Error message

  • Notice: Trying to access array offset on value of type int in element_children() (line 6489 of /home1/dezafrac/public_html/ninethreefox/includes/common.inc).
  • Notice: Trying to access array offset on value of type int in element_children() (line 6489 of /home1/dezafrac/public_html/ninethreefox/includes/common.inc).
  • Notice: Trying to access array offset on value of type int in element_children() (line 6489 of /home1/dezafrac/public_html/ninethreefox/includes/common.inc).
  • Notice: Trying to access array offset on value of type int in element_children() (line 6489 of /home1/dezafrac/public_html/ninethreefox/includes/common.inc).
  • Notice: Trying to access array offset on value of type int in element_children() (line 6489 of /home1/dezafrac/public_html/ninethreefox/includes/common.inc).
  • Notice: Trying to access array offset on value of type int in element_children() (line 6489 of /home1/dezafrac/public_html/ninethreefox/includes/common.inc).
  • Notice: Trying to access array offset on value of type int in element_children() (line 6489 of /home1/dezafrac/public_html/ninethreefox/includes/common.inc).
  • Notice: Trying to access array offset on value of type int in element_children() (line 6489 of /home1/dezafrac/public_html/ninethreefox/includes/common.inc).
  • Notice: Trying to access array offset on value of type int in element_children() (line 6489 of /home1/dezafrac/public_html/ninethreefox/includes/common.inc).
  • Notice: Trying to access array offset on value of type int in element_children() (line 6489 of /home1/dezafrac/public_html/ninethreefox/includes/common.inc).
  • Notice: Trying to access array offset on value of type int in element_children() (line 6489 of /home1/dezafrac/public_html/ninethreefox/includes/common.inc).
  • Notice: Trying to access array offset on value of type int in element_children() (line 6489 of /home1/dezafrac/public_html/ninethreefox/includes/common.inc).
  • Notice: Trying to access array offset on value of type int in element_children() (line 6489 of /home1/dezafrac/public_html/ninethreefox/includes/common.inc).
  • Notice: Trying to access array offset on value of type int in element_children() (line 6489 of /home1/dezafrac/public_html/ninethreefox/includes/common.inc).
  • Notice: Trying to access array offset on value of type int in element_children() (line 6489 of /home1/dezafrac/public_html/ninethreefox/includes/common.inc).
  • Notice: Trying to access array offset on value of type int in element_children() (line 6489 of /home1/dezafrac/public_html/ninethreefox/includes/common.inc).
  • Notice: Trying to access array offset on value of type int in element_children() (line 6489 of /home1/dezafrac/public_html/ninethreefox/includes/common.inc).
  • Deprecated function: implode(): Passing glue string after array is deprecated. Swap the parameters in drupal_get_feeds() (line 394 of /home1/dezafrac/public_html/ninethreefox/includes/common.inc).

7

devedit user manual

LINK 1 ENTER SITE >>> Download PDF
LINK 2 ENTER SITE >>> Download PDF

File Name:devedit user manual.pdf
Size: 2876 KB
Type: PDF, ePub, eBook

Category: Book
Uploaded: 4 May 2019, 12:23 PM
Rating: 4.6/5 from 583 votes.

Status: AVAILABLE

Last checked: 12 Minutes ago!

In order to read or download devedit user manual ebook, you need to create a FREE account.

Download Now!

eBook includes PDF, ePub and Kindle version

✔ Register a free 1 month Trial Account.

✔ Download as many books as you like (Personal use)

✔ Cancel the membership at any time if not satisfied.

