Hilti
Newbie
Hello Everyone,
I am really new at PCB design and edaboard.com forum. Maybe my questions would be silly if so, sorry in advance
The PCB at the top is my design for BLDC motor control. The bottom one is a commercial product. Well, as you can see there are some differences I want to ask about them.
1- The tracks and polygons of commercial pcb are brown. My pcb's tracks are green. First, I though they exposed copper and erase the solder mask but the pads of the components are silver. I guess this is a some kind of plating but I don't know. (Also, mosfets' thermal pads are brown. Mine is silver)
2- Most of the vias combines with white pads. Also, all of the vias are non- solder mask. What is the purpose of these?
3- I made most of the connections high current lines with polygons. Also, I poured ground all of the other ares but as far as I see, they did not do that (Maybe inner layers)
I am open minded for all of the corrections, advise etc, for improve myself
Thanks,
I am really new at PCB design and edaboard.com forum. Maybe my questions would be silly if so, sorry in advance
The PCB at the top is my design for BLDC motor control. The bottom one is a commercial product. Well, as you can see there are some differences I want to ask about them.
1- The tracks and polygons of commercial pcb are brown. My pcb's tracks are green. First, I though they exposed copper and erase the solder mask but the pads of the components are silver. I guess this is a some kind of plating but I don't know. (Also, mosfets' thermal pads are brown. Mine is silver)
2- Most of the vias combines with white pads. Also, all of the vias are non- solder mask. What is the purpose of these?
3- I made most of the connections high current lines with polygons. Also, I poured ground all of the other ares but as far as I see, they did not do that (Maybe inner layers)
I am open minded for all of the corrections, advise etc, for improve myself
Thanks,