Teach you how to weld CAD design board bottom (for beginners) graphic tutorial

One 、 Chip capacitors

1、 First of all, let's take a sheet of all the welding points ：

This is the back （ It's for practice ）

2、 Of course, this is a necessary tool for welding patches ：

 3、 This is ready for welding DD( You have to watch it , If you are not careful, you will disappear , Some students lost many times ）：

  Recommend a practical tool for clamping tweezers ：

Clip a pose .

Look at this soldering paste

This is the electric soldering iron of the school （ Taking it on the road is a bit like fighting ~~~） It is suggested to take a knife head .

First heat the solder joint with a soldering iron ：

 

  To weld these two large chips, you need a small item （ Solder paste ） This thing can help you load quickly ！！！

It's probably used after power on ：

Finally, do some finishing work .（ Use the suction drum to lift the excess welding points ！） Or find an alcohol to finish

Of course, you can also learn from this excellent blogger ！

His ending is like this （ I feel average ）

Wash once , But I use the cleaning of welding paste

Finished product display ：

  Remember to test after welding , In case of faulty welding 、 Open circuit caused by missing welding 、 Short circuit condition ！（ I'll take it to the lab tomorrow to test and see how it works ）