First GDS

Question

First GDS <https github com PaulSchulz skywater shuttle>

Anish · Answer

only a GDS no src

Riking28 · Answer

I think you re supposed to publish verilog through gds So that it can be re executed with updated open lane

Paul Schulz · Answer

GDS created directly from Magic Its a logo release early release often Now I need to learn about openlane

tnt · Answer

It doesn t pass DRC though stuck out tongue

Paul Schulz · Answer

Ok how do I make that work Too small

Paul Schulz · Answer

Paul Schulz · Answer

renamed

tnt · Answer

Yeah too small features min width height minimum area rules not respected zones need to have a min surface zones need to either be connected with some width or be separated by some width AFAIK the corner touching like you have is not good

Paul Schulz · Answer

slightly smiling face

Paul Schulz · Answer

Where do I find that out for sky130

tnt · Answer

Paul Schulz · Answer

stuck out tongue thanks

tnt · Answer

Magic checks and reports for you as well

Paul Schulz · Answer

I m using metal 1 I think Feature size 0 14 space size 0 14

tnt · Answer

Yes

tnt · Answer

And `0 083 um^2` minimum area

tnt · Answer

Those are the main ones

Paul Schulz · Answer

Time to pick a different font do you think that is why the IBM logo is the way it is

tnt · Answer

I hope not

Paul Schulz · Answer

Sorry for the stupid questions feel free to tell me to RTFM if that s what it needs

Paul Schulz · Answer

What happens if metal2 metal3 metal4 and metal5 arn t present What s the material outside of them Are the pads for external connections made of metal 5

tnt · Answer

The pads to the outside are on metal 5 yes

tnt · Answer

In each layer anything not metal is silicone oxide FOX = Field Oxide

tnt · Answer

err silicon not silicone

Paul Schulz · Answer

slightly smiling face

tnt · Answer

also to the outside is only on the bare chip In this case since it s a WLCSP you ll have a so called Redistribution Layer basically a flex pcb stuck to the die that will bring the signal from metal5 on the die to the location of the BGA balls

Paul Schulz · Answer

Thanks So I should be using metal 5

tnt · Answer

Doesn t really matter if there is nothign above it you d see meta1 just fine

Paul Schulz · Answer

Are images photographs of the die also produced as part of the process

tnt · Answer

I have no clue

Austin Rovinski · Answer

Anything that isn t on the top layer isn t really visible And there is never a blank metal layer dummy metal fill aka BEOL fill will fill up the area with a pattern to satisfy min density max density rules AFAIK if adding a logo is an option it is usually done in the RDL layer to actually be visible

Stefan Holst · Answer

Thank you for this nice test case for my After some improvements your tiny GDS file Polygon holes still need some work though

Paul Schulz · Answer

I have make the font larger and will upload it shortly I need to get the design rule checking to work in my version of magic Ubuntu

Paul Schulz · Answer

< Stefan Holst> How should I install the dependancies Ubuntuu 20 04 pip3

Paul Schulz · Answer

Also is the html also automatically created How

Stefan Holst · Answer

yes pip3 install lt the three mentioned packages gt

Paul Schulz · Answer

I would like to run something like the following in my home directory python3 GDS2WebGL gds2webgl py i gds mawson lakes org gds o doc mawson lakes org js

Paul Schulz · Answer

Thanks I can generate the js slightly smiling face

Stefan Holst · Answer

If you specify a html file as output it generates html

Paul Schulz · Answer

I might do an Open Hardware logo for you instead of the <http MawsonLakes Org|MawsonLakes Org> one

Paul Schulz · Answer

ok choking on index html let me copy that

Stefan Holst · Answer

It might have trouble finding index html bundle js if you call it from another directory though

Paul Schulz · Answer

Hmmm

Paul Schulz · Answer

Ok it works if I put a copy of these files in the current working directory

Paul Schulz · Answer

Wow just saw something I need to fix slightly smiling face

Stefan Holst · Answer

Yes Might need to do a proper python package in the future

Paul Schulz · Answer

All good I will document what I did in order to get it to work At the end of the day I would like something that I can run from a Makefile that builds all the html s for all of the gds files

Stefan Holst · Answer

Open Hardware Logo sweet Looking forward to that one If you find any bugs let me know

Paul Schulz · Answer

Github pull request sent Changes the example to open source hardware