[SI-LIST] see the attached PDF-File - SI tool for a particular layer stackup
- From: "Craciun, Liviu-Dumitru" <LCraciun@xxxxxxxxx>
- To: si-list@xxxxxxxxxxxxx
- Date: Fri, 22 Mar 2002 14:19:53 +0100
Sorry,
the first mesage was converted and is not readable.
Please see the attached PDF-File. Thanks !
Regards,
Liviu Craciun
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-----Ursprüngliche Nachricht-----
Von: Craciun, Liviu-Dumitru
Gesendet am: Freitag, 22. März 2002 09:49
An: si-list@xxxxxxxxxxxxx <mailto:si-list@xxxxxxxxxxxxx>
Cc: Exler, Hartmut
Betreff: SI tool for a particular layer stackup
Hi,
I have to simulate 8-layer PCBs with a particular stackup:
TOP ===== ==== ==============GND Plane with DISCONTINUITY
Dielectric 1
INNER 1 == == == == == == == SIGNALs
Dielectric 2
INNER 2 == == == == == == = SIGNALs
Dielectric 3
INNER 3 =============================CONTINUOUS GND Plane
........
etc ....
IMPORTANT:
TOP-Layer has a GND plane with many and relativ great discontinuities
thickness dielectric 1 and 2 = 0,050 mm !
thickness dielectric 3 = 0,350 mm ! !
Conclusion: a signal traces has partial 2 reference planes (0,050 mm and
0,400 mm),
partial only one reference plane (0,400 mm).
Yes, I know, there are better solutions. But I have to simulate also THIS
solution.
What Signal Integrity toll have you attended that are worthwhile
to simulate this particular structure ?
Thanks for your time.
Best regards
Liviu Craciun
HARMAN / BECKER AUTOMOTIVE SYSTEMS
______________________________________________________
Becker GmbH - Im Stöckmädle 1 - 76307 Karlsbad - Germany
Dipl.- Ing. Liviu Craciun
product engineering group
PDE-HW2, Produktentwicklung Hardware
phone: +49 (0) 7248 - 71 - 1614
fax: +49 (0) 7248 - 71 - 1205
eMail: LCraciun@xxxxxxxxx
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-- File: SI tool for a particular layer stackup.pdf
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