SparkFun Forums

[Tomasu]

Sparkfun has motivated me into sparking (pun intended) up an old childhood fantasy. Making electronic gadgets

Now, I'm pretty new to it all, especially eagle, but I think I'm doin alright so far, but for kicks I submitted my current test design to the auto drc(?) checker here at sparkfun and well, things didn't go so well. I ran the sparkfun provided scripts and whatnot to make sure those things were spiffy, and I made sure the clearances between "wires" were 8mil or greater.

Heres the error (minus a ton of php code echo'ed to the screen)

Checked Aperture 10 (0.0080): Passed
Checked Aperture 11 (0.0024): Failed
Error - Aperture too thin

I assume it was something I did, so I'll post the files and a screenshot of the circuit. Heck, I've probably done it all wrong I've only been playing with eagle for a week maybe (and it took till just now to figure out how the library system worked, with creating new symbols, packages, etc)

Image
Schematics..

Basically what I'm attempting is to design a small adapter so a QFN chip will fit in a standard DIL .600" package.

So if anyone could help this stuck beginner, that'd be great

[pittuck]

ok,

the problem is that a load of the lines / tracks you use are too thin, to keep the costs down there is a min track width of 8mil

Code: Select all

%AMOC8*
5,1,8,0,0,1.08239X$1,22.5*
%
%ADD10C,0.0024*%
%ADD11O,0.1200X0.0600*%
%ADD12C,0.0080*%
%ADD13C,0.0050*%
%ADD14C,0.0396*%
D10*
X004963Y008971D02*
X005167Y009175D01*
X004963Y008971D02*
X004897Y009037D01*

Now, this shows that D10 is too thin and is used.

Problem is, eagle is using D10 to paint the pads on your SMD chip. So there are no lines 'too thin' but there is a chance this will cause errors in production.

I have no idea how to fix this, accept to turn the chip 45 degrees.... Anyone else?

[Tomasu]

Well, you are right, turning the chip back 45 degrees fixes that problem, but it makes routing a pain in the rear.

Thanks for the input. And now that I think about it, I want to add a couple tings to that board (chip takes two different voltages, want to add a regulator so I only have to provide one input voltage) and that'll only make it more interesting.

If someone has some examples of this sort I'd really appreciate seeing them, just so I can figure out the best way to route it all.