✔ Join Over 80000 Happy Readers

devedit user manualTonyPlot is a powerful tool designed. Multiple meshingmethodologies available, including manual and mask-generated simulation modules within a user-friendly environment provided by Silvaco or 3D structures generated by every Silvaco TCADtool: Athena, DevEdit, Atlas. You can try the DevEdit user's manual. It should give youan idea how to simulate circular-shaped device with itsexample. Jan 28, 2015. Pankaj Anand Shri.Collections About. Your access is provided by: Google. Group of crawlers. Register to createyour user account, or sign in if you have an existing account. I am building an NMOS using thedevedit Tcad software in silvaco. I would like to know if there is a way to get IV curves usingdevedit or how to call the atlas. DevEdit can be used to either create a device from scratch or toremesh or edit an existing capable of displaying 3D TCAD data generated by Silvaco TCADprocess or device More about TonyPlot 3D. Brochure 2.4 Mb. Release Notes ManualTonyPlot 3D provides a user-friendly environment to view 3D structures.Keywords DEVEDIT -3D, Illumination, ITO, Photogeneration, RayTrace, (9) ATLAS User's Manual: 3-D Device Simulator, SILVACOInternational, Version. Considering first case, as a structure editor, DEVEDIT in SILVACO andit offers fewer options for accurate grid refinement, and usually itrequires so much of manual instructions to produce Sentaurus DeviceUser Guide, September 2011. Conventional MOSFET by usingDEVEDIT-3D and ATLAS device simulator. The information contained in this document is subject to change without notice. Applications. - 2 - Mar 1, 2006 - (408) 567-1000. Internet: www.silvaco.com. DevEdit. User's Manual SILVACO INTERNATIONAL shall not be held liable for errors contained 2D Process Modeling with Silvaco. ATHENA DEVEDIT is an interactive tool for structure and mesh Silvaco ATHENA (SUPREM) analysis allows for the calculation of.Aug 13, 2010 - SILVACO, Inc. It should give you an idea how to simulate circular-shaped device with its example.http://www.equip-info.net/pimages/bosch-wfk2801-instruction-manual.xml

    Tags:
  • devedit user manual, devedit user manual, devedit user manual pdf, devedit user manual download, devedit user manual free, devedit user manual online.

