# 0.8um CMOS process

## 0.8um CMOS process

### 1. unCox, Vtn, θ for NMOS

#### 1-2. HSPICE Netlist

* Problem 1.27 uCox, Vtn for 0.8um NMOS

* MOS model
.include p8_cmos_models.inc
* main circuit
mn 1 2 0 0 nmos L=1.6u W=16u

* power supply
vdd 1 0 5

*vdd 1 0 40 ***for theta

vgs 2 0 1

* analysis
.op
.dc Vgs 0 1 1m

*.dc Vgs 0 30 1m ***for theta

* options
.options post
.end

μnCox = 70 μA/V2
Vtn = 0.71 V

θ = 0.28 V-1

### 2. Lambda for NMOS

#### 2-2. HSPICE Netlist

* Problem 1.27 lambda for 0.8um NMOS
* MOS model
.include p8_cmos_models.inc

* main circuit
mn 1 2 0 0 nmos L=1.6u W=16u

* power supply
vdd 1 0 5
vgs 2 0 1

* analysis
.op
.dc Vdd 0 1 10m

* options
.options post
.end

#### 2-3. Simulation Result

λ = 0.0552 V-1 @ L = 1.6 μm
λL = 0.088 μm/V

### 3. Cov/W for NMOS

#### 3-2. HSPICE Netlist

* Problem 1.27 Cov/W for 0.8um NMOS

* MOS model
.include p8_cmos_models.inc

* main circuit
mn 0 1 0 0 nmos L=1.6u W=16u

* power supply
vgs 1 0 dc=0 ac=1

* analysis
.op
.ac dec 100 1 1k

* options
.options post

.end

#### 3-3. Simulation Result

Cov = 15.3 fF @ W = 16 μm
Cov/W = 0.96 fF/μm

### 4. Cdb/W for NMOS

#### 4-2. HSPICE Netlist

* Problem 1.27 Cdb/W for 0.8um NMOS

* MOS model
.include p8_cmos_models.inc

* main circuit
mn 0 0 0 1 nmos L=1.6u W=16u

* power supply

vb 1 0 dc=0 ac=1

* analysis
.op
.ac dec 100 1 1k

* options
.options post

.end

#### 4-3. Simulation Result

Cdb = 11.2 fF @ W = 16 μm
Cdb/W = 0.70 fF/μm

### 5. upCox, Vtp, θ for PMOS

#### 5-2. HSPICE Netlist

* Problem 1.27 uCox, Vtp for 0.8um PMOS

* MOS model
.include p8_cmos_models.inc

* main circuit
mp 0 3 2 2 pmos L=1.6u W=16u

* power supply
vdd 1 0 5
*vdd 1 0 40 ***for theta vgs 1 2 1

* analysis
.op
.dc vgs 0 1.5 1m0

*.dc vgs 0 30 1m0 ***for theta
.print i(v0)

* options
.options post

.end

upCox = 23μA/V2
Vtp = 0.72 V

θ = 0.74 V-1

### 6. lambda for PMOS

#### 6-2. HSPICE Netlist

* Problem 1.27 lambda for PMOS

* MOS model
.include p8_cmos_models.inc

* main circuit
mp 0 3 2 2 pmos L=1.6u W=8u

* power supply
vdd 1 0 5
vgs 2 3 1.2

v0 1 2 dc 0

* analysis
.op
.dc vdd 0 5 1m0
.print i(v0)

* options
.options post

.end

#### 6-3. Simulation Result

λ = 0.088 V-1 @ L = 1.6 μm
λL = 0.14 μm/V

### 7. Cov/W for PMOS

#### 7-2. HSPICE Netlist

* Problem 1.27 Cov/W for 0.8um PMOS

* MOS model
.include p8_cmos_models.inc

* main circuit
mp 0 1 0 0 pmos L=1.6u W=16u

* power supply
vgs 1 0 dc=0 ac=1

* analysis
.op
.ac dec 100 1 1k

* options
.options post

.end

#### 7-3. Simulation Result

Cov = 14.1 fF @ W = 16 μm
Cov/W = 0.88 fF/μm

### 8. Cdb/W for PMOS

#### 8-2. HSPICE Netlist

* Problem 1.27 Cdb/W for 0.8um PMOS

* MOS model

.include p8_cmos_models.inc

* main circuit

mp 0 0 0 1 pmos L=1.6u W=16u

* power supply

vb 1 0 dc=0 ac=1

* analysis

.op

.ac dec 100 1 1k

* options

.options post

.end

#### 8-3. Simulation Result

Cdb = 10.0 fF @ W = 16 μm
Cdb/W = 0.63 fF/μm

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