Bertrand Ardouin Thomas Zimmer XMOD Technologies: Hicum toolkit & extraction services HICUM...

Bertrand ArdouinThomas Zimmer

XMOD Technologies:Hicum toolkit & extraction services

HICUM Workshop, September 2002, Monterey

XMOD: Presentation

How to choose a compact model ?

Measurement, Extraction,

Modelling Services and Consulting

Hicum “Aperitif toolkit” Simple approach

OUTLINE


Where ?

XMOD is here

Laboratoire de Microélectronique IXL


What ?

Co-operation and support from : � Technical University Dresden� University Bordeaux

A Start-up company in the Bipolar modelling domain :

� Offering parameter extraction software

� Provide extraction and modelling services

(parameter extraction, on wafer measurements, …)

� Hicum (SGP and VBIC models also supported)

� Single transistor and scaling approach

� Custom models for specific applications (HDL-A)


What ?

0

5

10

15

20

25

30

35

40

45

0.0001 0.001 0.01 0.1Ic (A)

f T (

GH

z)

meas

hicum

NWA HP 8510C (HF, CV)

HP 4155B (DC)

C-V meter HP 4284 (C-V)

T controler -60 °C up to 200 °C

0

0.001

0.002

0.003

0 1 2Vce (V)

Ic (

A)

measurehicum

Semi-automatic prober Karl Suss PA200

On wafer measurement capabilities


What ?

The “Hicum Aperitif Toolkit”Single transistor methodology

“In House” ICCAP tools for complete parameter extraction


Why ?

Efficiency: ability to model complex technologies

Simplicity:Time requirement= save money

VBIC

Gummel-PoonHicum

Mextram


Why ?

Efficiency: ability to model complex technologies

Simplicity:Time requirement= save money

VBIC

Gummel-PoonHicum

Mextram

Scalability not taken into account

Single transistor strategy


Why ?

There’s a need for companies in this domain:

� Help to accelerate the FIRST use of Hicum and

help to establish a wide use

� Provide complete extraction services for

companies having no experience in the

bipolar domain (SiGe and III-V HBT’s)

� Provide consulting for modelling of very High

frequency devices, need of scaling, ...

Centralise Bipolar experience


Goals of the “Hicum Aperitif Toolkit”

? HicumGummel-Poon

Switch

Learn a new model and new tools

Scaling approach can be complex

New test structures on the wafers



HicumGummel-Poon

Switch

“Hicum Aperitif Toolkit” allows to use the single transistor strategy (SGP like)

Decouple Scaling from parameter extraction

No specific test structures

Simplified approach



“Hicum Aperitif Toolkit” allows to:

A smooth transition from SGP to Hicum

Obtain efficient and physically meaningful parameter sets for Hicum(from direct extraction)

Evaluate the model without too much effort

Parameters extracted for the single transistor approach will be required for scaling (Transit time)


Description of the toolkit

Probes

ICCAP measurements

toolkit

Instruments

Standard Bipolar

Measurement Database

Hicum “Aperitif” ToolkitICCAP

Gummel-Poon, VBIC,

MEXTRAMTRADICA and BIPAX



ICCAP « Hicum aperitif Toolkit »New GUI interface



Main window

Import data

Define

Select mdm file + view header

Simply select directory

Import



Temperature

Comments on technology

Define things



Extract

Extraction steps

Parameter group Edit parameters

Status

RunHICUM Workshop, September 2002, Monterey


Export Results

Export Directory

Utilities

Create HTML documentationHICUM Workshop, September 2002, Monterey


Optimize

Get from plots

Tune


0

5

10

15

20

25

30

35

40

45

0.0001 0.001 0.01 0.1Ic (A)

f T (

GH

z)

mesures

hicum

BiCMOS SiGe 0.35 µm ST Microelectronics

fT = 45 GHz

0

10

20

30

40

50

60

70

80

90

100

110

120

1.E-08 1.E-06 1.E-04 1.E-02Ic (A)

Be

ta

meas

hicum

Parameter extraction: Results

fT (Ic) (Vce)



Ic (Vce)Ic (Vbe), Ib (Vbe)

0

0.001

0.002

0.003

0 1 2Vce (V)

Ic (

A)

mesurehicum

1E-10

1E-09

1E-08

1E-07

1E-06

1E-05

0.0001

0.001

0.01

0.1

0.4 0.5 0.6 0.7 0.8 0.9 1Vbe (V)

Ic, I

b (A

)

Ic (mesure)

Ic (hicum)Ib (mesure)

Ib (hicum)


fT = 45 GHz




fT = 45 GHz

1.E-07

1.E-06

1.E-05

1.E-04

1.E-03

1.E-02

1.E-01

1.E+00

0 0.5 1 1.5 2 2.5 3VCE (V)

g 0 (

S)

Mesures Hicum

g0 = d IC / dVce



fT (Ic)

0

10

20

30

40

50

60

70

80

0.0001 0.001 0.01 0.1Ic (A)

f T (

GH

z)

mesure

hicum


fT = 75 GHz




fT = 120 GHz

0

20

40

60

80

100

120

140

1.E-04 1.E-03 1.E-02 1.E-01IC (A)

f T (

GH

z)


Conclusion

XMOD provides Software, Consulting and

Services for Bipolar Modelling community

“Hicum Aperitif Toolkit” is ready for

evaluation

Simplified approach allows to familiarise

with the model and extend its interest

Scaling and statistics planed


Bertrand Ardouin Thomas Zimmer XMOD Technologies: Hicum toolkit & extraction services HICUM...

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