Status of HICUM integration in circuit simulators

1
Status of HICUM integration in circuit simulators

• HICUM users meeting in Monterey
• September 2002

2
Basic tests

• 2 different sets of parameters, one with self
  heating.
• 3 test benches for each set of parameters at 27
  and 150ºC
• Forward Gummel simulation sweep at Vbc
  -0.5V,1.5V,0.5V.
• Ic vs. Vce characteristic at Ibcst. (Ib
  0.1u,10.1u,1u)
• fT vs. Vbe characteristic.
• The comparisons are made with Device, Pr.
  Schroters simulator.
• The tested simulators are Eldo, Spectre,
  Aplac, Hspice and ADS.
• gt ST Target less than 0.1 difference.

3
Tools tested
4
Device/Eldo Gummel Plot without self-heating
temp 150ºC
temp 27ºC
Max of error 0.12
Max of error lt0.1
5
Device/Eldo Gummel Plot with self heating
temp 27ºC
temp 150ºC
Max of error lt0.1
Max of error 0.11
6
Device/Eldo Ic vs Vce Ibcst Plot without
self-heating
temp 27ºC
temp 150ºC
Max of error lt0.01
Max of error lt0.01
7
Device/Eldo Ic vs Vce Ibcst Plot with self
heating
temp 27ºC
temp 150ºC
Max of error lt0.01
Max of error 0.01
8
Device/Eldo ft Plot without self-heating
temp 27ºC
temp 150ºC
Max of error lt0.01
Max of error lt0.01
9
Device/Eldo ft Plot with self heating
temp 27ºC
temp 150ºC
Max of error lt0.03
Max of error lt0.03
10
Device/Spectre Gummel Plot without self-heating
temp 150ºC
temp 27ºC
Max of error 0.02 Vbegt0.25V lt0.01
Max of error 1
11
Device/Spectre Gummel Plot with self heating
temp 150ºC
temp 27ºC
Max of error lt 0.1
Max of error 0.1
12
Device/Spectre Ic vs Vce Ibcst Plot without
self-heating
temp 27ºC
temp 150ºC
Max of error 0.1 Vcegt0.2V lt0.01
Max of error 0.07 Vcegt0.2V lt0.01
13
Device/Spectre Ic vs Vce Ibcst Plot with
self-heating
temp 150ºC
temp 27ºC
Max of error 0.1 Vbegt0.2V 0.01
Max of error lt0.1
14
Device/Spectre ft Plot without self-heating
temp 27ºC
temp 150ºC
Max of error lt0.02
Max of error lt0.01
15
Device/Spectre ft Plot with self heating
temp 150ºC
temp 27ºC
Max of error 4
Max of error 2
16
Device/Aplac Gummel Plot without self-heating
temp 27ºC
temp 150ºC
Device Aplac
Max of error 0.3 Vbegt0.25V lt0.1
Max of error 3 Vbelt0.6V lt0.1
17
Device/Aplac Gummel Plot with self-heating
temp 27ºC
temp 150ºC
Device Aplac
Max of error 15 0.25VltVbelt0.8V lt0.1
Max of error 25
18
Device/Aplac Ic vs Vce Ibcst Plot without
self-heating
temp 150ºC
temp 27ºC
Max of error 1 Vcegt0.1V lt0.01
Max of error 10
19
Device/Aplac Ic vs Vce Ibcst Plot with
self-heating
temp 27ºC
temp 150ºC
Max of error 1 Vbelt2V lt0.1
Max of error 40
20
Device/Aplac ft Plot without self-heating
temp 150ºC
temp 27ºC
Max of error 3
error 3
Max of error 4
21
Device/Aplac ft Plot with self heating
temp 27ºC
temp 150ºC
Max of error 60
Max of error 70
22
Device/Hspice Gummel Plot without self-heating
temp 27ºC
temp 150ºC
Max of error 1 Vbegt0.25V lt0.1
Max of error lt0.01
23
Device/Hspice Gummel Plot with self-heating
temp 150ºC
temp 27ºC
1.2
0.2
Vbe (V)
Max of error 0.1
Max of error 0.1
24
Device/Hspice Ic vs Vce Ibcst Plot without
self-heating
temp 27ºC
Device Hspice
temp 150ºC
temp 27ºC
Max of error lt0.01
Max of error lt0.01
25
Device/Hspice Ic vs Vce Ibcst Plot with
self-heating
temp 27ºC
temp 150ºC
Max of error 1 Vcegt0.1 lt0.01
Max of error lt0.03
26
Ft plot problem with Hspice

• The results presented in the following slides are
  imprecise.
• Precisions on the ft test
• The instantiation of an input and an output port
  is required.
• Until 0.5 of error for a S param. in dB between
  Hspice and the other simulators for a circuit
  composed of passive elements only.
• Problem of port instantiation reported to
  Synopsys.

27
Device/Hspice ft Plot without self-heating
temp 27ºC
temp 150ºC
Max of error 1
Max of error 0.8
28
Device/Hspice ft Plot with self-heating
temp 27ºC
temp 150ºC
Max of error 2
Max of error 8
29
Device/ADS Gummel Plot without self-heating
temp 27ºC
temp 150ºC
Max of error 8
Max of error gt100 at Vbc-0.5V Other Vbc 1
lt error lt10
30
Device/ADS Gummel Plot with self heating
180
temp 150ºC
Device ADS
temp 27ºC
Beta
0
0.2
Vbe (V)
1.2
Max of error gt100 for Vbc0.5V Other Vbc max
of error 30
Max of error gt10 Vbe lt 0.8V lt0.03
31
Device/ADS Ic vs Vce Ibcst Plot without
self-heating
temp 27ºC
temp 150ºC
Max of error gt90 Vcegt0.5V 1
Max of error gt1 Vcegt0.5V 0.01
32
Device/ADS Ic vs Vce Ibcst Plot with
self-heating
temp 27ºC
temp 150ºC
Max of error 100 Vbegt0.3V 10
33
Device/ADS ft Plot without self-heating
temp 150ºC
temp 27ºC
Max of error 0.9
Max of error 3
34
Device/ADS ft Plot with self heating
temp 150ºC
temp 27ºC
Max of error 60
Max of error 36
35
Comparison Sum-up
36
Set of parameters without self-heating
37
Set of parameters with self-heating