@Holger Vogt does it make sense to perform

.disto

analysis using IHP Mosfet models or it is not supported ?

What is the delivery timeline for CI2404? The chipignite portal posted above states the delivery date is September 16th, is there any update to that?

@Diarmuid Collins Efabless uses ball bonding

Got my clear on last Friday, I measure xclk at @10MHz and ~@48MHz at IO36. The management SoC seems to work OK, I played with the PLL and measure the changes on xclk successful, but I were unable to test any example that from the CLEAR git, nor any example of the SOFA branch of the synth tools, nor any simple counter (trying to infer clk auto-magically as stated in the Readme). Does anyone have a minimal example that work on the FPGA side? I configure the FPGA with ftdi_fpga.py, does it have a difference if I program the FPGA with process_bit_stream?

Hello everyone, I'm designing a classical opamp. The formula of $(W/L)_3$ requires parameters of maximum voltage threshold of PMOS_3 V_T03 (max) and V_T01 (min). How can I determine these parameters in SKY130a? Thank you for your consideration!

Also, if I want to check the frequency of a waveform what would be an accurate way to do the same? Should I use the

fft

command from ngspice or is there a better way to do the same?

I am using xschem but I don't know how to modify these lines that always get included in my netlist (using ngspice):

What could be the cause for this error which showed while I was performing rte verification for a basic adder. Slack Conversation

@Tim Edwards when you get a chance, could you explain how magic handles multiple derivations of the same layer? For example nwell is defined 3 times and pwell twice in the sky130 tech file. nwell

layer nwell NWELL,WELLTXT,WELLPIN
 and-not PNPID
 labels NWELL
 labels WELLPIN port
 labels WELLTXT text
...
 layer nwell pfetarea
 and-not COREID
 grow 180
...
 layer nwell EDID
 and POLY
 and DIFF
 and PSDM
 grow 685
 or ldmos_nwell
 grow 420
 shrink 420

pwell

layer pwell TAP,DIFF
 and-not NWELL,nwelcheck
 grow 130
 or SUBTXT,SUBPIN
 grow 420
 shrink 420
 labels SUBPIN port
 labels SUBTXT text
...
 layer pwell EDID
 and POLY
 and DIFF
 and NSDM
 grow 660
 grow 420
 shrink 420

Hi, I edited a LEF file using Klayout using the sky130A technology and saved it as a GDS. When I open the saved GDS file, the layers are named

1/0

,

1/1

and so on rather than the sky130A names. Loading the layout using the same sky130A technology fails to load the layer properties correct. This does not happen when saved as an OASIS file or MAG layout. Is there some configuration I need to set to correctly save the layout? Thanks.