Contents
How do you remove a solder mask from a trace?
How to Remove a PCB Solder Mask
- Scrape the solder mask layer away from the PCB carefully with the razor blade.
- Sand the PCB solder mask away with the mechanical eraser.
- Inspect the PCB for accidental damage to the board itself or any electrical component traces.
How do you mask a via in Eagle?
To tent your vias, open the DRC rules on your current design (Tools->DRC menu). Then increase the limit value to larger than the vias you are using. For instance, if the vias on your board are the default 0.023mil, then change the limit to 25mil and all drill hits under 25mil (0.025) will be covered in soldermask.
How do you dissolve flux solder?
Removing flux from a PCB is a simple task.
- Dip a clean toothbrush in isopropyl alcohol or acetone. Flick away excess by flipping your wrist two or three times.
- Use the toothbrush to gently brush the solder flux on the PCB, applying the alcohol or acetone.
- Wipe down the cleaned area with a clean rag.
How to cover vias with solder mask in Eagle?
EAGLE displays the solder mask in a negative way, in other words, if you enable to TStop layer or BStop layer you will notice your pads acquire this shaded hatched lines. This means those pads or vias are exposed. If you wish to tent (cover your vias with solder mask) then change the Limit Value for your DRC/Mask parameters.
How to remove the solder mask from a PCB?
2 Sand the PCB solder mask away with the mechanical eraser. This process requires a high level of skill to avoid damage to other areas of the PCB. 3 Inspect the PCB for accidental damage to the board itself or any electrical component traces.
When to use cream or solder paste in Eagle?
Every day I learn something new in Eagle. When you draw a surface mount pad in a custom Eagle library package, it has a solder paste stencil aperture (aka “cream” layer) and a solder mask aperture (aka “stop” layer) automatically generated with it.
Can a solder mask be used under a Tstop?
In particular, the direction to “not place copper traces or solder mask underneath the module” in the Solder Mask section seems like a prescription that the there should be a no tStop in that hatched area, and that that same area should have a vRestrict and a tRestrict cover.