To browse Academia.edu and the wider internet faster and more securely, please take a few seconds to upgrade your browser. You can download the paper by clicking the button above. Related Papers ATHENA User's Manual 2D PROCESS SIMULATION SOFTWARE By Sougata Ghosh Extract By rudayna kas Deepak 11EC62B04 project final By deepak kumar TonyPlot User's Manual By Thanh Phan Modeling and Simulation of a Gallium Nitride (GaN) Betavoltaic Energy Converter By marc litz READ PAPER Download pdf. Related Papers Gadoc151manual de grads By Patricia Porras Vasquez Extract By rudayna kas Amira Users Guide By Tercio Cotto FLUENT 6.3 User's Guide By Vivek kumar Modul Pemetaan Tingkat Dasar By edwin maulana READ PAPER Download pdf. Discover everything Scribd has to offer, including books and audiobooks from major publishers. Start Free Trial Cancel anytime.Browse Books Site Directory Site Language: English Change Language English Change Language. The interaction of a single ionized particle with electronic devices leads to SEEs. In this paper, single-event upset (SEU) on CMOS devices in designing of a voltage-controlled oscillator (VCO) is analysed. Further, mitigation approaches of SEU are also discussed. To observe the impact of radiation, a VCO was designed in Cadence Virtuoso, and GDSII file of one ring oscillator stage was extracted to incorporate the same design in Silvaco MaskViews. With the help of layer map information file, masks were identified and used to design the CMOS inverter structure file for simulation of SEU condition. The input parameters for SEU simulation were evaluated from linear energy transfer (LET) graph of heavy ion under space conditions. The current profile of CMOS inverter was extracted under influence of a high-energy particle with the help of LET graph of that particle. This current profile was applied to different nodes of VCO and upset conditions were identified.http://sherpahk.com/attachment/bosch-wfk2801-repair-manual.xml Further, the impact of upset conditions on lock stage of phase-locked loop (PLL) is discussed. The current profile of CMOS device has strong dependence on the energy of ion, its track, angle of incidence and the material. This work shows that a device operating at high frequency is more susceptible to SEU. Triple modular redundancy (TMR) and Radiation Hardened By Design (RHBD) can be used to mitigate SEU. TMR consumes more power and is less accurate compared with the RHBD approach. Subscription will auto renew annually. Taxes to be calculated in checkout. New York: Chapman and Hall New York: CRC Press New York: Wiley New York: Wiley Download citation Received: 08 November 2017 Revised: 07 March 2018 Accepted: 06 April 2018 Published: 27 September 2018 DOI: Keywords Radiation hardening SEU SEE RHBD voltage-controlled oscillators Subscription will auto renew annually. Taxes to be calculated in checkout. If you wish to download it, please recommend it to your friends in any social system. Share buttons are a little bit lower. Thank you! Please wait. February 2008. To use this website, you must agree to our Privacy Policy, including cookie policy. Style Conventions. Description. Example. This represents a list of items or. Bullet aBullet c. This represents a set of directions To open a doorThis represents a sequence of File-OpenCourier. This represents the commands,HAPPY BIRTHDAYTimes roman bold. This represents the menu options FileItalicsThis represents the additional. NoteNote: Make sure you save often when. Working on a manual. TIMES NEW ROMAN IN SMALL This represents the names of the ATHENA and ATLASTable of contents. Chapter 1. IntroductionTutorialTable of contents. Chapter 3. Editing FunctionsTable of contentsChapter 4. Statements,?,Introduction. What is devEdit. IntroductionDEV EDIT is a device structure editor. It can be used to generate a new mesh on an existingGraphical User Interface(GUD).https://www.becompta.be/emploi/02-mustang-gt-manual-auto-swap Note The gul is not available on windowsA mesh containing too many obtuse triangles or an insufficient number of triangles(tooUsing simulators,DEVEDIT resolves these problems by allowing structures to be created or read into DEVEDItThe mesh contained in the file can then beYou can refine the mesh by setting parameters thatIn the process of creating a structure, you can define a device by drawing it on the screen. DEV EDIT can also perform analytic implants using built-in cquations or cut lines from otherUse devedit when you want to perform the following operations. Defining a device interactively on the screen for subsequent device or processRemeshing a device structure between process simulation and device test simulationsRemeshing a device structure during a process or device simulation, when the mesh is noYou should not use DEVEiit to perform the following operations. Replacing numerical process simulations where accuracy is required. Meshing id device structuresWhat is devEdit. IntroductionYou can run DEV EDIT from the UNIX prompt or from DECK BUILD. There are two file typesIt contains the list ofAlthough the deveditStartup. You can start devedit one of two modes 2d and 3D. For 2D mode, typeFor 3D mode, typeTo start DeveDiT in GUI mode, use one of the following commands for a uNiX prompt. Command. DescriptionThis starts DEyedit with no active deviceThis starts DEvedit with the silvaco Standard structureThis starts DEv edir with the command file fred de loadedThis starts devedit in 3d mode with no active deviceThis starts devedit with the 3d command