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Modeling >> Semiconductor Devices >> material on SiGe
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Message started by vivkr on Dec 7^th, 2006, 8:41am

Title: material on SiGe
Post by vivkr on Dec 7^th, 2006, 8:41am

Hi,

Can anybody suggest a good reference for the basics of SiGe transistor operation where the basic parameters
such as Gm and Ft are also derived?

I remember reading a doc on the IBM website years ago as an undergrad where they gave an excellent explanation
of the graded base SiGe transistor and also SOI devices. However, I cannot find any useful links through Google
or IBM anymore, except tons of papers where SiGe was used or ads and news releases from companies.

Thanks
Vivek

Title: Re: material on SiGe
Post by ACWWong on Dec 8^th, 2006, 7:53am

Hi Vivek,
I recall I attended an excellent workshop on SiGe in a workshop at RFIC symposium Boston 2000. Its normally quite tough to get hold of the workshop notes but try the IEEE.
Anyway doing an IEEE search for D. Greenberg (IBM) or V. Ilderem (was motorola) might help.
I believe similar technical SiGe tutorials were given a BCTM (bipolar/bicmos circuits technology meeting) around the same time (circa 1997~2000).
Also try the SiGe technology book out recently by Peter Ashburn.
Yes, having used a few of the SiGe family of IBM processes, I can say there documentation provided in there design kits is very good and often included technology training in addition to model and user guides.
cheers
aw

Title: Re: material on SiGe
Post by Geoffrey_Coram on Dec 8^th, 2006, 12:06pm

The Mextram 504 transistor model includes some parameters for SiGe transistors; you might want to look at the documentation at the NXP (was Philips Semiconductor) web site:

http://www.nxp.com/Philips_Models/bipolar/mextram/

Title: Re: material on SiGe
Post by krishnap on Dec 11^th, 2006, 5:52am

Hi Vivek,

HICUM is another model used for the SiGe device.
Please find the link which explains the model, and parameters like ft.
www.iee.et.tu-dresden.de/iee/eb/mitarbeiter/publikat/SiGe_HBT_modeling_Tutorial_2.6.pdf

Thanks and regards,
krishna

Title: Re: material on SiGe
Post by vivkr on Dec 15^th, 2006, 12:42am

Hi everyone,

Many thanks for the responses. I was able to get useful information from these. I also found a rudimentary but nonetheless useful summary of SiGe BJT
operation in the textbook by Gray and Meyer in the first chapters.

Regards
Vivek