" copper to be removed by the Ferric chloride when etched.



5.) Photocopy your PCB Layout. After you made your PCB layout on a bondpaper, you need to have it photocopied to have an extra just in case you got mistake in cutting your PCB design on the board.
6.) Cut and glue the photocopied PCB Layout on top of masking tape
7.) Wait for few minutes until it dries.
8.) Punch the holes (circular in shapes) using prick punch and a hammer. Avoid using too much force as this well break your board and will ruin your design.
9.) Cut unwanted parts or layout (colored white on the image above) using a cutter. Make sure your cutter is sharp.
10.) Peel-off the cut-out unwanted layout exposing the copper. Do not do this as if you are in a hurry because there will possibilities you haven't cut your layout properly that will result for the exposure of wanted copper.
11.) Etch your Copper Clad Board using the Ferric Chloride solution.
12.) When you are done etching your design, rinse the board with flowing water.
13.) Remove the masking tape.
14.) Drill the holes using a mini drill

15.) Solder your electronic components.

Soldering is a broad topic. I will impart my ideas about soldering in my next post. Actually PCB Preparation/Making using Presensitized board is quite similar to Copper Clad Board but neglecting some of its steps, because in this process, you will not be using cutter and masking tape anymore. Aside from that your circuit design will be in a tracing paper and you will be using the sunlight or the Ultraviolet rays for transferring the circuit design to your board. I will talk more on these in a post next time. 
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