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Top-side ground plane?

 

Curious . . . Why doesn't the ubitx have the top-side copper flooded like the bottom side?
 

Bottom side is sufficient.
With lots of topside copper, more chance of shorts if solder mask isn't perfect.
A topside groundplane would be mostly cut up into long skinny regions that wouldn't do much good.


On Sat, May 19, 2018 at 01:44 pm, Mike wrote:
Curious . . . Why doesn't the ubitx have the top-side copper flooded like the bottom side?
 

It may be because it takes more chemicals and more time to do a complete
removal of excess copper.? Outline or isolation is faster and less expensive.?
At least that works for me when doing CNC Milling of a PCB.? It would take
forever to machine excess copper off with the tiny bits we use for CNC mills.

Arv? K7HKL
_._


On Sat, May 19, 2018 at 2:59 PM, Jerry Gaffke via Groups.Io <jgaffke@...> wrote:
Bottom side is sufficient.
With lots of topside copper, more chance of shorts if solder mask isn't perfect.
A topside groundplane would be mostly cut up into long skinny regions that wouldn't do much good.


On Sat, May 19, 2018 at 01:44 pm, Mike wrote:
Curious . . . Why doesn't the ubitx have the top-side copper flooded like the bottom side?
 

Mostly because its not needed and adds complexity for little value.? If it were then a 3 or four
layer board might be justified but modding such a board is never easy.

Try fixing a board error (short circuit) in a 10 layer board, just drill here... exactly!? Oops!? ;)

Allison

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