Surface finishes in PCB industry

Do you know the Surface Finishes definition?
The surface finishes definition look like very high technological.
Most people don't know the real surface finishes.
HTD circuits will shared you all the surface finishes technological.

Surface finish, also known as surface texture or surface topography.
If you have a mould or die experience.
You also know see surface finishes definition.
Of course there were many other areas also use surface finishes definition.

HTD circuits as leading PCB manufacturer from China.
We have a duty to introduce the surface finishes definition in PCB area.

The surface finish is the nature of a surface.
Here the nature is not means the surface original.
It's mean that the surface performance can keep a natural state.

And this nature surface is a help assembly worker assembling.
If you learn about the assembly work process.
You may know the surface of the PCB is the main factor effect assembly components.
So the nature surface finish performance is very important.
As defined by the 3 characteristics of lay, surface roughness, and waviness.

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