[IBIS] see the attached PDF-File - SI tool for a particular layer stacku p

Subject: [IBIS] see the attached PDF-File - SI tool for a particular layer stacku p
From: Craciun, Liviu-Dumitru (LCraciun@Becker.de)
Date: Fri Mar 22 2002 - 05:17:24 PST

Sorry,
 
the first mesage was converted and is not readable.
Please see the attached PDF-File. Thanks !
 
Regards,
Liviu Craciun
 
-----Ursprüngliche Nachricht-----
Von: Craciun, Liviu-Dumitru
Gesendet am: Freitag, 22. März 2002 09:49
An: ibis@eda.org
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@Becker.de

 

-----------------------------------------------------------------
|For help or to subscribe/unsubscribe, email majordomo@eda.org
|with the appropriate command message(s) in the body:
|
| help
| subscribe ibis <optional e-mail address, if different>
| subscribe ibis-users <optional e-mail address, if different>
| unsubscribe ibis <optional e-mail address, if different>
| unsubscribe ibis-users <optional e-mail address, if different>
|
|or email a request to ibis-request@eda.org.
|
|IBIS reflector archives exist under:
|
| http://www.eda.org/pub/ibis/email_archive/ Recent
| http://www.eda.org/pub/ibis/users_archive/ Recent
| http://www.eda.org/pub/ibis/email/ E-mail since 1993

This archive was generated by hypermail 2b28 : Fri Mar 22 2002 - 05:40:32 PST