Sonnet User's Guide - Sonnet Software

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Copyright Notice Reproduction of this document in whole or in part, without the prior express written authorization of Sonnet Software, Inc. is prohibited. Documentation and all authorized copies of documentation must remain solely in the possession of the customer at all times, and must remain at the software designated site. The customer shall not, under any circumstances, provide the documentation to any third party without prior written approval from Sonnet Software, Inc. This publication is subject to change at any time and without notice. Any suggestions for improvements in this publication or in the software it describes are welcome. Trademarks The program names xgeom, emstatus, emvu, patvu, dxfgeo, ebridge, emgraph, gds, emserver, emclient, sonntcds, and sonntawr (lower case bold italics), Co-calibrated, Lite, LitePlus, Level2 Basic, Level2 Silver, and Level3 Gold are trademarks of Sonnet Software, Inc. Sonnet ® , em ® , and emCluster ® are registered trademarks of Sonnet Software, Inc. UNIX is a trademark of Unix Systems Labs. Windows NT, Windows2000, Windows ME, Windows XP and Windows Vista are trademarks of Microsoft, Inc. AutoCAD and Drawing Interchange file (DXF) are trademarks of Auto Desk, Inc. SPARCsystem Open Windows, SUN, SUN-4, SunOS, Solaris, SunView, and SPARCstation are trademarks of Sun Microsystems, Inc. HP, HP-UX, Hewlett-Packard are trademarks of Hewlett-Packard Company. ADS, Touchstone, and Libra are trademarks of Agilent Technologies. Cadence and Virtuoso are trademarks of Cadence Design Systems, Inc. AWR and Microwave Office are registered trademarks and EM Socket is a trademark of Applied Wave Research, Inc. GDSII is a trademark of Calma Company. Acresso, FLEXlm, and FLEXnet are registered trademarks of Acresso Software. OSF/Motif is a trademark of the Open Software Foundation. IBM is a registered trademark of International Business Machines Corporation. Linux is a registered trademark of Linus Torvalds. Redhat is a registered trademark of Red Hat, Inc. SuSE is a trademark of Novell, Inc. Adobe ® and Acrobat ® are registered trademarks of Adobe, Inc. AWR and Microwave Office are trademarks of Applied Wave Research, Inc. Platform is a trademark and LSF ® is a registered trademark of Platform Computing.
Table of Contents TABLE OF CONTENTS 1 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 The Sonnet Design Suite . . . . . . . . . . . . . . . . . . . . . . . . . 15 The Analysis Engine, em . . . . . . . . . . . . . . . . . . . . . . . . . 20 A Simple Outline of the Theory . . . . . . . . . . . . . . . . . 21 Em Origins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 2 WHAT’S NEW IN RELEASE 12 . . . . . . . . . . . . . . . . . . . . . . 23 Sonnet Lite . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 New Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 3 SUBSECTIONING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Tips for Selecting A Good Cell Size . . . . . . . . . . . . . . . . . . 30 Cell Size Calculator . . . . . . . . . . . . . . . . . . . . . . . . . 33 Viewing the Subsections . . . . . . . . . . . . . . . . . . . . . . . . . 33 Subsectioning and Simulation Error. . . . . . . . . . . . . . . . . . 34 Changing the Subsectioning of a Polygon . . . . . . . . . . . . . . 34 Default Subsectioning of a Polygon . . . . . . . . . . . . . . . 34 X Min and Y Min with Edge Mesh Off . . . . . . . . . . . . . . 37 X Min and Y Min with Edge Mesh On. . . . . . . . . . . . . . . 39 Using X Max and Y Max for an Individual Polygon . . . . . . 40 Using the Speed/Memory Control . . . . . . . . . . . . . . . . . . . 41 Setting the Maximum Subsection Size Parameter. . . . . . . . . 43 Defining the Subsectioning Frequency . . . . . . . . . . . . . . . . 44 Conformal Mesh Subsectioning. . . . . . . . . . . . . . . . . . . . . 44 Conformal Mesh Subsectioning Control. . . . . . . . . . . . . 46 4 METALIZATION AND DIELECTRIC LAYER LOSS. . . . . . . . . . . . . . 47 Metalization Loss . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 Sonnet’s Loss Model . . . . . . . . . . . . . . . . . . . . . . . . . 48 Problems In Determining Metal Loss . . . . . . . . . . . . . . 49 Determining Good Input Values . . . . . . . . . . . . . . . . . 50 Creating Metal Types . . . . . . . . . . . . . . . . . . . . . . . . 50 Metal Libraries . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 5
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