file fred deNote: Make sure you set your DISPLAY environmental variable to an active X window screen. Dev Edit User,s manual. Base window. IntroductionThe devedit base window display(Figure 1-1)is made up of several sections. Control buttons These menu buttons are used to control all devedit actions. Main Canvas-This area is used to show a graphical representation of the device.https://comprarpegatinas.com/images/bose-remote-control-manual.pdf Main Panel Displays a list of the regions in the current device and allows a region to beThe list contains all regions by name, number,User Added Impurities List- Displays a list of the user-added impurities as they areDev edit 2.3.2.A (no active file name). File v)( Regions F)(Impurities v)(Mesh T)( HAIn T)Hig light show Mesh ElEcka:w hite. Bor der Border poiFill Regions off patternsolidC?fContour Legend s off. Imr urIty Junctor. Scale TopRi. User Added im puritiesFigure 1-1 Base Window Display. DevEdit user's manualMesh parameters. Refine on quanlities. This proposed model simplifies the complex fabrication process of thin film solar cell in some easy steps which is more clearly visualizing method. The work is carried out in two stages which demonstrate the fabrication flow of single junction and Dual junction. A review is also done to show different generation of solar cells, Choice of material of TFSC and basic performance parameters of solar cell. On this basis, a comparison is also done in Single junction with Dual junction Solar cell. The modeling of TFSC is done through SilvacoDev-edit tool in which different layered structure, their dimensions and materials respectively, are taken from related research work. In order for HandleEasy to work together with yourScooter can be found in the rear of this manualRange (mV dc). Resolution. The modulus of the quasi-Fermi level gradients across each triangle are used, which is similar to the. E.VECTOR electric field model. ATLAS coordinate convention for the Y axis is that positive Y is.This Manual contains most of theThe following. TRAFFIC. AND PEDESTRIAN LIGHT SIGNALS.. country, provided that they areThis product is designedMFC programming is done on the LCD, we created step-by-step on-screen. SILVACO, Inc. shall not be held liable for errors contained herein or for incidental or consequential damages in connection with the furnishing, performance, or use of this material.www.gametimecatering.com/wp-content/plugins/formcraft/file-upload/server/content/files/16271c81b688d9---braun-bp1750-manual.pdf This document contains proprietary information, which is protected by copyright laws of the United States. All rights are reserved. No part of this document may be photocopied, reproduced, or translated into another language without the prior written consent of SILVACO, Inc. All other trademarks mentioned in this manual are the property of their respective owners. HAPPY BIRTHDAY New Century Schoolbook Bold This represents the menu options and buttons in the GUI. File New Century Italics This represents the equations. NEW CENTURY SCHOOLBOOK IN SMALL CAPS This represents the names of the SILVACO Products. SILVACO, Inc. Note: Make sure you save often while running an experiment.If you’re new to ATLAS, read this chapter and Chapter 2: “Getting Started with ATLAS” to understand how ATLAS works. Once you’ve read these chapters, you can refer to the remaining chapters for a detailed understanding of the capabilities of each ATLAS product. Those who have used earlier versions of ATLAS may find it helpful to review the updated version history in Appendix D: “ATLAS Version History”. ATLAS is designed to be used with the VWF INTERACTIVE TOOLS. The VWF INTERACTIVE TOOLS are DECKBUILD, TONYPLOT, DEVEDIT, MASKVIEWS, and OPTIMIZER. See their respective manuals on how to use these products. See Section 1.3: “Using ATLAS With Other Silvaco Software” for more information about using ATLAS with other Silvaco tools. ATLAS is supplied with numerous examples that can be accessed through DECKBUILD. These examples demonstrate most of ATLAS’s capabilities. The input files that are provided with the examples are an excellent starting point for developing your own input files. To find out how to access the example, see Chapter 2: “Getting Started with ATLAS”, Section 2.4: “Accessing The Examples”. SILVACO, Inc. Introduction 1.3: Using ATLAS With Other Silvaco Software ATLAS is best used with the VWF INTERACTIVE TOOLS. These include DECKBUILD, TONYPLOT, DEVEDIT, MASKVIEWS, and OPTIMIZER.alrashed-alsaleh.com/userfiles/files/boss-dr-55-manual.pdf DECKBUILD provides an interactive run time environment. TONYPLOT supplies scientific visualization capabilities. DEVEDIT is an interactive tool for structure and mesh specification and refinement. MASKVIEWS is an IC Layout Editor. The OPTIMIZER supports black box optimization across multiple simulators. ATLAS, however, is often used with the ATHENA process simulator. ATHENA predicts the physical structures that result from processing steps. The resulting physical structures are used as input by ATLAS, which then predicts the electrical characteristics associated with specified bias conditions. The combination of ATHENA and ATLAS makes it possible to determine the impact of process parameters on device characteristics. The electrical characteristics predicted by ATLAS can be used as input by the UTMOST device characterization and SPICE modeling software. Compact models based on simulated device characteristics can then be supplied to circuit designers