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Impact ionization in hemt

时间:04-06 整理:3721RD 点击:
Hi,
I tried to apply impact ionization in simulation of hemt design.
I applied the following command, but seems nothing different. is that true, or my simulation is wrong?
How to actually define the impact to be very close to the channel of the hemt?

1. impact selb
2. impact selb an1=2e26 bn1=3.42e7 ap1=2e26 bp1=1.95e7 an2=2.6e8 bn2=3.415e7 ap2=4.98e6 bp2=1.95e7 egran=3.e6 betan=1.0 betap=1.0

Can somebody help?
Many thanks.

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