Snow Flake Component Side

Today I show you a little bit longer video about the assembly of the component side of the snow flake panel.

Compared with the very small 0402 LEDs (1mm x 0.5mm) on the front side, the component side contains just regular 0805 resistors and capacitors.

The first part of the video shows how I apply the solder paste using a metal stencil. I use a system called “eC-stencil-fix” from Eurocircuits. This is basically a set of plates with metal knobs to perfectly align the board with the stencil. With a tick in a checkbox, they produce panels which perfectly work using this stencil fix system, which is really convenient.

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Perfect Snow Flake Panels from Eurocircuits

Eurocircuits delivered some perfect panels for the snow flake board. Each panel has five snow flake boards on it.

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This was an impressive good job from from Eurocircuits. There are a quite number of challenges to produce panels in this outstanding quality:

  • The width of the small decorative lines on the front is just 0.15mm. It is hard to get the HAL evenly over the whole surface with lines in all directions like this.
  • White solder mask would show every imperfection. You really can not hide a thing with this colour, it benefits greatly from a clean-room.
  • Milling this board outline is not simple either. You need experience, where to place the bridges to create a stable panel.

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Most vias are tented, which is very nice. These are 0.25mm diameter holes, so it is at the upper limit where tenting works.

I am very happy with the result! The people at Eurociruits have clearly demonstrated their skills and commitment to quality.

Now it will be a real challenge to assemble the board without leaving any marks on the white surface. 🙂