06-02-2017, 22:01
Have anybody ever hear about dendrites? Google about it, it will worth.
![[Image: foresite5.jpg]](http://circuitsassembly.com/ca/images/stories/ArticleImages/1412/foresite5.jpg)
![[Image: foresite13.jpg]](http://circuitsassembly.com/ca/images/stories/ArticleImages/1412/foresite13.jpg)
It's a "disease" that attacks PCB,s mostly caused by the use of some types of flux. The most the PCB's are exposed to high levels of moisture in the air, the quicker the problem arrives.
Almost all RX and TX modules I saw, have signs of use of inorganic flux. They should always be cleaned with distillate water, not alcohol or acetone which only dilutes the flux and spread it in a tiny film along all the board. When you use alcohol or similar flux dissolvers, always wash the assembled boards with distillate water, and fully dry them before use.
It's a "disease" that attacks PCB,s mostly caused by the use of some types of flux. The most the PCB's are exposed to high levels of moisture in the air, the quicker the problem arrives.
Almost all RX and TX modules I saw, have signs of use of inorganic flux. They should always be cleaned with distillate water, not alcohol or acetone which only dilutes the flux and spread it in a tiny film along all the board. When you use alcohol or similar flux dissolvers, always wash the assembled boards with distillate water, and fully dry them before use.