Oct 04, 2014 carbon nanotube field effect transistor cntfet is an promising alternative of an conventional cmos technology in future. Overview of mosfet models mosfet output templates ideally, m1 one finger and m2 five fingers should have same values of channel current since their w and l values are same, but these values are different because for the fingered mosfets, the channel current, effective. For more details on hspice input file format, please refer to the. Spice was originally created when punchcards were the primary method of computer input. Hspice simulation and analysis user guide version y2006. The contents of this file appear later in this section.
Capacitance model see capacitance model in the starhspice manual. Hspice simulation and analysis user guide version x2005. Brief introduction to hspice simulation wojciech giziewicz 1 introduction this document is based on one written by ihsan djomehri, spring 1999. Significant problems with ac sensitivities in 3f2 only have been fixed. How to use this manual the manual is a work in progress. However, there is very little literature discussing the procedures to use cntfet for developing vlsi circuits. Tips for using hspice university of california, berkeley. Capnxxx for nodal capacitance output, hspice prints or plots the capacitance of the specified node nxxxx. Before running hspice, users should execute the command source usrclassee dot.
Although spice comes in many flavors you think thats a bad pun, keep reading, we strongly. A hspice model of carbon nanotube field effect transistor. It models voltage controlled current source i btbt in order to evaluate the device subthreshold behaviour and the static power consumption. This manual is intended to provide a complete description of ngspices functionality, features, commands, and procedures. This manual contains the reference material needed when working with special circuit analyses in pspice. Currently cntfets have been used for various applications in building vlsi circuits. Hspice tutorial university of california, berkeley.
Modelling and characterization of cntfet using hspice currently cntfets have been used for various applications in building vlsi circuits. The linked sites, articles and presented information are provided as a useful insight to help you decide on the type of engineering expert you might need. Simulation results were carried out using hspice based on the cntfet model in 32 nanometer technology in different values of vdd at room temperature. However, you will need to explicitly command hspice to generate the extra. Spice reads in a list of circuit nodes and the elements between.
Input parameters for demonstration input value type 1 s 10 nm w 1. The starhspice optimizing analog circuit simulator is a industrialgrade circuit analysis product for the simulation of electrical circuits in steadystate, transient, and frequency domains. Stanford cnfet model hspice stanford nanoelectronics lab. The subject of this paper is the convetional cntfet. With over 500,000 copies distributed so far, many users have reported. Starhspice quick reference guide 35 if a capacitor model exists using the same name as a parameter for capval, the model name is taken to avoid syntactic conflicts.
Cntfet sbcntfet 4, the conventional cntfet ccntfet featuring a doping profile similar to nmosfet 5, the dualgate cntfet exhibits n or ptype unipolar behavior tunable by electrostatic doping 6 and the tunneling cntfet 7. Cntfet sb cntfet 4, the conventional cntfet c cntfet featuring a doping profile similar to nmosfet 5, the dualgate cntfet exhibits n or ptype unipolar behavior tunable by electrostatic doping 6 and the tunneling cntfet 7. Carbon nanotube field effect transistor cntfet is an promising alternative of an conventional cmos technology in future. Hspice mockups have been achieved on the subtractor designed using the modelled cntfet. Hspice elements and device models manual version x2005.
The cntfet model works for mosfet like cnfet device. Carbon nanotube field effect transistorcntfet is an promising alternative of an conventional cmos technology in future. As far as it is known, this is the first attempt to design half subtractor and full subtractor using cntfet. Awaves is a program that allows you to graphically plot the results of the hspice analysis. The procedure for opening an xwindow varies depending on the type of computer you are using. Intrinsic elements chishuen lee, eric pop, senior member, ieee, aaron d. Hspice simulation of d latch and double edge triggered flip. A compact virtualsource model for carbon nanotube fieldeffect transistors in the sub10nm regimepart i. Audience this manual is intended for design engineers who use star hspice to develop, test, analyze, and modify circuit designs. Pdf modelling and characterization of cntfet using. Included in this manual are detailed command descriptions, startup option definitions, and a pspice your microsoft windows users guide. Stanford university virtualsource carbon nanotube field. Carbon nanotubes are becoming more and more popular due to its mechanical and electrical properties. However, there is very little literature discussing the.
To establish a simple and high accuracy cntfet model in hspice, based on the semiclassical model of cntfet, the relationship between selfconsistent electric potential and carrier density is. M multiplier used to simulate multiple parallel capacitors. Audience this manual is intended for design engineers who use starhspice to develop, test, analyze, and. Modelling and characterization of cntfet using hspice. Cntfet hspice models are selected from 22 and 32nm bsim ptm predictive technology model simosfet, respectively.
If its name contains version xxplus, it describes the actual code status, found at the date of issue in the git source code management scm tool. The page numbers in the rest of this document refer to this manual. Its n structure albeit simple provides a behavior like. Nisha sarwade 50 international journal of emerging trends in electrical and electronics ijetee issn. Philip wong, fellow, ieee abstractwe presents a datacalibrated compact model of. If you have questions, read the section on workstation basics later in this handout. This manual generally follows the conventions used in the microsoft windows users guide. Franklin, senior member, ieee, wilfried haensch, fellow, ieee, and h. Hspice also has specific file naming conventions to indicate the function of each file. A compact virtualsource model for carbon nanotube field.
Audience this manual is intended for design engineers who use starhspice to develop, test, analyze, and modify circuit designs. Related documents the following documents pertain to. Hspice is just a program that takes in a netlist a simple text. This manual is not a book about learning spice usage, however the novice user may. Im doing schematic and simulation of opamp circuit using synopsys hspice 90nm technology. Originally developed at berkeley in the late 60s and early 70s, spice has evolved into one of the tools of choice for circuit simulation.
7 37 473 188 300 298 1441 1322 1194 1596 1579 487 1362 1027 1083 681 191 1366 1367 322 936 1119 398 423 746 1454 622 1389 1208 1155