In the course of their work, radio electronics very often create various types of circuits for various devices. For novice radio amateurs, the creation of such schemes seems to be an incredibly time-consuming and impracticable process, however, following the further instructions, any beginner can change this opinion.
Necessary
- - laser printer;
- - iron;
- - glossy paper;
- - PCB board;
- - ferric chloride;
- - electronic components.
Instructions
Step 1
At the very beginning of the work, find on the Internet or draw a drawing of the printed circuit board yourself. After that, use a laser printer and print your drawing on glossy paper (preferably from Lomond, as it has established itself among radio amateurs). After that, prepare a textolite board for drawing a pattern on it: clean it with fine sandpaper and degrease with acetone.
Step 2
After stripping, attach the printed drawing to the PCB with the pattern down and fix it. After that, iron the paper with a preheated iron to the maximum, not allowing it to move and change its original position. Let the board cool for a few minutes, then place it in a stream of water, gently rolling the paper so that only the textolite and toner remain. Leave the board to dry.
Step 3
While the board is drying, prepare a solution of ferric chloride: dilute the powder of this substance in water. The next step is to place your dried board in the solution, patterned down, so that it floats to the surface (you can attach a piece of foam to the back of it with tape). This process is called pickling and can take anywhere from 10 minutes to 1 hour.
Step 4
After the etching process is complete, dry the board and thoroughly clean it of toner. Drill holes according to your schematic drawing, clean the board again. After that, tin the board - apply a thin layer of tin to the tracks of your circuit using a soldering iron.
Step 5
In the final step, place the necessary electronic components (capacitors, resistors, microcircuits, etc.) on your board and carefully solder them into the desired holes made earlier using a small amount of tin. Also, do not overexpose the soldering iron to the board for too long to avoid destroying both the electronic components and the tracks on the board itself.