for preliminary circuit design. Combining ATHENA, ATLAS, UTMOST, and SMARTSPICE makes it possible to predict the impact of process parameters on circuit characteristics. ATLAS can also be used as one of the simulators within the VWF AUTOMATION TOOLS. VWF makes it convenient to perform highly automated simulation-based experimentation. VWF is used in a way that reflects experimental research and development procedures using split lots. It therefore links simulation very closely to technology development, resulting in significantly increased benefits from simulation use. SILVACO, Inc. 1-3 ATLAS User’s Manual 1.4: The Nature Of Physically-Based Simulation ATLAS is a physically-based device simulator. Physically-based device simulation is not a familiar concept for all engineers. This section will briefly describe this type of simulation. Physically-based device simulators predict the electrical characteristics that are associated with specified physical structures and bias conditions.http://www.psstrecno.sk/wp-content/plugins/formcraft/file-upload/server/content/files/16271c83c8be9c---braun-butane-curling-iron-manual.pdf This is achieved by approximating the operation of a device onto a two or three dimensional grid, consisting of a number of grid points called nodes. By applying a set of differential equations, derived from Maxwell’s laws, onto this grid you can simulate the transport of carriers through a structure. This means that the electrical performance of a device can now be modeled in DC, AC or transient modes of operation. There are three physically-based simulation. Physically-based simulation is different from empirical modeling. The goal of empirical modeling is to obtain analytic formulae that approximate existing data with good accuracy and minimum complexity. Empirical models provide efficient approximation and interpolation. They do not provide insight, or predictive capabilities, or encapsulation of theoretical knowledge. Physically-based simulation has become very important for two reasons. One, it is almost always much quicker and cheaper than performing experiments. Two, it provides information that is difficult or impossible to measure. The drawbacks of physically-based simulation are that all the relevant physics must be incorporated into a simulator. Also, numerical procedures must be implemented to solve the associated equations. These tasks have been taken care of for ATLAS users. Those who use physically-based device simulation tools must specify the problem to be simulated. The subsequent chapters of this manual describe how to perform these steps. 1-4 SILVACO, Inc. Chapter 2: Getting Started with ATLAS 2.1: Overview ATLAS is a physically-based two and three dimensional device simulator. It predicts the electrical behavior of specified semiconductor structures and provides insight into the internal physical mechanisms associated with device operation. ATLAS can be used standalone or as a core tool in SILVACO’s VIRTUAL WAFER FAB simulation environment.http://drvision.org/wp-content/plugins/formcraft/file-upload/server/content/files/16271c859ac77f---braun-burr-coffee-grinder-manual.pdf In the sequence of predicting the impact of process variables on circuit performance, device simulation fits between process simulation and SPICE model extraction. This chapter will show you how to use ATLAS effectively. It is a source of useful hints and advice. The organization of topics parallels the steps that you go through to run the program. If you have used earlier versions of ATLAS, you will still find this chapter useful because of the new version. This chapter concentrates on the core functionality of ATLAS. If you’re primarily interested in the specialized capabilities of a particular ATLAS tool, read this chapter first. Then, read the chapters that describe the ATLAS tools you wish to use. SILVACO, Inc. 2-1 ATLAS User’s Manual 2.2: ATLAS Inputs and Outputs Figure 2-1 shows the types of information that flow in and out of ATLAS. Most ATLAS simulations use two input files. The first input file is a text file that contains commands for ATLAS to execute. The second input file is a structure file that defines the structure that will be simulated. ATLAS produces three types of output files. The first type of output file is the run-time output, which gives you the progress and the error and warning messages as the simulation proceeds. The second type of output file is the log file, which stores all terminal voltages and currents from the device analysis. The third type of output file is the solution file, which stores 2D and 3D data relating to the values of solution variables within the device at a given bias point. DevEdit (Structure and Mesh Editor) Runtime Output Structure Files ATLAS ATHENA Device Simulator Log Files (Process Simulator) TonyPlot (Visualization Tool) Command File Solution Files DeckBuild (Run Time Environment) Figure 2-1: ATLAS Inputs and Outputs 2-2 SILVACO, Inc. Getting Started with ATLAS 2.alliedpers.com/userfiles/files/boss-dr-5-user-manual.pdf3: Modes of Operation ATLAS is normally used in conjunction with the DECKBUILD run-time environment, which supports both interactive and batch mode operation. We strongly recommend that you always run ATLAS within DECKBUILD. In this section, we present the basic information you need to run ATLAS in DECKBUILD. The DECKBUILD USER’S MANUAL provides a more detailed description of the features and capabilities of DECKBUILD. 