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- From: jean@cse.ucsc.edu (Jean McKnight)
- Newsgroups: comp.doc.techreports
- Subject: UCSC revised TR: Optimal Design of Self-Damped Lossy Transmission Lines in a Tree Network for Multichip Module
- Date: 4 Jan 1993 23:14:46 GMT
- Organization: University of California, Santa Cruz (CE/CIS Boards)
- Lines: 64
- Approved: compdoc-techreports@ftp.cse.ucsc.edu
- Message-ID: <1ic5sqINNkeq@darkstar.UCSC.EDU>
- NNTP-Posting-Host: oak.ucsc.edu
- Keywords: transmission line, lossy, self-damped, critical damped,
- Originator: golding@oak
-
- University of California at Santa Cruz
- Baskin Center for Computer Engineering and Information Sciences
-
- The following technical report is available electronically or as
- a paper copy. Instructions for getting either follow the abstract.
-
- UCSC-CRL-92-11 (available electronically as ucsc-crl-92-11.ps.Z)
- OPTIMAL DESIGN OF SELF-DAMPED LOSSY TRANSMISSION LINES IN A TREE
- NETWORK FOR MULTICHIP MODULE
- Jimmy S.-H. Wang and Wayne W.-M. Dai
- April 1992, revised December 1992, 19 pages (paper copy $5.00)
-
- Abstract: This paper addresses some of the problems encountered in
- propagating high-speed signals through lossy transmission lines on the
- substrates of silicon-on-silicon thin-film multichip modules (MCM).
- Instead of terminated by resistors, the lossy lines on the thin-film
- multichip modules can be structured to critically damp out the signal
- resonances, they are thus called *optimal, self-damped lossy
- transmission lines*. It is easiest to manufacture interconnection
- lines with fixed metal and dielectric thicknesses, and vary only the
- line width. This results in specific dependency of line width on
- length for self-damped lines. In this paper, we present the a simple
- and robust method of designing self-damped lossy transmission lines in
- a tree network for multichip module. We vary the width of each branch
- of the network to meet certain electrical damping criteria. This
- results in stable operation as long as the lossy transmission line is
- shorter than the quarter wave length of the highest frequency component
- of interests. The lengths of lines on the silicon-on-silicon thin-film
- MCM substrate usually does not exceed this limit. If certain designs
- require larger substrate or higher speed, the materials and structural
- properties of the substrate (for example the dielectric thickness)
- is changed according to the method.
- Keywords: transmission line, lossy, self-damped, critical damped,
- multichip module, multi-terminal network, distributed termination.
-
- This technical report is available electronically through either
- of the following methods:
- 1. through anonymous ftp from ftp.cse.ucsc.edu, in /pub/tr. Log in
- as "anonymous", use your email address as your password, specify
- "binary" before getting the file. Uncompress before printing.
- 2. by mail to automatic mail server rnalib@ftp.cse.ucsc.edu.
- Put this command on the subject line or in the body of the message:
- @@ send ucsc-crl-92-11.ps.Z from tr
- To get the index or abstract list:
- @@ send INDEX from tr
- @@ send ABSTRACTS.1992 from tr
- To get the list of the tr directory:
- @@ list tr
- To get the list of commands and their syntax:
- @@ help commands
-
- Order paper copies from: Technical Library, Baskin Center for Computer
- Engineering & Information Sciences, UCSC, Santa Cruz CA 95064.
- Purchase orders are not accepted. Checks or money orders must be
- for U.S. dollars, payable through a U.S. bank, and made out to
- "UC Regents".
-
- Questions: jean@cse.ucsc.edu
-
- ===========================================================================
- Co-moderator: Richard Golding, Computer & Information Sciences, UC Santa Cruz
- compdoc-techreports-request@ftp.cse.ucsc.edu
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