[ibis-quality] Minutes from the 20 Nov 2007 ibis-quality meeting
- From: "Mike LaBonte (milabont)" <milabont@xxxxxxxxx>
- To: <ibis-quality@xxxxxxxxxxxxx>
- Date: Mon, 26 Nov 2007 13:36:14 -0500
Minutes from the 20 Nov 2007 ibis-quality meeting are attached. ARs:
AR: Moshiul add to 5.2.16
AR: Mike mark 5.2.17 for deletion
Mike
Minutes, IBIS Quality Committee
20 Nov 2007
11-12 AM EST (8-9 AM PST)
ROLL CALL
Adam Tambone
Barry Katz, SiSoft
Benny Lazer
Benjamin P Silva
Bob Cox, Micron
* Bob Ross, Teraspeed Consulting Group
Brian Arsenault
* David Banas, Xilinx
* Eckhard Lenski, Nokia Siemens Networks
Eric Brock
* Guan Tao, Huawei Technologies
Gregory R Edlund
Hazem Hegazy
John Figueroa
John Angulo, Mentor Graphics
Katja Koller, Nokia Siemens Networks
Kevin Fisher
Kim Helliwell, LSI Logic
Lance Wang, IOMethodology
Lynne Green
* Mike LaBonte, Cisco Systems
Mike Mayer, SiSoft
* Moshiul Haque, Micron Technology
Peter LaFlamme
Radovan Vuletic, Qimonda
Robert Haller, Enterasys
Roy Leventhal, Leventhal Design & Communications
Sherif Hammad, Mentor Graphics
Todd Westerhoff, SiSoft
Tom Dagostino, Teraspeed Consulting Group
Kazuyoshi Shoji, Hitachi
Sadahiro Nonoyama
Everyone in attendance marked by *
NOTE: "AR" = Action Required.
-----------------------MINUTES ---------------------------
Mike LaBonte conducted the meeting.
Call for patent disclosure:
- No one declared a patent.
AR Review:
- Mike mark IQ 5.3.3 for deletion
- TBD
- Mike unswap "S" & "M" in 5.3.17
- TBD
- Mike will send link to Arpad's presentation on waveforms for diff pairs
- TBD, couldn't find it
New items:
- Introduction of Guan Tao:
- Interested in correlation
- David and Roy have been working on correlation
- 5.2.9. {LEVEL 3} [Model Spec] Pulse subparameters complete:
- Bob: Pulse sub-params had something to do with stored charge
- Motorola had asked for it
- We could not think of any common technology that would need Pulse
- We voted to drop 5.2.9, 5.2.10, 5.2.11, and 5.2.12
- 5.2.13. {LEVEL 2} [Model Spec] S_Overshoot subparameters complete:
- Mike: these are more commonly used
- Could apply absolute maximum voltages as default
- Moshiul: dynamic is sometimes
- Moshiul: There is a new BIRD about this
- Mike read text of BIRD 103.1
- This BIRD is for dynamic overshoot
- 5.2.14. {LEVEL 2} [Model Spec] S_Overshoot subparameters match data sheet:
- This should be easy, because all datasheets have "Absolute Maximum" limits.
- 5.2.15. {LEVEL 2} [Model Spec] S_Overshoot subparameters track typ/min/max:
- Moshiul: not always
- Sometimes relative to a voltage other than VCC
- Maybe not be a typical limit
- Bob: each limit presume some VCC value
- IBIS does not allow typ to be absent
- Moshiul: do any tools use this?
- Some do
- Mike: can the low limit be tighter for max corner?
- Bob: possible but unlikely
- 5.2.16. {LEVEL 3} [Model Spec] D_Overshoot subparameters complete:
- David: are these really level 3?
- We voted to change 16 & 17 to level 2
- Mike: Is there another name commonly used for this?
- Bob: This keyword is not perfect for DDR2, but can be used.
AR: Moshiul add to 5.2.16
- 5.2.17. {LEVEL 3} [Model Spec] D_Overshoot subparams exceed S_Overshoot:
- IBISCHK catches this
- David: Do we give information on IBISCHK versions?
- Mike: IQ calls for using the latest
- David: available models are not checked with the latest
- See 1.1.2 below
- We agreed to delete this check
AR: Mike mark 5.2.17 for deletion
- 1.1.2. IQ1 Passes IBISCHK:
- Bob: it should be 4.2.2 or greater
- Mike: IBISCHK 4.2.2 should not cause problems for files that pass 3.2.9
- Non-monotonic checks will come out different
- Bob 3.2.9 was probably specified years ago, when it was current
- We will revisit this befoe releasing the spec
Bob complimented Moshiul and Micron for implementing IQ:
- They also publish documents regarding quality practices
- Moshiul can send links
Next meeting:
27 Nov 2007
11-12 AM EST (8-9 AM PST)
Phone: 1.877.384.0543 or 1.800.743.7560
Passcode: 90437837
Meeting ended at 12:xx PM Eastern Time.
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