Talk:Signal integrity

message: I am not sure who is writing this page, but there are several typographical and factual errors.  The content seems to be geared towards promoting "select" textbooks and does not list the fundamental work done by several experts.  The most notable exclusion is of a text by Dally and Poulton.  It seems written too hastily.
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Hi!  I'm Lou Scheffer.  There was no entry at all for Signal Integrity, so I made an initial stab at one.  I'm an IC guy, and in this field the first and best known authors are Vinod Kariat, Ken Shepard, and others from their group at IBM, with their initial paper on Harmony.  (These folks, after IBM, founded CadMOS, a SI startup that was bought by Cadence).  I got permission to take part of a chapter he wrote and use that as the article.
Of course, there are also lots of SI issues on PC boards, which were not addressed in the initial article.  Looking at the edit log, it appears that "Howard Johnson" added most of this part.  Then lots of others made smaller changes.  
If you find factual errors and/or typos, please just go ahead and fix them.  That's the beauty of Wikipedia!.  Adding more reference texts is also welcome.
LouScheffer 18:43, 27 December 2006 (UTC)
thread_title: Comments

message: Maybe it should go with the phrase "In CMOS..."?  Woz2 (talk) 23:08, 3 February 2008 (UTC)
replies: text: It was the basis for the initial text of the article (with permission).  Of course a lot has changed since then, in particular the PCB section has been added.  It goes along with most of the CMOS stuff, but not the PCB stuff. LouScheffer (talk) 01:09, 4 February 2008 (UTC)
thread_title:  Where should the the ref "Noise Considerations in Digital ICs, by Vinod Kariat." point to? 

message: Something like:
In digital electronics, a stream of binary values is represented by a voltage (or current) waveform. Over short distances and at low bit rates, a simple conductor can transmit this with sufficient fidelity. However, at high bit rates and over longer distances, various effects, usually called impairments, can degrade the signal to the point where errors occur, and the device fails.  Signal integrity or SI engineering is the task of analyzing and mitigating these impairments. Signal integrity engineering is an important activity at all levels of electronics packaging, from internal connections of an integrated circuit (IC) Electronic Design Automation For Integrated Circuits Handbook, by Lavagno, Martin, and Scheffer,  A survey of the field of electronic design automation.  Portions of IC section of this article were derived (with permission) from Vol II, Chapter 21, Noise Considerations in Digital ICs, by Vinod Kariat., through the package, the printed circuit board (PCB), the backplane, and inter-system connections
High-Speed Digital Design: A Handbook of Black Magic, by Howard Johnson and Martin Graham, . A book for digital PCB designers, highlighting and explaining analog circuit principles relevant to high-speed digital design..  While there are some common themes at these various levels, there are also practical considerations that cause substantial differences in the approach to signal integrity for on-chip connections versus chip-to-chip connections. Therefore, this article has separate sections for each.
:This looks good.  My only change I would suggest would be to change the phrase "usually called impairments" to "often called impairments".  Searching scholar.google.com, which contains all the IEEE and ACM journals, shows 15K references to "signal integrity", but only 283 contain the words impairment or impairments (and only one of these talks about signal integity for signals purely on-chip).  This matches my personal experience - as far as I know the term is not commonly used for issues with SI entirely on chip.  
:Also it might make sense to put the PCB/system part first.  There are surely more PCB designers than IC designers, and the field itself is older (back to the days of telegraphs). LouScheffer (talk) 17:49, 11 February 2008 (UTC)
replies: text: OK, I started the division.  Feel free to improve, LouScheffer (talk) 03:33, 12 February 2008 (UTC)
thread_title:  Rewrite: How about this intro and structure? 

message: (IC internal connection section)
Need a section on off-chip SI, e.g. loss tangent and other related losses and distortions.  PCB dielectric loss particularly, e.g. needs work. --74.107.74.39 (talk) 00:26, 27 March 2011 (UTC)
thread_title: On-chip Signal Integrity

message: (other sources: preferably remove the blantant ads that have been added)
Woz2 (talk) 16:21, 11 February 2008 (UTC)
replies: text: Thanks, Lou, this is heading in the right direction, I think. We can work on the on-chip and chip-to-chip sections, then see what common themes emerge for the "Common Themes" section. I planned to contribute to the chip-to-chip section in the near future.  Woz2 (talk) 02:58, 16 February 2008 (UTC)
thread_title: Further Reading

message: I suggested to change Agilent Technologies to Keysight Technologies of application notes's title in Notes section because Agilent's Electronic Measurement business is now Keysight Technologies. Keysight Technologies was spun off from Agilent Technologies in 2014. Keysight compromises of Agilent’s test and measurement products and software. 
The two applicate notes are:
7.  "Eight Hints for Debugging and Validating High-Speed Buses," Application Note 1382-10, Agilent Technologies
14.  "Using Clock Jitter Analysis to Reduce BER in Serial Data Applications", Application Note, literature number 5989-5718EN, Agilent Technologies
Please let me know if you have any question.
SOPHIASONGPANDA (talk) 08:16, 15 April 2021 (UTC)
thread_title:  Edit request: Change Agilent Technologies to Keysight Technologies