Need eagle library part change

Projects General Guidance
1

Can I get a little help with making the '328 TQFP a little different?
I'd like to make the solder mask overlap the edge of the pads a little more to make it easier to hand solder & help cut down on solder bridges.
Looks like the leads are 0.45mm, the library has 0.56mm wide pads, and 0.22 space between pads.

Looks like Sparkfun has a TQFP32-5mm package that might do the trick.
I can't figure out how to connect the package to the atmega168 part so I can select it on the schematic page.
No matter what I try, it show the TQFP32-08 and the MLF package, and complains the TQFD32-5mm " is already defined!!" and won't add it to the list of packages.

Help please?

Thanks

2

i'm bored, see attached

i think your issue was the variant name being blank for the other TQFP variant

atmega328p.lbr (8.01 KB)

3

Thanks - how did you add it?

Hmm, I see now the 5mm and -08 refer to the body size.
Putting it on the board, I can see that isn't what I'm after.
If I modify the TQFP32-08 package to make the pads a little narrower, how do I get it added to the variant list so I can swap the package type?

I have a tube of 20 parts - I should check to see which they are!

TQFP_5mm_TQFP-08.jpg
TQFP_5mm_TQFP-08.jpg960×720 93.1 KB

4

Whew, I have the larger 328P-AU, not the MU. That little one would be a bear to solder.

5

It sounds like you want to clone a package, and modify the clone a bit, right? I usually do this:

  1. Rename the package
  2. Import the package again but using the original name
  3. Do your modifications

You'll have to do the pin assignments again though, but that's not hard.

6

Ok, I duplicated the package and saved it, created a new library, which is okay I guess. Thinned the pads from .022 to just .02, will see if that helps!