Primitive device: PNP/NPN (vertical oder lateral) for CMOS-only

[hpretl]

For CMOS-only designs, an NPN or PNP (either lateral or vertical) would be needed for bandgaps and similar uses.

[christoph-weiser]

Is pnpMPA not the device you are looking for?

[hpretl]

Thanks for the pointer, you are absolutely right! I totally missed it because there is no pcell in KLayout (at least none that I can find) and no mention in the process description, but there is a model and symbol for simulation and a fixed layout in sg13g2_pr.gds.

@KrzysztofHerman @sergeiandreyev Are there plans to provide a pcell, or is there one fixed size of PNP with a fixed layout (which is quite the norm for parasitic PNPs)? In any case, a description in the SG13G2_process_spec.pdf would be great!

[sergeiandreyev]

Hi @hpretl, yes, we're working on the pnpMPA Pycell conversion for the OpenPDK
btw, we have still around 18 devices that are planned to be provided in addition to the current content

[hpretl]

@sergeiandreyev cool! Do you have a rough timeline for the remaining cells? Do you have an existing GH issue to track the implementation of these cells? Then I could link this and one other issue to the implementation one.

[sergeiandreyev]

unfortunately, we don't have dedicated resources for this task, so the timeline is rather hard to define..
I agree, it will be useful for tracking, so I will create a separate GitHub 'enhancement' issue for new devices

[sergeiandreyev]

In any case, a description in the SG13G2_process_spec.pdf would be great!

after checking this internally, the feedback is that we have a new pnpMPA device implementation in progress, so the process spec is planned to be updated with this new device

[hpretl]

after checking this internally, the feedback is that we have a new pnpMPA device implementation in progress, so the process spec is planned to be updated with this new device

Excellent, good to hear! @sergeiandreyev Do you have a timeline for the bundle (doc, model, pcell)?

[sergeiandreyev]

Do you have a timeline for the bundle (doc, model, pcell)?

around 6 month..

[sergeiandreyev]

btw, we have still around 18 devices that are planned to be provided in addition to the current content

I agree, it will be useful for tracking, so I will create a separate GitHub 'enhancement' issue for new devices

for now putting the list of 2nd priority/phase devices here..

Category	Device
Chip	pad
Contacts	ntap
	ntap1
	ptap
	ptap1
	ptapSB
Diodes	schottky_nbl1
Bipolars	pnpMPA
Passives	rfcmim
Mosfets	SVaricap
	rfnmos
	rfnmosHV
	rfpmos
	rfpmosHV
Special	NoFillerStack
	diffstprobe
	iprobe
	isolbox
	lvsres
Text	chipText

for some of these devices there is still ongoing discussion

[olisnr]

because You allready give us the measurements of different pnpMPAs, it would be nice, You also give the test-chip-layouts as .gds with it. then the need for a PCell is much smaller.
at the moment there is only the 1u/2u variant available from the ihp-sg13g2/libs.ref/sg13g2_pr/gds/sg13g2_pr.gds

[olisnr]

im also interested in the SVaricap. is there more information about what it can and how to use?