Op Amp Proto Board (SOIC-8)

RE: Op Amp Proto Board (SOIC-8)

DAB — Thu, 26 Jan 2023 19:15:26 GMT

Nice build.

RE: Op Amp Proto Board (SOIC-8)

wolfgangfriedrich — Thu, 26 Jan 2023 01:09:03 GMT

From the top the board looks almost home etched (minus the silkscreen) or from good old Alberta Printed Circuits.

But what layer are the big pale rectangles? Oh, maybe bottom layer silkscreen...

RE: Op Amp Proto Board (SOIC-8)

shabaz — Wed, 25 Jan 2023 18:51:45 GMT

"the PCB fab I used can, apparently, print silk directly on HASL"

That used to be quite common : ) unfortunately it's one of the minor things that the low-cost China prototype PCB services don't seem to support.

Sometimes it is handy (especially for prototying boards as you're doing, or for RF boards, or for where you've got lots of heatsinking going on, and you might want the occasional bit of silkscreen when there's no mask layer).