Naked Science Forum

General Science => General Science => Topic started by: NTYNUT on 31/08/2018 11:47:29

Title: What is solder masking?
Post by: NTYNUT on 31/08/2018 11:47:29

Hello,
How to build mask solder in which the circuit is solder 1000's of component in few seconds 
like led,chip,resistance,diode etc

Title: Re: What is solder masking?
Post by: evan_au on 31/08/2018 12:52:00

Soldering of circuit boards is typically done by reflow soldering:
https://en.wikipedia.org/wiki/Reflow_soldering

The many tiny components on today's circuit boards are precisely placed on the circuit-board pads by robots.

The solder mask is a layer of epoxy which prevents the solder from joining together unwanted component pins and tracks.
It is designed as part of the printed circuit board layout.
See: https://en.wikipedia.org/wiki/Solder_mask

Once I specified on a circuit board layout where I did not want a solder mask on particular terminals, as I wanted any static electrical discharges to spark over at the circuit board terminals, rather than have any surges destroy components further into the circuit board. I recall that it was difficult to explain this unusual request to the circuit board layout designer.

Title: Re: What is solder masking?
Post by: NTYNUT on 31/08/2018 13:01:02

Hello
what is this machine do

Title: Re: What is solder masking?
Post by: Bored chemist on 31/08/2018 13:05:19

Quote from: Bored chemist on 30/08/2018 15:48:28

Why don't you google this and find out?