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The Saltwater etch process

Step 26Mount the integrated circuit

Mount the integrated circuit
The ic is mounted last of all, in order to minimise chances of damage to it.

It is first placed in proper position and one corner pin heated with the soldering iron. Since there is a small amount of solder on the board, this melts and holds the ic in position.

Then the diagonally opposite pin is soldered, after making any slight adjustments in position as needed.

With the two corners soldered, the ic will be held firmly in place and so the rest of the leads are soldered.


This completes assembly of the board, and it may be tested by loading a "LED Blink" program or something.

I have soldered a Microchip PIC16F54 on this board, but this board will work with any eighteen pin PIC as well.

Some of the more advanced chips permit using the MCLR pin as an input so this might also have to be brought out to the edge.
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Author:neelandan
Employed as an Engineer in Electronics. Interested in building small circuits around tiny chips (the electronic kind).