MOUNTING OF SMD COMPONENTS IN RF CIRCUITS (MICs)

[abhityagi85]

Hi everybody, This is abhinav, working on rf frontend for sdr
i have a querry regarding mounting of smd components on substrate. how should i do mounting??????? is it different from normal mounting of DIP packages??? if someone can send ur feedback and links related to mounting at abhityagi85@gmail.com i shall be greatly thankful.

 

[melc]

**broken link removed**

Instead of the toaster I'm using hot air. I've soldered SMD and TQFP running up to 5GHz. Will not work from the first try...

 

[ckshivaram]

Soldering SMD components are very difficult and one must need a very good hands on experience experience. Mounting and removing of the component is very difficult. It took 4 years for me to learn the actual soldering of SMD components. For SMD soldering you should always use a temperature control soldering iron and the temperature should not be more than 200 - 250 deg. Only thing never heat the for more amount of time as they will break. just take lead at the tip of the iron. add flux in a very very little quantity, just touch the soldering pad where the component is placed for just 2 or 3 sec. While doing this hold the component with proper tools so that they do not shake while soldering.