<?xml version="1.0" encoding="UTF-8"?><?xml-stylesheet type="text/xsl" href="static/style.xsl"?><OAI-PMH xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd"><responseDate>2026-09-21T12:33:07Z</responseDate><request verb="GetRecord" identifier="oai:dspace.mit.edu:1721.1/119285" metadataPrefix="dim">https://dspace.mit.edu/server/oai/request</request><GetRecord><record><header><identifier>oai:dspace.mit.edu:1721.1/119285</identifier><datestamp>2022-01-13T07:54:48Z</datestamp><setSpec>com_1721.1_7582</setSpec><setSpec>com_1721.1_7581</setSpec><setSpec>col_1721.1_131023</setSpec></header><metadata><dim:dim xmlns:dim="http://www.dspace.org/xmlns/dspace/dim" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:doc="http://www.lyncode.com/xoai" xsi:schemaLocation="http://www.dspace.org/xmlns/dspace/dim http://www.dspace.org/schema/dim.xsd">
   <dim:field mdschema="dc" element="contributor" qualifier="advisor" lang="en_US">Michael J. Ricard and Juan Pablo Vielma.</dim:field>
   <dim:field mdschema="dc" element="contributor" qualifier="author" lang="en_US">Herrling, Austin Donald, First Lieutenant</dim:field>
   <dim:field mdschema="dc" element="contributor" qualifier="other" lang="en_US">Massachusetts Institute of Technology. Operations Research Center.</dim:field>
   <dim:field mdschema="dc" element="contributor" qualifier="department">Massachusetts Institute of Technology. Operations Research Center</dim:field>
   <dim:field mdschema="dc" element="contributor" qualifier="department">Sloan School of Management</dim:field>
   <dim:field mdschema="dc" element="date" qualifier="accessioned">2018-11-28T15:25:58Z</dim:field>
   <dim:field mdschema="dc" element="date" qualifier="available">2018-11-28T15:25:58Z</dim:field>
   <dim:field mdschema="dc" element="date" qualifier="copyright" lang="en_US">2018</dim:field>
   <dim:field mdschema="dc" element="date" qualifier="issued" lang="en_US">2018</dim:field>
   <dim:field mdschema="dc" element="identifier" qualifier="uri">http://hdl.handle.net/1721.1/119285</dim:field>
   <dim:field mdschema="dc" element="identifier" qualifier="oclc" lang="en_US">1065542148</dim:field>
   <dim:field mdschema="dc" element="description" lang="en_US">Thesis: S.M., Massachusetts Institute of Technology, Sloan School of Management, Operations Research Center, 2018.</dim:field>
   <dim:field mdschema="dc" element="description" lang="en_US">This electronic version was submitted by the student author.  The certified thesis is available in the Institute Archives and Special Collections.</dim:field>
   <dim:field mdschema="dc" element="description" lang="en_US">Cataloged from student-submitted PDF version of thesis.</dim:field>
   <dim:field mdschema="dc" element="description" lang="en_US">Includes bibliographical references (pages 109-111).</dim:field>
   <dim:field mdschema="dc" element="description" qualifier="abstract" lang="en_US">In this thesis, we explore wire routing strategies for new paradigms in chip design. Where current chip design techniques involve multi-layered techniques to prevent wire crossings and electrical interference, we work with new technology that utilizes coaxial wires, allowing the construction of single-layered chips. Though the single layer lends itself well to optimization techniques, this approach generates novel challenges of its own. We design and implement multiple global routing algorithms appropriate for the new technology, and we discuss how these algorithms address technical constraints introduced by dierent variations of the routing problem. We cover three approaches using dierent techniques; these include simulated annealing, local heuristics, and global mixed-integer optimization. We demonstrate the performance of these algorithms on physical chip designs and existing layouts, including metrics of total wire length, overall routability, and running time. We also discuss our process of algorithm design, specically in context of satisfying engineering requirements decided by an external technical team. Finally, we describe our ideas for future areas of research, tailored towards improvement of our approaches and addressing technical problems that will be introduced as the new technology develops.</dim:field>
   <dim:field mdschema="dc" element="description" qualifier="statementofresponsibility" lang="en_US">by Austin Donald Herrling.</dim:field>
   <dim:field mdschema="dc" element="description" qualifier="degree" lang="en_US">S.M.</dim:field>
   <dim:field mdschema="dc" element="format" qualifier="extent" lang="en_US">111 pages</dim:field>
   <dim:field mdschema="dc" element="language" qualifier="iso" lang="en_US">eng</dim:field>
   <dim:field mdschema="dc" element="publisher" lang="en_US">Massachusetts Institute of Technology</dim:field>
   <dim:field mdschema="dc" element="rights" lang="en_US">MIT theses are protected by copyright. They may be viewed, downloaded, or printed from this source but further reproduction or distribution in any format is prohibited without written permission.</dim:field>
   <dim:field mdschema="dc" element="rights" qualifier="uri" lang="en_US">http://dspace.mit.edu/handle/1721.1/7582</dim:field>
   <dim:field mdschema="dc" element="subject" lang="en_US">Operations Research Center.</dim:field>
   <dim:field mdschema="dc" element="title" lang="en_US">Optimization of micro-coaxial wire routing in complex microelectronic systems</dim:field>
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   	&lt;Title>Optimization of micro-coaxial wire routing in complex microelectronic systems&lt;/Title>
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   	&lt;PublicationDate>2018&lt;/PublicationDate>
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    &lt;Keyword>Operations Research Center.&lt;/Keyword>
   	&lt;Abstract>In this thesis, we explore wire routing strategies for new paradigms in chip design. Where current chip design techniques involve multi-layered techniques to prevent wire crossings and electrical interference, we work with new technology that utilizes coaxial wires, allowing the construction of single-layered chips. Though the single layer lends itself well to optimization techniques, this approach generates novel challenges of its own. We design and implement multiple global routing algorithms appropriate for the new technology, and we discuss how these algorithms address technical constraints introduced by dierent variations of the routing problem. We cover three approaches using dierent techniques; these include simulated annealing, local heuristics, and global mixed-integer optimization. We demonstrate the performance of these algorithms on physical chip designs and existing layouts, including metrics of total wire length, overall routability, and running time. We also discuss our process of algorithm design, specically in context of satisfying engineering requirements decided by an external technical team. Finally, we describe our ideas for future areas of research, tailored towards improvement of our approaches and addressing technical problems that will be introduced as the new technology develops.&lt;/Abstract>
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