INTRODUCTION TO µWIND

(I)

EC535 DIGITAL VLSI DESIGN

Eng. Hesham Hamdy

MICROWIND

Microwind is a tool for designing and

simulating circuits at layout level.

The goal is to be familiar with this

tool.

palette

Lamda=0.5 *length of the technology used

Drawing and view tools Simulation tool

Open/Save file tool

Working

Area

Screen Direction

DRC/Sections/ruler tool

MICROWIND WINDOW

DESIGN RULES

N- WELL

r101Minimum width12λ

r102Between wells12 λ

r110Minimum well Area144 λ2

r 102r 101

N -

Well

r201Minimum N+ and P+ diffusion width

4λ

r 201

r 201

N -

Well

P+ Diff

N+ Diff

r202Between two P+ and N+ diffusions

4λ

N -

Well

P+ Diff

N+ Diff

r 202

r 202

r203Extra N-well after P+ diffusion

6λ

N -

Well

P+ Diff

N+ Diff

r 203

r 203

r204 Between N+ diffusion and n-well6 λ

r 204

N -

Well

P+ Diff

N+ Diff

r210Minimum diffusion area16λ2

r 210

r 210

N -

Well

P+ Diff

N+ Diff

r301Polysilicon Width2λ

N -

Well

P+ Diff

N+ Diff

Polysilicon

r 301

r 301

Polysilicon

r302Polysilicon gate on Diffusion

2λ

N -

Well

P+ Diff

N+ Diff

Polysilicon

r 302

r 302

Polysilicon

r307Extra Polysilicon surrounding

Diffusion 3λ

N -

Well

P+ Diff

N+ Diff

Polysilicon

r 307

r 307

r 307

r 307

Polysilicon

r304Between two Polysilicon boxes 3λ

N -

Well

P+ Diff

N+ Diff

Polysilicon

Polysilicon

r 304

r 304

r307Diffusion after Polysilicon4λ

N -

Well

P+ Diff

N+ Diff

Polysilicon

Polysilicon

r 307

r 307

r 307

r 307

r401Contact width2λ

Contact

Polysilicon

Contact

Metal/Polysilicon

Contact

r 401

r404Extra Poly surrounding contact1λ

Contact

Polysilicon

Contact

Metal/Polysilicon

Contact

r 404 r 404

r405Extra metal surrounding contact1λ

Contact

Polysilicon

Contact

Metal/Polysilicon

Contact

r 405 r 405

N -

Well

P+ Diff

N+ Diff

Polysilicon

Polysilicon

r403Extra diffusion surrounding contact

1λ

r 403

r 403

Metal 1

Metal 2

Metal 3

Metal 4

Metal 5

Metal 6

r 501

r 501

r501Between two Metals 4λ

r510Minimum Metal area 16λ2

r 510 r 510

r 510r 510

r 510 r 510

Metal 1

Metal 2

Metal 3

Metal 4

Metal 5

Metal 6

EXAMPLES

I- NMOS transistor

II- PMOS transistor

III-Inverter

EXAMPLE: NMOS

Choose technology

NOTE: extension for technology files is (rul)

check what happen to the palette at choosing 60u

EXAMPLE: PMOS

EXAMPLE: INVERTER