2.3.1: Interactive Mode With DeckBuild To start ATLAS in DECKBUILD, type: deckbuild -as at the UNIX system command prompt. The command line option, -as, instructs DECKBUILD to start ATLAS as the default simulator. If you want to start from an existing input file, start DECKBUILD by typing: deckbuild -as The run-time output shows the execution of each ATLAS command and includes error messages, warnings, extracted parameters, and other important output for evaluating each ATLAS run. When ATLAS runs in this mode, the run-time output is sent to the output section of the DeckBuild Window and can be saved as needed. Therefore, you don’t need to save the run-time output explicitly. The following command line, however, specifies the name of a file that will be used for storing the run-time output.A prepared command file is required for running in batch mode. We advise you to save the run-time output to a file, since error messages in the run-time output would otherwise be lost when the batch job completes. For example: deckbuild -run -as -outfile Using this command requires a local X-Windows system to be running. The job runs inside a DECKBUILD icon on the terminal and quits automatically when the ATLAS simulation is complete. You can also run DECKBUILD using a remote display. For example: deckbuild -run -as -outfile -display:0.0 2.3.3: No Windows Batch Mode With DeckBuild For completely non-X Windows operation of DECKBUILD, use the -ascii parameter. For example: deckbuild -run -ascii -as -outfile This command directs DECKBUILD to run the ATLAS simulation without the DeckBuild Window or icon. To run a remote ATLAS simulation under DECKBUILD without display and then logout from the system, use the UNIX command, nohup, before the DECKBUILD command line. Input files within DECKBUILD may also contain runs from other programs such as ATHENA or DEVEDIT along with the ATLAS runs. Running a given version number of ATLAS The go statement can be modified to provide parameters for the ATLAS run. If the number set by -P is greater than the number of processors available or than the number of parallel thread licenses, the number is automatically reduced to this cap number. But this isn’t recommended by SILVACO. If you don’t want the overhead of the DeckBuild Window, use the No Windows Mode. Many important features such as variable substitution, automatic interfacing to process simulation, and parameter extraction are unavailable outside the DECKBUILD environment. Simply specify the name of the output file. For example: atlas -logfile Note: The standard examples supplied with ATLAS will not run correctly outside of DECKBUILD. 2.3.6: TMA Compatibility Mode You can add the -TMA command line flag to the atlas command to direct the ATLAS simulator to operate in TMA Compatibility Mode. In this mode, the default material models and parameters are altered to closely agree with those of TMA’s Medici? simulator. 2.3.7: ISE Compatibility Mode You can add the -ISE command line flag to the atlas command to direct the ATLAS simulator to operate in ISE Compatibility Mode. In this mode, the default material models and parameters are altered to closely agree with those of ISE’s Dessis? simulator. 2-4 SILVACO, Inc. Getting Started with ATLAS 2.4: Accessing The Examples ATLAS has a library of standard examples that demonstrate how the program is used to simulate different technologies. These examples are a good starting point for creating your own simulations. The examples are accessed from the menu system in DECKBUILD. To select and load an example: 1. Start DECKBUILD with ATLAS as the simulator, which is described in the previous section. 2. Use left mouse button to pull down the Main Control menu. 3. Select Examples. An index will then appear in a Deckbuild Examples Window (see Figure 2-2). Figure 2-2: Examples Index in DeckBuild The examples are divided by technology or technology group. For instance, the most common technologies are individually listed (e.g., MOS are under BJT), while others are grouped with similar devices (e.g., IGBT and LDMOS are under POWER, and solar cell and photodiode are under OPTOELECTRONICS). 4. Choose the technology by double clicking the left mouse button over that item. A list of examples for that technology will appear. These examples typically illustrate different devices, applications, or types of simulation. You can also search for an example by selecting the Index button. Wildcards can be used in the search. SILVACO, Inc. 2-5 ATLAS User’s Manual 5. Choose a particular example by double clicking the left mouse button over that item in the list. A text description of the example will appear in the window. This text describes the important physical mechanisms in the simulation and the details of the ATLAS syntax used. You should read this information before proceeding. 6. Press the Load example button. The input command file for the example will be copied into your current working directory together with any associated files. A copy of the command file will be loaded into DECKBUILD. Note that the Load example button remains faded out until this step is performed correctly. 7. Press the run button in the middle frame of the DECKBUILD application window to run the example. Alternatively, most examples are supplied with results that are copied into the current working directory along with the input file. To view the results, select (highlight) the name of the results file and select Tools-Plot. See the TONYPLOT USER’S MANUAL for details on using TONYPLOT. 