question regarding PCB process layers in real life

Thread Starter

yef smith

Joined Aug 2, 2020
1,452
Hello ,I have this schematics of a footprint, we have all these layers which represented by a color.
yellow- is top overlay called silk screen
red-copper top layer pad where we solder the component
purple-top paste layer,the place where the solder will be placed on the pads
no color- top solder layer
I dont know how to actually visualize in real life thos layers.
silk screen with top solder etc..
Is there some manual or videowhere i can see the process of layers in real life?
Thanks.
1687963446013.png
 

MrChips

Joined Oct 2, 2009
34,698
In real life you will have, going upwards,
1) fibreglass layer
2) copper layer
3) solder mask, commonly green, but can be any colour of your choosing. OSH Park likes to use purple.
4) solder paste
5) silk screen, usually white.

Hope this helps.
 

Thread Starter

yef smith

Joined Aug 2, 2020
1,452
Hello Mr chips, regarding the layers in altium what comes on top what?
what color comes on top what color?
Thanks.

red-copper top layer pad where we solder the component
purple-top paste layer,the place where the solder will be placed on the pads
no color- top solder layer
 

MrChips

Joined Oct 2, 2009
34,698
The colors in the CAD program are whatever you choose.
The order of each layer will depend on the CAD program. I don’t know if there is a convention.
You can disable any layer for viewing purposes.
 

BobTPH

Joined Jun 5, 2013
11,484
Draw a grid of overlapping lines, both horizontal and vertical, for each layer. Then the intersections will show you which of each pair is on top.

In my CAD program the colors are combined, so, for example, the top copper is red and the bottom copper is green so if both are there, it is colored yellow.
 

StefanZe

Joined Nov 6, 2019
212
If you have a PCB file open in Altium Designer you can click on Design->Layer Stack Manager.. and there it will show you the layer stack up. The paste layer will not be shown because it not part of the PCB (it is used to make the stencil for the paste)
 

WBahn

Joined Mar 31, 2012
32,754
I dont know how to actually visualize in real life thos layers.
silk screen with top solder etc..
Is there some manual or videowhere i can see the process of layers in real life?
Have you even tried Googling something like "printed circuit board" and looking through some of the the top results?

I found cross sections showing the ordering of layers on several of the first half dozen sites that came up.

Go do some reading and come back and ask specific questions that you are still confused about.
 

Thread Starter

yef smith

Joined Aug 2, 2020
1,452
Hello, i would like to match the visual 3D photo shown below and the 2D with the stackup
from 3d there is a resistor on pads.
i cannot see from the stackupin the end the 3D form.
is there some intuition i could use?
Thanks.
1688126972107.png
1688127228079.png
1688127389150.png
 

nsaspook

Joined Aug 27, 2009
16,272

BobTPH

Joined Jun 5, 2013
11,484
Hello, i would like to match the visual 3D photo shown below and the 2D with the stackup
from 3d there is a resistor on pads.
i cannot see from the stackupin the end the 3D form.
is there some intuition i could use?
Thanks.
Why, I have designed a few PCBs and have never even thought about seeing it in 3D? I see no value in doing that. What problem are you hoping to solve?
 
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