All Questions
Tagged with pcb-fabrication solder-mask
18
questions
0
votes
0
answers
32
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How to cover thermal vias in design spark pcb
I am trying to cover the vias on my PCB using the solder mask however when I upload the PCB to a manufacturer's website the vias are not covered. I am using DesignSpark PCB software
There is a post in ...
- 1
0
votes
1
answer
35
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Is it okay for two pads F.MASK to overlap each other in Kicad
I made a new footprint for XL-0807RGBC-WS2812B based on this datasheet.
When I place this footprint in PCB editor the F.Mask for the pads on this component overlaps each other.
Is this okay?
I assume ...
- 832
2
votes
2
answers
400
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When should I specify that top and bottom copper component pads are to be pre-tinned?
My circuit boards come from the fab house with solder pads in a pre-tinned state. Maybe I did not think to specify this - or not! Prior to reflowing should I stencil more solder or should I just ...
2
votes
1
answer
75
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PCB soldermask removed in spots?
I was watching a video on Youtube, where I came across this bottom side of a PCB:
source: EEVblog 1481 - Dodgy Dangerous Heater REPAIR
It is seen that the soldermask is removed so they can tin the ...
- 1,203
1
vote
0
answers
87
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UV solder mask and dry film solder mask
I am interested in masking my PCBs and I have a few questions about the process:
Using a dry film solder mask seems more straight-forward, but it is more expensive.
If I use UV solder mask in a ...
- 391
0
votes
2
answers
162
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Use of tin plating
I have been researching about PCB development, and I came across the tin plating process. Consider the following scenario: I have created a PCB, covered it with solder mask, and I am now ready to ...
- 391
4
votes
1
answer
2k
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Can Silkscreen Go Directly Onto Copper PCB Layer? (No SolderMask)
Hi I am wondering if a PCB silkscreen layer can be printed directly onto a copper layer without a solder mask. I don't see this often but I have a design for which this would be useful. Has anyone ...
- 151
3
votes
2
answers
770
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Inconsistent solder mask on vias
When looking at PCBs in consumer products or PCBs I have ordered from manufacturers myself, I notice that, while many of the vias are covered in soldermask, it seems like a few random vias are missing ...
- 1,439
0
votes
2
answers
1k
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How to make soldermask on PCBs for soldering?
I know how to do a PCB until this step (below image) ugly and not safe by short-circuits.
I found this PCB Plating Tape on Aliexpress (Link to the aliexpress product. I'm not the seller) which I ...
- 103
0
votes
1
answer
565
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Can spray paint or a marker block UV for solder mask/resist? [duplicate]
I am planning to make a PCB and putting solder mask on it but I don't have my own laser printer to print the transparency for the mask. I do, however, live near a printing shop with a laser printer ...
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-1
votes
1
answer
671
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solder mask clearance [closed]
The current soldermask clearance in GERBER is 3 mils.
Will PCB house reduce it base on their capabilities?
I'm a fresh DFM engineer in an EMS company. Soldermask analysis is a part of DFM, changes of ...
- 53
0
votes
2
answers
2k
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Missing top solder mask complaint when trying to order PCB? (PCBWay)
I'm really new to PCB layout and after creating my PCB layout and ordering it from PCB Way my audit was failed for reason "no top solder mask layer." What does that mean and how would I add that? If ...
- 103
1
vote
0
answers
695
views
Problem isolating vias. Solder mask offset
I detected a shortcircuit between two vias in one of our PCBs. The shortcircuit was caused because an offset on the solder mask leaves part of the via's ring "half opened". When the PCB was assembled, ...
- 35
5
votes
2
answers
6k
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Eagle - non solder mask defined (NSMD) pads
I am designing a PCB layout in Eagle and in the datasheet of my modul it is said that "Non solder mask defined (NSMD) type is recommended for the solder pads on the PCB". Does it mean that there will ...
- 51
8
votes
2
answers
13k
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Gerber - is my understanding of solder mask layer (GTS / GBS) correct?
I've just had a PCB manufactured for me, but it seems like the solder mask is only applied to where the copper is.
I'm trying to figure out if it's my fault or not.
According to my understanding ...
- 1,189