"Are the links only to "via"?" Sorry but your question is unclear. Are you asking if: 1\. the copper tracks one the top \(red\) and bottom \(blue\) layers connect to the vais **and** the pads on the AMS1117 footprint or; 2\. only to the vias and **not** the pads on the AMS1117 footprint It is hard to understand your screenshot because you have not shown how you have configured your layers and how they are being displayed. It looks as though you have chosen to display the solder mask layer as well as the top and bottom layers and your screenshot suggests that you have added rectangles to the soldermask layer over the pads for the AMS1117 footprint. The default solder mask regions over all the other through hole pads is not shown in this display because the solder mask layer only shows the solder mask that you have added.

Hi, I want to know if we can make a connection under the solder mask without problem or if there is a connection? And if so, are the wires connected to the solder mask with the right vias?

@Myrmecologue, I think you misunderstand what the Solder Mask is. Adding Solder Mask in EasyEDA is not a conductive (copper) feature, it is a graphical tool that selectively removes solder mask over specific areas of the PCB to expose the underlying copper for plating (HASL, ENIG etc.) or even just to expose the underlying fibreglass PCB material (FR4). Some background about Solder Mask: _"Solder mask is an epoxy coating applied to the bare printed circuit boards to prevent accidental solder bridging and protect them from the_ _environment. Solder mask is usually green but many other colors are available, such as red, black, white, yellow and blue._ _After another stage of cleaning, panels are loaded into the solder mask coating machine. This completely covers both sides of panel with an_ _solder mask ink. The panels are then put through a drier which hardens the ink just enough to allow it to be printed. Next the “tack-dried”_ _coated panels are imaged under UV light using a set of photomasks which, before exposure to UV, are checked to ensure that they are_ _precisely aligned (to better than 50um) with the copper tracks and pads on the panel. The photomasks are clear where the solder mask is to_ _be further hardened and opaque where the solder mask is to be washed away in the “development” stage to expose the pads on the panel._ _The development stage strips off the unhardened and unwanted resist. To ensure that the exposed copper is ideally solderable, the panels are_ _then inspected to ensure that there is no residual ink left on the pads or through the holes. Even slight traces would compromise the_ _solderability of the finished PCB. Lastly, the resist will be further hardened or “cured” to provide a permanent, hardwearing coating."_ Please also see the section on "Apply Soldermask" in: [https://www.eurocircuits.com/making-a-pcb-pcb-manufacture-step-by-step/](https://www.eurocircuits.com/making-a-pcb-pcb-manufacture-step-by-step/)