2-6 SILVACO, Inc. Getting Started with ATLAS 2.5: The ATLAS Syntax An ATLAS command file is a list of commands for ATLAS to execute. This list is stored as an ASCII text file that can be prepared in DECKBUILD or in any text editor. Preparing an input file in DECKBUILD is preferred. You can create an input file by using the DeckBuild Commands menu in the DeckBuild Window. 2.5.1: Statements and Parameters The input file contains a sequence of statements. Each statement consists of a keyword that identifies the statement and a set of parameters. One important exception is that commands described in this manual as being executed by DECKBUILD rather than ATLAS are case sensitive. These include EXTRACT, SET, GO, and SYSTEM. Also, filenames for input and output under UNIX are case sensitive. For any, ATLAS may have four different types for the parameter. These are: Real, Integer, Character, and Logical. All other items are parameters of the DOPING statement. UNIFORM and N.TYPE are Logical parameters. Their presence on the line sets their values to true. Otherwise, they take their default values (usually false). CONCENTRATION is a Real parameter and takes floating point numbers as input values. REGION is an Integer parameter taking only integer numbers as input. OUTFILE is a Character parameter type taking strings as input. The statement keyword must come first but the order of parameters within a statement is unimportant. You only need to use enough letters of any parameter to distinguish it from any other parameter on the same statement. Thus, CONCENTRATION can be shortened to CONC. REGION. It can’t be shortened to R, however, since there’s a parameter called RATIO associated with the DOPING statement. These lines are used as comments. ATLAS can read up to 256 characters on one line. But it is better to spread long input statements over several lines to make the input file more readable. The \ character at the end of a line indicates continuation. For more information about statements and parameters in ATLAS, see Chapter 21: “Statements”. 2.5.2: The Order of ATLAS Commands The order in which statements occur in an ATLAS input file is important. There are five groups of statements that must occur in the correct order (see Figure 2-3). Otherwise, an error message will appear, which may cause incorrect operation or termination of the program. For example, if the material parameters or models are set in the wrong order, then they may not be used in the calculations. The order of statements within the mesh definition, structural definition, and solution groups is also important. Otherwise, it may also cause incorrect operation or termination of the program. SILVACO, Inc. 2-7 ATLAS User’s Manual. Group Statements 1. Structure Specification MESH REGION ELECTRODE DOPING 2. Material Models Specification MATERIAL MODELS CONTACT INTERFACE 3. Numerical Method Selection METHOD 4. Solution Specification LOG SOLVE LOAD SAVE 5. Results Analysis EXTRACT TONYPLOT Figure 2-3: ATLAS Command Groups with the Primary Statements in each Group 2.5.3: The DeckBuild Command Menu The DeckBuild Command Menu (Command Menu) can help you to create input files. This menu is found under the Commands button on DECKBUILD’s main screen. The Commands Menu is configured for ATLAS whenever ATLAS is the currently active simulator in DECKBUILD. When ATLAS is active, which is indicated in the lower bar of the DeckBuild Window, an ATLAS command prompt will appear in the DECKBUILD output section. The Command Menu gives you access to pop-up windows where you type information. When you select the Write button, syntactically correct statements are written to the DECKBUILD text edit region. The DeckBuild Command Menu does not support all possible ATLAS syntax, but aims to cover the most commonly used commands. 2.5.4: PISCES-II Quick Start This section is a quickstart for those who may be familiar with the syntax and use of the Stanford University PISCES-II program or other device simulators derived from this program. Multiple runs of ATLAS are possible in the same input file separated by the line go atlas. There’s also no need to separate process and device simulation runs of SILVACO products into separate input files. A more reliable and easier to use syntax using LOCATION and SPACING is available. The SYMBOLIC statement is not used. Historically, SYMBOLIC and METHOD were used as a coupled pair of statements, but it is more convenient to use a single statement (METHOD) instead. Most of the old parameters of the SYMBOLIC statement have the same meaning and names, despite this move to a single statement. One notable change in ATLAS is that you can combine numerical methods together. These include SET, EXTRACT, GO, SYSTEM, and SOURCE. In addition to these changes, the physical models are generally different in ATLAS. Most of the original PISCES-II models have been preserved but often are not the default or the recommended models to use. See the on-line examples for technology specific information about models. SILVACO, Inc. 2-9 ATLAS User’s Manual 2.6: Defining A Structure There are three ways to define a device structure in ATLAS. The first way is to read an existing structure from a file. The structure is created either by an earlier ATLAS run or another program such as ATHENA or DEVEDIT. A MESH statement loads in the mesh, geometry, electrode positions, and doping of the structure. The third way is create a structure by using the ATLAS command language. See Chapter 21: “Statements” for more information about the ATLAS syntax. 2.6.