ivan848984
Newbie level 4
Hello. I am trying to design a custom inductor in Cadence Virtuoso for mm-wave applications in TSMC 130nm. I drew a spiral inductor (as seen in the attachment) in metal 8 and metal 7. I've run Quantus QRC and done RLCk extraction. Y parameter measurement yielded L = 137pH (which matches with theory - Bryan's formula), but Q is pretty high, around 180. I've also modeled inductor in HFSS and got Q = 16.5. I'm guessing I haven't included Substrate extraction in QRC, but I cannot find the techfile for that.
Also, what additional layers should I add in this inductor layout?
Any additional advice about this problem would be extremely helpful.
Thanks.
![substrate.png substrate.png](https://www.edaboard.com/data/attachments/52/52376-32b347ef8f3d49b378db4d0a0ec4a795.jpg)
Referring to previous thread https://www.edaboard.com/threads/278522/
Also, what additional layers should I add in this inductor layout?
Any additional advice about this problem would be extremely helpful.
Thanks.
![inductor.png inductor.png](https://www.edaboard.com/data/attachments/52/52375-4d6ca0248ba00318adef0bc06f4bd8b6.jpg)
![substrate.png substrate.png](https://www.edaboard.com/data/attachments/52/52376-32b347ef8f3d49b378db4d0a0ec4a795.jpg)
Referring to previous thread https://www.edaboard.com/threads/278522/
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