I need MOSFET design.
Use the MOSFET simulator on [login to view URL] ([login to view URL]) to design an n-type MOSFET using the following specifications:
Uniform doping density
Channel length = 22 nm
Oxide thickness ≥ 0.8 nm
S/D length ~ 2×Channel length
Junction depth ~ Channel length
Substrate thickness ~ 40 nm
Device width = 1000 nm
S/D doping concentration = 2×1020 cm-3
Channel doping concentration ≤ 1×1019 cm-3
Substrate doping concentration = 5×1016 cm-3
On the “model” phase, carefully look through the input parameters. Use the following:
Gate type: n+ polysilicon
Activate the following models (set ‘yes’):
Concentration dependent scattering
Vertical field dependent mobility
Parallel field dependence
On the “voltage sweep” phase:
Maximum supply voltage (VG and VD) = 0.8 V
Plot along length = ‘yes’
Plot along depth = ‘yes’
Where to plot 1-D plots along length ≡ 5nm
Where to plot 1-D plots along depth ≡ 55nm
Desired outputs:
Maximum current ≥ 600 μA
Off current (for VG = 0V and VD = 0.8V) ≤ 10 μA
S ≤ 200 mV/dec
Attach the snapshots of IV characteristics and your calculation with the report.
Hint:
You should be fine-tuning the “oxide thickness” and/or “channel doping density” mainly keeping in mind their (lower/upper) limits. You need to plot two curves for the ID-VGS characteristic for VD = 0.05 and 0.8 V. Also, sweep your gate voltage from -0.5V to 0.8 V (threshold voltage can be negative with n+ polysilicon gates!).
Here I am an Electrical Power Engineer, currently doing MSC in Power Electronics, as I understand all the data you have mentioned in the description, I can try for this, This will be a fun for me to do.. Text me to discuss more.