My_Ref Fremen Edition - need help on PCB evaluation

[ClaveFremen]

Originally Posted by DarthBubba

And that's the My_Ref_FE - PCB from your Google Docs library?

Yes

[linuxguru]

Originally Posted by DarthBubba

LinuxGuru, what are the dimensions on your v1.4 PCBoard, please?

Both V1.3 and V1.4 are nearly identical at 91 mm x 104 mm +/- 1 mm. The slight variations are due to different vendors and manual cutting tolerances.

[DarthBubba]

Originally Posted by linuxguru

Both V1.3 and V1.4 are nearly identical at 91 mm x 104 mm +/- 1 mm. The slight variations are due to different vendors and manual cutting tolerances.

Is there a picture or PCB layout available to see? If not, on which dimension is the LM3886? The 91mm or the 104mm?

Thanks.

[bAD kLOPFER]

Originally Posted by DarthBubba

Is there a picture or PCB layout available to see? If not, on which dimension is the LM3886? The 91mm or the 104mm?

Thanks.

It is on the 91 mm side. You can see a picture here.

[bcmbob]

From one of Siva's earlier posts:
revc13a4_12x9.jpg

[ClaveFremen]

Finally PCBs arrived, I've attached some pictures.

Since this is my first PCBs order I'm not sure if I should be satisfied by the manifacturing quality...

All PCBs have been manually 'fixed' for etching problems, is it normal?

This Saturday I'll ship boards and parts (if requested) after a rapid electric check.

BTW I've just opened a new thread for the beta build.

[soongsc]

If they are only fixing the blue mask, then I would not be worried. If they are fixing the traces and pads, it would depend upon price. But did they gold plate the whole board or just the pads?

[ClaveFremen]

Originally Posted by soongsc

If they are only fixing the blue mask, then I would not be worried. If they are fixing the traces and pads, it would depend upon price. But did they gold plate the whole board or just the pads?

Quite all fixes are on pads/traces surrounded by the ground-plane.

All the copper surface is gold plated.

Price is the lowest I've found, BTW for the GB I'll use a different manifacturer, probably a local one.

[soongsc]

I am wondering about gold plating these days. Some time ago I sent in some connectors for examination, results showed high content of nickel.

[ClaveFremen]

Originally Posted by soongsc

I am wondering about gold plating these days. Some time ago I sent in some connectors for examination, results showed high content of nickel.

I suppose is pretty normal... all PCBs' gold finish usually is Electro-less Nickel Immersion Gold (ENIG).