[Libre-soc-dev] Questions about the logos.
Luke Kenneth Casson Leighton
lkcl at lkcl.net
Tue Jun 15 12:23:52 BST 2021
crowd-funded eco-conscious hardware: https://www.crowdsupply.com/eoma68
On Tue, Jun 15, 2021 at 12:01 PM Jean-Paul Chaput <Jean-Paul.Chaput at lip6.fr>
> On Tue, 2021-06-15 at 11:05 +0100, Luke Kenneth Casson Leighton wrote:
> > ---
> > crowd-funded eco-conscious hardware: https://www.crowdsupply.com/eoma68
> > On Tue, Jun 15, 2021 at 10:50 AM Jean-Paul Chaput <
> Jean-Paul.Chaput at lip6.fr>
> > wrote:
> > >
> > > Hello Staf,
> > >
> > > As said in the title, I have some questions about including
> > > the logo:
> > >
> > > 1. The GDS do not contains the logo drawn in the top metal layer,
> > > but also all the other metals. I assume it is for density reasons.
> > >
> > > 2. In additions to those layers, there is a layer Id 150, with
> > > DATATYPE 1 to 6. What are they for? I
> > blockage, i presume? which layer number is that supposed to be?
> Could not tell you which number it is (NDA :-( ), but I have it
> and it is not 150...
oh fer god's sake :) ok. well, best option, you have some sort
of "remap" file (text file) and perhaps we put the same numbers
as FreePDK45 blockage layers.
> We can assume that, as they need to see the bounding area of the
> pads, a size close to it is big enough. So, one square logo of
> 50nm side would perfectly fit.
ok. i will redo them all at 50um. they can then go into the area outside
of the IORing, and will look like IO pads.
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