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https://designers-guide.org/forum/YaBB.pl Modeling >> Semiconductor Devices >> Gummel symmetry in BSIM3/BSIM4 MOSFET model https://designers-guide.org/forum/YaBB.pl?num=1148136235 Message started by 337see733 on May 20th, 2006, 7:43am |
Title: Gummel symmetry in BSIM3/BSIM4 MOSFET model Post by 337see733 on May 20th, 2006, 7:43am Dear all, I have come across some old( or new?) slides concerning this issue by BSIM4. Is it right to say that BSIM3/BSIM4 still having this problem? Thanks. |
Title: Re: Gummel symmetry in BSIM3/BSIM4 MOSFET model Post by Geoffrey_Coram on May 24th, 2006, 4:24am Yes, BSIM3 and BSIM4 still have these problems. The BSIM team found a way to fix (patch?) the current (id_chan) equation so that it has the right symmetries of derivatives at Vds=0. However, the charge model is significantly harder to fix, so the capacitances are quite asymmetrical. |
Title: Re: Gummel symmetry in BSIM3/BSIM4 MOSFET model Post by 337see733 on May 24th, 2006, 6:17pm THanks. |
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