Recent content by glococo

Hi, I was updating optics in the last days and here are some new achievements. A BGA of AllWinner A80, 0,65mm dot pitch. BTW, this is only a test, since the only materia I have is 0,48 thick. Too thick to use solder paste. Should be 0.1mm approximately.

I'm in continuous progress, each day I improve the stencil even better. These photos are more than a week old and was my first try, Take a look how easy to apply is with transparent stencil vs metal sheets stencil. I found 2 interesting things: 1) Transparent is better to align. 2) Flexible is...

I was making stencils with CO2 the last week but I keep looking how to make an even small spot on paper and plastic. Actually I get 0.2mm, but depends too much on the focus/table height, the air flow to cool down the plastics sheets, the source power, speed. I think 0.2 can be improved. Does...